Merge branch 'goimports-local' into 'main'

run goimports -local against the entire codebase

See merge request nvidia/container-toolkit/container-toolkit!512

.common-ci.yml

@@ -1,4 +1,4 @@
-# Copyright (c) 2021, NVIDIA CORPORATION.  All rights reserved.
+# Copyright (c) 2021-2022, NVIDIA CORPORATION.  All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -12,9 +12,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 default:
-  image: docker:stable
+  image: docker
   services:
-    - name: docker:stable-dind
+    - name: docker:dind
       command: ["--experimental"]
 
 variables:
@@ -23,6 +23,7 @@ variables:
   BUILD_MULTI_ARCH_IMAGES: "true"
 
 stages:
+  - trigger
   - image
   - lint
   - go-checks
@@ -34,51 +35,68 @@ stages:
   - scan
   - release
 
-# Define the distribution targets
-.dist-amazonlinux2:
-  variables:
-    DIST: amazonlinux2
+.pipeline-trigger-rules:
+  rules:
+    # We trigger the pipeline if started manually
+    - if: $CI_PIPELINE_SOURCE == "web"
+    # We trigger the pipeline on the main branch
+    - if: $CI_COMMIT_BRANCH == "main"
+    # We trigger the pipeline on the release- branches
+    - if: $CI_COMMIT_BRANCH =~ /^release-.*$/
+    # We trigger the pipeline on tags
+    - if: $CI_COMMIT_TAG && $CI_COMMIT_TAG != ""
 
+workflow:
+  rules:
+    # We trigger the pipeline on a merge request
+    - if: $CI_PIPELINE_SOURCE == 'merge_request_event'
+    # We then add all the regular triggers
+    - !reference [.pipeline-trigger-rules, rules]
+
+# The main or manual job is used to filter out distributions or architectures that are not required on
+# every build.
+.main-or-manual:
+  rules:
+    - !reference [.pipeline-trigger-rules, rules]
+    - if: $CI_PIPELINE_SOURCE == "schedule"
+      when: manual
+
+# The trigger-pipeline job adds a manualy triggered job to the pipeline on merge requests.
+trigger-pipeline:
+  stage: trigger
+  script:
+    - echo "starting pipeline"
+  rules:
+    - !reference [.main-or-manual, rules]
+    - if: $CI_PIPELINE_SOURCE == "merge_request_event"
+      when: manual
+      allow_failure: false
+    - when: always
+
+# Define the distribution targets
 .dist-centos7:
+  rules:
+    - !reference [.main-or-manual, rules]
   variables:
     DIST: centos7
-    CVE_UPDATES: "cyrus-sasl-lib"
 
 .dist-centos8:
   variables:
     DIST: centos8
-    CVE_UPDATES: "cyrus-sasl-lib"
-
-.dist-debian10:
-  variables:
-    DIST: debian10
-
-.dist-debian9:
-  variables:
-    DIST: debian9
-
-.dist-opensuse-leap15.1:
-  variables:
-    DIST: opensuse-leap15.1
 
 .dist-ubi8:
+  rules:
+    - !reference [.main-or-manual, rules]
   variables:
     DIST: ubi8
-    CVE_UPDATES: "cyrus-sasl-lib"
-
-.dist-ubuntu16.04:
-  variables:
-    DIST: ubuntu16.04
 
 .dist-ubuntu18.04:
   variables:
     DIST: ubuntu18.04
-    CVE_UPDATES: "libsasl2-2 libsasl2-modules-db"
 
 .dist-ubuntu20.04:
   variables:
     DIST: ubuntu20.04
-    CVE_UPDATES: "libsasl2-2 libsasl2-modules-db"
 
 .dist-packaging:
   variables:
@@ -98,6 +116,8 @@ stages:
     ARCH: arm64
 
 .arch-ppc64le:
+  rules:
+    - !reference [.main-or-manual, rules]
   variables:
     ARCH: ppc64le
 
@@ -138,7 +158,7 @@ test-packaging:
 # Download the regctl binary for use in the release steps
 .regctl-setup:
   before_script:
-    - export REGCTL_VERSION=v0.3.10
+    - export REGCTL_VERSION=v0.4.5
     - apk add --no-cache curl
     - mkdir -p bin
     - curl -sSLo bin/regctl https://github.com/regclient/regclient/releases/download/${REGCTL_VERSION}/regctl-linux-amd64
@@ -190,10 +210,12 @@ test-packaging:
     OUT_IMAGE_NAME: "${CI_REGISTRY_IMAGE}/staging/container-toolkit"
 
 # Define an external release step that pushes an image to an external repository.
-# This includes a devlopment image off master.
+# This includes a devlopment image off main.
 .release:external:
   extends:
     - .release
+  variables:
+    FORCE_PUBLISH_IMAGES: "yes"
   rules:
     - if: $CI_COMMIT_TAG
       variables:
@@ -210,13 +232,6 @@ release:staging-centos7:
   needs:
     - image-centos7
 
-release:staging-centos8:
-  extends:
-    - .release:staging
-    - .dist-centos8
-  needs:
-    - image-centos8
-
 release:staging-ubi8:
   extends:
     - .release:staging
@@ -224,16 +239,6 @@ release:staging-ubi8:
   needs:
     - image-ubi8
 
-release:staging-ubuntu18.04:
-  extends:
-    - .release:staging
-    - .dist-ubuntu18.04
-  needs:
-    - test-toolkit-ubuntu18.04
-    - test-containerd-ubuntu18.04
-    - test-crio-ubuntu18.04
-    - test-docker-ubuntu18.04
-
 release:staging-ubuntu20.04:
   extends:
     - .release:staging

.github/workflows/blossom-ci.yml

@@ -0,0 +1,113 @@
+# Copyright (c) 2020-2023, NVIDIA CORPORATION.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# A workflow to trigger ci on hybrid infra (github + self hosted runner)
+name: Blossom-CI
+on:
+  issue_comment:
+    types: [created]
+  workflow_dispatch:
+      inputs:
+          platform:
+            description: 'runs-on argument'     
+            required: false
+          args:
+            description: 'argument'     
+            required: false
+jobs:
+  Authorization:
+    name: Authorization
+    runs-on: blossom 
+    outputs:
+      args: ${{ env.args }}
+     
+    # This job only runs for pull request comments
+    if: |
+         contains( '\
+         anstockatnv,\
+         rorajani,\
+         cdesiniotis,\
+         shivamerla,\
+         ArangoGutierrez,\
+         elezar,\
+         klueska,\
+         zvonkok,\
+         ', format('{0},', github.actor)) && 
+         github.event.comment.body == '/blossom-ci'  
+    steps:
+      - name: Check if comment is issued by authorized person
+        run: blossom-ci
+        env:
+          OPERATION: 'AUTH'
+          REPO_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          REPO_KEY_DATA: ${{ secrets.BLOSSOM_KEY }}
+      
+  Vulnerability-scan:
+    name: Vulnerability scan
+    needs: [Authorization]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+        with:
+          repository: ${{ fromJson(needs.Authorization.outputs.args).repo }}
+          ref: ${{ fromJson(needs.Authorization.outputs.args).ref }}
+          lfs: 'true'
+      
+      # repo specific steps 
+      #- name: Setup java
+      #  uses: actions/setup-java@v1
+      #  with:
+      #    java-version: 1.8
+      
+      # add blackduck properties https://synopsys.atlassian.net/wiki/spaces/INTDOCS/pages/631308372/Methods+for+Configuring+Analysis#Using-a-configuration-file
+      #- name: Setup blackduck properties
+      #  run: |
+      #       PROJECTS=$(mvn -am dependency:tree | grep maven-dependency-plugin | awk '{ out="com.nvidia:"$(NF-1);print out }' | grep rapids | xargs | sed -e 's/ /,/g')
+      #       echo detect.maven.build.command="-pl=$PROJECTS -am" >> application.properties
+      #       echo detect.maven.included.scopes=compile >> application.properties
+          
+      - name: Run blossom action
+        uses: NVIDIA/blossom-action@main
+        env:
+          REPO_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          REPO_KEY_DATA: ${{ secrets.BLOSSOM_KEY }}
+        with:
+          args1: ${{ fromJson(needs.Authorization.outputs.args).args1 }}
+          args2: ${{ fromJson(needs.Authorization.outputs.args).args2 }}
+          args3: ${{ fromJson(needs.Authorization.outputs.args).args3 }}
+          
+  Job-trigger:
+    name: Start ci job
+    needs: [Vulnerability-scan]
+    runs-on: blossom
+    steps:
+      - name: Start ci job
+        run: blossom-ci
+        env:
+          OPERATION: 'START-CI-JOB'
+          CI_SERVER: ${{ secrets.CI_SERVER }}
+          REPO_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+              
+  Upload-Log:
+    name: Upload log
+    runs-on: blossom
+    if : github.event_name == 'workflow_dispatch'
+    steps:
+      - name: Jenkins log for pull request ${{ fromJson(github.event.inputs.args).pr }} (click here)
+        run: blossom-ci
+        env:
+          OPERATION: 'POST-PROCESSING'
+          CI_SERVER: ${{ secrets.CI_SERVER }}
+          REPO_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/pre-sanity.yml

@@ -0,0 +1,22 @@
+name: Run pre sanity
+
+# run this workflow for each commit
+on: [pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+             
+      - name: Build dev image
+        run: make .build-image
+      
+      - name: Build
+        run: make docker-build
+
+      - name: Tests
+        run: make docker-coverage
+
+      - name: Checks
+        run: make docker-check

.gitignore

@@ -1,8 +1,13 @@
 dist
+artifacts
 *.swp
 *.swo
-/coverage.out
+/coverage.out*
 /test/output/
 /nvidia-container-runtime
+/nvidia-container-runtime.*
+/nvidia-container-runtime-hook
 /nvidia-container-toolkit
+/nvidia-ctk
 /shared-*
+/release-*

.gitlab-ci.yml

@@ -1,4 +1,4 @@
-# Copyright (c) 2019-2021, NVIDIA CORPORATION.  All rights reserved.
+# Copyright (c) 2019-2022, NVIDIA CORPORATION.  All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -25,43 +25,15 @@ build-dev-image:
 
 .requires-build-image:
   image: "${BUILDIMAGE}"
+  needs:
+    - job: build-dev-image
 
-.go-check:
+check:
   extends:
     - .requires-build-image
   stage: go-checks
-
-fmt:
-  extends:
-    - .go-check
   script:
-    - make assert-fmt
-
-vet:
-  extends:
-    - .go-check
-  script:
-    - make vet
-
-lint:
-  extends:
-    - .go-check
-  script:
-    - make lint
-  allow_failure: true
-
-ineffassign:
-  extends:
-    - .go-check
-  script:
-    - make ineffassign
-  allow_failure: true
-
-misspell:
-  extends:
-    - .go-check
-  script:
-    - make misspell
+    - make check
 
 go-build:
   extends:
@@ -94,33 +66,43 @@ unit-tests:
     - .multi-arch-build
     - .package-artifacts
   stage: package-build
-  timeout: 2h 30m
+  timeout: 3h
   script:
-    - ./scripts/release.sh ${DIST}-${ARCH}
+    - ./scripts/build-packages.sh ${DIST}-${ARCH}
 
   artifacts:
     name: ${ARTIFACTS_NAME}
     paths:
       - ${ARTIFACTS_ROOT}
+  needs:
+    - job: package-meta-packages
+      artifacts: true
 
 # Define the package build targets
-package-amazonlinux2-aarch64:
+package-meta-packages:
   extends:
-    - .package-build
-    - .dist-amazonlinux2
-    - .arch-aarch64
+    - .package-artifacts
+  stage: package-build
+  variables:
+    SKIP_LIBNVIDIA_CONTAINER: "yes"
+    SKIP_NVIDIA_CONTAINER_TOOLKIT: "yes"
+  parallel:
+    matrix:
+      - PACKAGING: [deb, rpm]
+  before_script:
+    - apk add --no-cache coreutils build-base sed git bash make
+  script:
+    - ./scripts/build-packages.sh ${PACKAGING}
+  artifacts:
+    name: ${ARTIFACTS_NAME}
+    paths:
+      - ${ARTIFACTS_ROOT}
 
-package-amazonlinux2-x86_64:
-  extends:
-    - .package-build
-    - .dist-amazonlinux2
-    - .arch-x86_64
-
-package-centos7-ppc64le:
+package-centos7-aarch64:
   extends:
     - .package-build
     - .dist-centos7
-    - .arch-ppc64le
+    - .arch-aarch64
 
 package-centos7-x86_64:
   extends:
@@ -146,36 +128,6 @@ package-centos8-x86_64:
     - .dist-centos8
     - .arch-x86_64
 
-package-debian10-amd64:
-  extends:
-    - .package-build
-    - .dist-debian10
-    - .arch-amd64
-
-package-debian9-amd64:
-  extends:
-    - .package-build
-    - .dist-debian9
-    - .arch-amd64
-
-package-opensuse-leap15.1-x86_64:
-  extends:
-    - .package-build
-    - .dist-opensuse-leap15.1
-    - .arch-x86_64
-
-package-ubuntu16.04-amd64:
-  extends:
-    - .package-build
-    - .dist-ubuntu16.04
-    - .arch-amd64
-
-package-ubuntu16.04-ppc64le:
-  extends:
-    - .package-build
-    - .dist-ubuntu16.04
-    - .arch-ppc64le
-
 package-ubuntu18.04-amd64:
   extends:
     - .package-build
@@ -216,7 +168,7 @@ package-ubuntu18.04-ppc64le:
   before_script:
     - !reference [.buildx-setup, before_script]
 
-    - apk add --no-cache bash make
+    - apk add --no-cache bash make git
     - 'echo "Logging in to CI registry ${CI_REGISTRY}"'
     - docker login -u "${CI_REGISTRY_USER}" -p "${CI_REGISTRY_PASSWORD}" "${CI_REGISTRY}"
   script:
@@ -228,39 +180,17 @@ image-centos7:
     - .package-artifacts
     - .dist-centos7
   needs:
-    - package-centos7-ppc64le
     - package-centos7-x86_64
 
-image-centos8:
-  extends:
-    - .image-build
-    - .package-artifacts
-    - .dist-centos8
-  needs:
-    - package-centos8-aarch64
-    - package-centos8-x86_64
-    - package-centos8-ppc64le
-
 image-ubi8:
   extends:
     - .image-build
     - .package-artifacts
     - .dist-ubi8
   needs:
-    # Note: The ubi8 image uses the centos8 packages
-    - package-centos8-aarch64
-    - package-centos8-x86_64
-    - package-centos8-ppc64le
-
-image-ubuntu18.04:
-  extends:
-    - .image-build
-    - .package-artifacts
-    - .dist-ubuntu18.04
-  needs:
-    - package-ubuntu18.04-amd64
-    - package-ubuntu18.04-arm64
-    - package-ubuntu18.04-ppc64le
+    # Note: The ubi8 image uses the centos7 packages
+    - package-centos7-aarch64
+    - package-centos7-x86_64
 
 image-ubuntu20.04:
   extends:
@@ -270,7 +200,8 @@ image-ubuntu20.04:
   needs:
     - package-ubuntu18.04-amd64
     - package-ubuntu18.04-arm64
-    - package-ubuntu18.04-ppc64le
+    - job: package-ubuntu18.04-ppc64le
+      optional: true
 
 # The DIST=packaging target creates an image containing all built packages
 image-packaging:
@@ -279,21 +210,26 @@ image-packaging:
     - .package-artifacts
     - .dist-packaging
   needs:
-    - package-amazonlinux2-aarch64
-    - package-amazonlinux2-x86_64
-    - package-centos7-ppc64le
-    - package-centos7-x86_64
-    - package-centos8-aarch64
-    - package-centos8-ppc64le
-    - package-centos8-x86_64
-    - package-debian10-amd64
-    - package-debian9-amd64
-    - package-opensuse-leap15.1-x86_64
-    - package-ubuntu16.04-amd64
-    - package-ubuntu16.04-ppc64le
-    - package-ubuntu18.04-amd64
-    - package-ubuntu18.04-arm64
-    - package-ubuntu18.04-ppc64le
+    - job: package-centos8-aarch64
+    - job: package-centos8-x86_64
+    - job: package-ubuntu18.04-amd64
+    - job: package-ubuntu18.04-arm64
+    - job: package-amazonlinux2-aarch64
+      optional: true
+    - job: package-amazonlinux2-x86_64
+      optional: true
+    - job: package-centos7-aarch64
+      optional: true
+    - job: package-centos7-x86_64
+      optional: true
+    - job: package-centos8-ppc64le
+      optional: true
+    - job: package-debian10-amd64
+      optional: true
+    - job: package-opensuse-leap15.1-x86_64
+      optional: true
+    - job: package-ubuntu18.04-ppc64le
+      optional: true
 
 # Define publish test helpers
 .test:toolkit:
@@ -325,34 +261,6 @@ image-packaging:
     TEST_CASES: "crio"
 
 # Define the test targets
-test-toolkit-ubuntu18.04:
-  extends:
-    - .test:toolkit
-    - .dist-ubuntu18.04
-  needs:
-    - image-ubuntu18.04
-
-test-containerd-ubuntu18.04:
-  extends:
-    - .test:containerd
-    - .dist-ubuntu18.04
-  needs:
-    - image-ubuntu18.04
-
-test-crio-ubuntu18.04:
-  extends:
-    - .test:crio
-    - .dist-ubuntu18.04
-  needs:
-    - image-ubuntu18.04
-
-test-docker-ubuntu18.04:
-  extends:
-    - .test:docker
-    - .dist-ubuntu18.04
-  needs:
-    - image-ubuntu18.04
-
 test-toolkit-ubuntu20.04:
   extends:
     - .test:toolkit

.gitmodules

@@ -1,9 +1,4 @@
 [submodule "third_party/libnvidia-container"]
 	path = third_party/libnvidia-container
 	url = https://gitlab.com/nvidia/container-toolkit/libnvidia-container.git
-[submodule "third_party/nvidia-container-runtime"]
-	path = third_party/nvidia-container-runtime
-	url = https://gitlab.com/nvidia/container-toolkit/container-runtime.git
-[submodule "third_party/nvidia-docker"]
-	path = third_party/nvidia-docker
-	url = https://gitlab.com/nvidia/container-toolkit/nvidia-docker.git
+	branch = main

.golangci.yml

@@ -0,0 +1,33 @@
+run:
+  deadline: 10m
+
+linters:
+  enable:
+    - contextcheck
+    - gocritic
+    - gofmt
+    - goimports
+    - gosec
+    - gosimple
+    - govet
+    - ineffassign
+    - misspell
+    - staticcheck
+    - unconvert
+
+linters-settings:
+  goimports:
+    local-prefixes: github.com/NVIDIA/nvidia-container-toolkit
+
+issues:
+  exclude-rules:
+  # Exclude the gocritic dupSubExpr issue for cgo files.
+  - path: internal/dxcore/dxcore.go
+    linters:
+    - gocritic
+    text: dupSubExpr
+  # Exclude the checks for usage of returns to config.Delete(Path) in the crio and containerd config packages.
+  - path: pkg/config/engine/
+    linters:
+    - errcheck
+    text: config.Delete

.nvidia-ci.yml

@@ -1,4 +1,4 @@
-# Copyright (c) 2021, NVIDIA CORPORATION.  All rights reserved.
+# Copyright (c) 2021-2022, NVIDIA CORPORATION.  All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -27,14 +27,17 @@ default:
 variables:
   DOCKER_DRIVER: overlay2
   DOCKER_TLS_CERTDIR: "/certs"
-  # Release "devel"-tagged images off the master branch
-  RELEASE_DEVEL_BRANCH: "master"
+  # Release "devel"-tagged images off the main branch
+  RELEASE_DEVEL_BRANCH: "main"
   DEVEL_RELEASE_IMAGE_VERSION: "devel"
   # On the multi-arch builder we don't need the qemu setup.
   SKIP_QEMU_SETUP: "1"
   # Define the public staging registry
   STAGING_REGISTRY: registry.gitlab.com/nvidia/container-toolkit/container-toolkit/staging
   STAGING_VERSION: ${CI_COMMIT_SHORT_SHA}
+  ARTIFACTORY_REPO_BASE: "https://urm.nvidia.com/artifactory/sw-gpu-cloudnative"
+  KITMAKER_RELEASE_FOLDER: "kitmaker"
+  PACKAGE_ARCHIVE_RELEASE_FOLDER: "releases"
 
 .image-pull:
   stage: image-build
@@ -48,8 +51,9 @@ variables:
     OUT_IMAGE_NAME: "${CI_REGISTRY_IMAGE}/container-toolkit"
     PUSH_MULTIPLE_TAGS: "false"
   # We delay the job start to allow the public pipeline to generate the required images.
-  when: delayed
-  start_in: 30 minutes
+  rules:
+    - when: delayed
+      start_in: 30 minutes
   timeout: 30 minutes
   retry:
     max: 2
@@ -67,34 +71,24 @@ variables:
 
 image-centos7:
   extends:
-    - .image-pull
     - .dist-centos7
-
-image-centos8:
-  extends:
     - .image-pull
-    - .dist-centos8
 
 image-ubi8:
   extends:
-    - .image-pull
     - .dist-ubi8
-
-image-ubuntu18.04:
-  extends:
     - .image-pull
-    - .dist-ubuntu18.04
 
 image-ubuntu20.04:
   extends:
-    - .image-pull
     - .dist-ubuntu20.04
+    - .image-pull
 
 # The DIST=packaging target creates an image containing all built packages
 image-packaging:
   extends:
-    - .image-pull
     - .dist-packaging
+    - .image-pull
 
 # We skip the integration tests for the internal CI:
 .integration:
@@ -111,10 +105,10 @@ image-packaging:
   image: "${PULSE_IMAGE}"
   variables:
     IMAGE: "${CI_REGISTRY_IMAGE}/container-toolkit:${CI_COMMIT_SHORT_SHA}-${DIST}"
-    IMAGE_ARCHIVE: "container-toolkit.tar"
-  except:
-    variables:
-      - $SKIP_SCANS && $SKIP_SCANS == "yes"
+    IMAGE_ARCHIVE: "container-toolkit-${DIST}-${ARCH}-${CI_JOB_ID}.tar"
+  rules:
+    - if: $SKIP_SCANS != "yes"
+    - when: manual
   before_script:
     - docker login -u "${CI_REGISTRY_USER}" -p "${CI_REGISTRY_PASSWORD}" "${CI_REGISTRY}"
     # TODO: We should specify the architecture here and scan all architectures
@@ -126,6 +120,7 @@ image-packaging:
     - if [ -z "$SSA_TOKEN" ]; then exit 1; else echo "SSA_TOKEN set!"; fi
   script:
     - pulse-cli -n $NSPECT_ID --ssa $SSA_TOKEN scan -i $IMAGE_ARCHIVE -p $CONTAINER_POLICY -o
+    - rm -f "${IMAGE_ARCHIVE}"
   artifacts:
     when: always
     expire_in: 1 week
@@ -139,89 +134,53 @@ image-packaging:
 # Define the scan targets
 scan-centos7-amd64:
   extends:
-    - .scan
     - .dist-centos7
     - .platform-amd64
+    - .scan
   needs:
     - image-centos7
 
-scan-centos7-arm64:
-  extends:
-    - .scan
-    - .dist-centos7
-    - .platform-arm64
-  needs:
-    - image-centos7
-    - scan-centos7-amd64
-
-scan-centos8-amd64:
-  extends:
-    - .scan
-    - .dist-centos8
-    - .platform-amd64
-  needs:
-    - image-centos8
-
-scan-centos8-arm64:
-  extends:
-    - .scan
-    - .dist-centos8
-    - .platform-arm64
-  needs:
-    - image-centos8
-    - scan-centos8-amd64
-
-scan-ubuntu18.04-amd64:
-  extends:
-    - .scan
-    - .dist-ubuntu18.04
-    - .platform-amd64
-  needs:
-    - image-ubuntu18.04
-
-scan-ubuntu18.04-arm64:
-  extends:
-    - .scan
-    - .dist-ubuntu18.04
-    - .platform-arm64
-  needs:
-    - image-ubuntu18.04
-    - scan-ubuntu18.04-amd64
-
 scan-ubuntu20.04-amd64:
   extends:
-    - .scan
     - .dist-ubuntu20.04
     - .platform-amd64
+    - .scan
   needs:
     - image-ubuntu20.04
 
 scan-ubuntu20.04-arm64:
   extends:
-    - .scan
     - .dist-ubuntu20.04
     - .platform-arm64
+    - .scan
   needs:
     - image-ubuntu20.04
     - scan-ubuntu20.04-amd64
 
 scan-ubi8-amd64:
   extends:
-    - .scan
     - .dist-ubi8
     - .platform-amd64
+    - .scan
   needs:
     - image-ubi8
 
 scan-ubi8-arm64:
   extends:
-    - .scan
     - .dist-ubi8
     - .platform-arm64
+    - .scan
   needs:
     - image-ubi8
     - scan-ubi8-amd64
 
+scan-packaging:
+  extends:
+    - .dist-packaging
+    - .scan
+  needs:
+    - image-packaging
+
 # Define external release helpers
 .release:ngc:
   extends:
@@ -232,21 +191,48 @@ scan-ubi8-arm64:
     OUT_REGISTRY: "${NGC_REGISTRY}"
     OUT_IMAGE_NAME: "${NGC_REGISTRY_IMAGE}"
 
-.release:dockerhub:
+.release:packages:
+  stage: release
+  needs:
+    - image-packaging
+  variables:
+    VERSION: "${CI_COMMIT_SHORT_SHA}"
+    PACKAGE_REGISTRY: "${CI_REGISTRY}"
+    PACKAGE_REGISTRY_USER: "${CI_REGISTRY_USER}"
+    PACKAGE_REGISTRY_TOKEN: "${CI_REGISTRY_PASSWORD}"
+    PACKAGE_IMAGE_NAME: "${CI_REGISTRY_IMAGE}/container-toolkit"
+    PACKAGE_IMAGE_TAG: "${CI_COMMIT_SHORT_SHA}-packaging"
+    KITMAKER_ARTIFACTORY_REPO: "${ARTIFACTORY_REPO_BASE}-generic-local/${KITMAKER_RELEASE_FOLDER}"
+    ARTIFACTS_DIR: "${CI_PROJECT_DIR}/artifacts"
+  script:
+    - !reference [.regctl-setup, before_script]
+    - apk add --no-cache bash git
+    - regctl registry login "${PACKAGE_REGISTRY}" -u "${PACKAGE_REGISTRY_USER}" -p "${PACKAGE_REGISTRY_TOKEN}"
+    - ./scripts/extract-packages.sh "${PACKAGE_IMAGE_NAME}:${PACKAGE_IMAGE_TAG}"
+    - ./scripts/release-kitmaker-artifactory.sh "${KITMAKER_ARTIFACTORY_REPO}"
+    - rm -rf ${ARTIFACTS_DIR}
+
+# Define the package release targets
+release:packages:kitmaker:
+  extends:
+    - .release:packages
+
+release:archive:
   extends:
     - .release:external
-  variables:
-    OUT_REGISTRY_USER: "${REGISTRY_USER}"
-    OUT_REGISTRY_TOKEN: "${REGISTRY_TOKEN}"
-    OUT_REGISTRY: "${DOCKERHUB_REGISTRY}"
-    OUT_IMAGE_NAME: "${REGISTRY_IMAGE}"
-
-release:staging-ubuntu18.04:
-  extends:
-    - .release:staging
-    - .dist-ubuntu18.04
   needs:
-    - image-ubuntu18.04
+    - image-packaging
+  variables:
+    VERSION: "${CI_COMMIT_SHORT_SHA}"
+    PACKAGE_REGISTRY: "${CI_REGISTRY}"
+    PACKAGE_REGISTRY_USER: "${CI_REGISTRY_USER}"
+    PACKAGE_REGISTRY_TOKEN: "${CI_REGISTRY_PASSWORD}"
+    PACKAGE_IMAGE_NAME: "${CI_REGISTRY_IMAGE}/container-toolkit"
+    PACKAGE_IMAGE_TAG: "${CI_COMMIT_SHORT_SHA}-packaging"
+    PACKAGE_ARCHIVE_ARTIFACTORY_REPO: "${ARTIFACTORY_REPO_BASE}-generic-local/${PACKAGE_ARCHIVE_RELEASE_FOLDER}"
+  script:
+    - apk add --no-cache bash git
+    - ./scripts/archive-packages.sh "${PACKAGE_ARCHIVE_ARTIFACTORY_REPO}"
 
 release:staging-ubuntu20.04:
   extends:
@@ -259,51 +245,20 @@ release:staging-ubuntu20.04:
 # Release to NGC
 release:ngc-centos7:
   extends:
-    - .release:ngc
     - .dist-centos7
-
-release:ngc-centos8:
-  extends:
     - .release:ngc
-    - .dist-centos8
-
-release:ngc-ubuntu18.04:
-  extends:
-    - .release:ngc
-    - .dist-ubuntu18.04
 
 release:ngc-ubuntu20.04:
   extends:
-    - .release:ngc
     - .dist-ubuntu20.04
+    - .release:ngc
 
 release:ngc-ubi8:
   extends:
+    - .dist-ubi8
     - .release:ngc
-    - .dist-ubi8
 
-# Release to Dockerhub
-release:dockerhub-centos7:
+release:ngc-packaging:
   extends:
-    - .release:dockerhub
-    - .dist-centos7
-
-release:dockerhub-centos8:
-  extends:
-    - .release:dockerhub
-    - .dist-centos8
-
-release:dockerhub-ubuntu18.04:
-  extends:
-    - .release:dockerhub
-    - .dist-ubuntu18.04
-
-release:dockerhub-ubuntu20.04:
-  extends:
-    - .release:dockerhub
-    - .dist-ubuntu20.04
-
-release:dockerhub-ubi8:
-  extends:
-    - .release:dockerhub
-    - .dist-ubi8
+    - .dist-packaging
+    - .release:ngc

CHANGELOG.md

@@ -0,0 +1,382 @@
+# NVIDIA Container Toolkit Changelog
+
+## v1.15.0-rc.1
+* Skip update of ldcache in containers without ldconfig. The .so.SONAME symlinks are still created.
+* Normalize ldconfig path on use. This automatically adjust the ldconfig setting applied to ldconfig.real on systems where this exists.
+* Include `nvidia/nvoptix.bin` in list of graphics mounts.
+* Include `vulkan/icd.d/nvidia_layers.json` in list of graphics mounts.
+* Add support for `--library-search-paths` to `nvidia-ctk cdi generate` command.
+* Add support for injecting /dev/nvidia-nvswitch* devices if the NVIDIA_NVSWITCH=enabled envvar is specified.
+* Added support for `nvidia-ctk runtime configure --enable-cdi` for the `docker` runtime. Note that this requires Docker >= 25.
+* Fixed bug in `nvidia-ctk config` command when using `--set`. The types of applied config options are now applied correctly.
+* Add `--relative-to` option to `nvidia-ctk transform root` command. This controls whether the root transformation is applied to host or container paths.
+
+* [libnvidia-container] Fix device permission check when using cgroupv2 (fixes #227)
+
+## v1.14.3
+* [toolkit-container] Bump CUDA base image version to 12.2.2.
+
+## v1.14.2
+* Fix bug on Tegra-based systems where symlinks were not created in containers.
+* Add --csv.ignore-pattern command line option to nvidia-ctk cdi generate command.
+
+## v1.14.1
+* Fixed bug where contents of `/etc/nvidia-container-runtime/config.toml` is ignored by the NVIDIA Container Runtime Hook.
+
+* [libnvidia-container] Use libelf.so on RPM-based systems due to removed mageia repositories hosting pmake and bmake.
+
+## v1.14.0
+* Promote v1.14.0-rc.3 to v1.14.0
+
+## v1.14.0-rc.3
+* Added support for generating OCI hook JSON file to `nvidia-ctk runtime configure` command.
+* Remove installation of OCI hook JSON from RPM package.
+* Refactored config for `nvidia-container-runtime-hook`.
+* Added a `nvidia-ctk config` command which supports setting config options using a `--set` flag.
+* Added `--library-search-path` option to `nvidia-ctk cdi generate` command in `csv` mode. This allows folders where
+  libraries are located to be specified explicitly.
+* Updated go-nvlib to support devices which are not present in the PCI device database. This allows the creation of dev/char symlinks on systems with such devices installed.
+* Added `UsesNVGPUModule` info function for more robust platform detection. This is required on Tegra-based systems where libnvidia-ml.so is also supported.
+
+* [toolkit-container] Set `NVIDIA_VISIBLE_DEVICES=void` to prevent injection of NVIDIA devices and drivers into the NVIDIA Container Toolkit container.
+
+## v1.14.0-rc.2
+* Fix bug causing incorrect nvidia-smi symlink to be created on WSL2 systems with multiple driver roots.
+* Remove dependency on coreutils when installing package on RPM-based systems.
+* Create ouput folders if required when running `nvidia-ctk runtime configure`
+* Generate default config as post-install step.
+* Added support for detecting GSP firmware at custom paths when generating CDI specifications.
+* Added logic to skip the extraction of image requirements if `NVIDIA_DISABLE_REQUIRES` is set to `true`.
+
+* [libnvidia-container] Include Shared Compiler Library (libnvidia-gpucomp.so) in the list of compute libaries.
+
+* [toolkit-container] Ensure that common envvars have higher priority when configuring the container engines.
+* [toolkit-container] Bump CUDA base image version to 12.2.0.
+* [toolkit-container] Remove installation of nvidia-experimental runtime. This is superceded by the NVIDIA Container Runtime in CDI mode.
+
+## v1.14.0-rc.1
+
+* Add support for updating containerd configs to the `nvidia-ctk runtime configure` command.
+* Create file in `etc/ld.so.conf.d` with permissions `644` to support non-root containers.
+* Generate CDI specification files with `644` permissions to allow rootless applications (e.g. podman)
+* Add `nvidia-ctk cdi list` command to show the known CDI devices.
+* Add support for generating merged devices (e.g. `all` device) to the nvcdi API.
+* Use *.* pattern to locate libcuda.so when generating a CDI specification to support platforms where a patch version is not specified.
+* Update go-nvlib to skip devices that are not MIG capable when generating CDI specifications.
+* Add `nvidia-container-runtime-hook.path` config option to specify NVIDIA Container Runtime Hook path explicitly.
+* Fix bug in creation of `/dev/char` symlinks by failing operation if kernel modules are not loaded.
+* Add option to load kernel modules when creating device nodes
+* Add option to create device nodes when creating `/dev/char` symlinks
+
+* [libnvidia-container] Support OpenSSL 3 with the Encrypt/Decrypt library
+
+* [toolkit-container] Allow same envars for all runtime configs
+
+## v1.13.1
+
+* Update `update-ldcache` hook to only update ldcache if it exists.
+* Update `update-ldcache` hook to create `/etc/ld.so.conf.d` folder if it doesn't exist.
+* Fix failure when libcuda cannot be located during XOrg library discovery.
+* Fix CDI spec generation on systems that use `/etc/alternatives` (e.g. Debian)
+
+## v1.13.0
+
+* Promote 1.13.0-rc.3 to 1.13.0
+
+## v1.13.0-rc.3
+
+* Only initialize NVML for modes that require it when runing `nvidia-ctk cdi generate`.
+* Prefer /run over /var/run when locating nvidia-persistenced and nvidia-fabricmanager sockets.
+* Fix the generation of CDI specifications for management containers when the driver libraries are not in the LDCache.
+* Add transformers to deduplicate and simplify CDI specifications.
+* Generate a simplified CDI specification by default. This means that entities in the common edits in a spec are not included in device definitions.
+* Also return an error from the nvcdi.New constructor instead of panicing.
+* Detect XOrg libraries for injection and CDI spec generation.
+* Add `nvidia-ctk system create-device-nodes` command to create control devices.
+* Add `nvidia-ctk cdi transform` command to apply transforms to CDI specifications.
+* Add `--vendor` and `--class` options to `nvidia-ctk cdi generate`
+
+* [libnvidia-container] Fix segmentation fault when RPC initialization fails.
+* [libnvidia-container] Build centos variants of the NVIDIA Container Library with static libtirpc v1.3.2.
+* [libnvidia-container] Remove make targets for fedora35 as the centos8 packages are compatible.
+
+* [toolkit-container] Add `nvidia-container-runtime.modes.cdi.annotation-prefixes` config option that allows the CDI annotation prefixes that are read to be overridden.
+* [toolkit-container] Create device nodes when generating CDI specification for management containers.
+* [toolkit-container] Add `nvidia-container-runtime.runtimes` config option to set the low-level runtime for the NVIDIA Container Runtime
+
+## v1.13.0-rc.2
+
+* Don't fail chmod hook if paths are not injected
+* Only create `by-path` symlinks if CDI devices are actually requested.
+* Fix possible blank `nvidia-ctk` path in generated CDI specifications
+* Fix error in postun scriplet on RPM-based systems
+* Only check `NVIDIA_VISIBLE_DEVICES` for environment variables if no annotations are specified.
+* Add `cdi.default-kind` config option for constructing fully-qualified CDI device names in CDI mode
+* Add support for `accept-nvidia-visible-devices-envvar-unprivileged` config setting in CDI mode
+* Add `nvidia-container-runtime-hook.skip-mode-detection` config option to bypass mode detection. This allows `legacy` and `cdi` mode, for example, to be used at the same time.
+* Add support for generating CDI specifications for GDS and MOFED devices
+* Ensure CDI specification is validated on save when generating a spec
+* Rename `--discovery-mode` argument to `--mode` for `nvidia-ctk cdi generate`
+* [libnvidia-container] Fix segfault on WSL2 systems
+* [toolkit-container] Add `--cdi-enabled` flag to toolkit config
+* [toolkit-container] Install `nvidia-ctk` from toolkit container
+* [toolkit-container] Use installed `nvidia-ctk` path in NVIDIA Container Toolkit config
+* [toolkit-container] Bump CUDA base images to 12.1.0
+* [toolkit-container] Set `nvidia-ctk` path in the
+* [toolkit-container] Add `cdi.k8s.io/*` to set of allowed annotations in containerd config
+* [toolkit-container] Generate CDI specification for use in management containers
+* [toolkit-container] Install experimental runtime as `nvidia-container-runtime.experimental` instead of `nvidia-container-runtime-experimental`
+* [toolkit-container] Install and configure mode-specific runtimes for `cdi` and `legacy` modes
+
+## v1.13.0-rc.1
+
+* Include MIG-enabled devices as GPUs when generating CDI specification
+* Fix missing NVML symbols when running `nvidia-ctk` on some platforms [#49]
+* Add CDI spec generation for WSL2-based systems to `nvidia-ctk cdi generate` command
+* Add `auto` mode to `nvidia-ctk cdi generate` command to automatically detect a WSL2-based system over a standard NVML-based system.
+* Add mode-specific (`.cdi` and `.legacy`) NVIDIA Container Runtime binaries for use in the GPU Operator
+* Discover all `gsb*.bin` GSP firmware files when generating CDI specification.
+* Align `.deb` and `.rpm` release candidate package versions
+* Remove `fedora35` packaging targets
+* [libnvidia-container] Include all `gsp*.bin` firmware files if present
+* [libnvidia-container] Align `.deb` and `.rpm` release candidate package versions
+* [libnvidia-container] Remove `fedora35` packaging targets
+* [toolkit-container] Install `nvidia-container-toolkit-operator-extensions` package for mode-specific executables.
+* [toolkit-container] Allow `nvidia-container-runtime.mode` to be set when configuring the NVIDIA Container Toolkit
+
+## v1.12.0
+
+* Promote `v1.12.0-rc.5` to `v1.12.0`
+* Rename `nvidia cdi generate` `--root` flag to `--driver-root` to better indicate intent
+* [libnvidia-container] Add nvcubins.bin to DriverStore components under WSL2
+* [toolkit-container] Bump CUDA base images to 12.0.1
+
+## v1.12.0-rc.5
+
+* Fix bug here the `nvidia-ctk` path was not properly resolved. This causes failures to run containers when the runtime is configured in `csv` mode or if the `NVIDIA_DRIVER_CAPABILITIES` includes `graphics` or `display` (e.g. `all`).
+
+## v1.12.0-rc.4
+
+* Generate a minimum CDI spec version for improved compatibility.
+* Add `--device-name-strategy` options to the `nvidia-ctk cdi generate` command that can be used to control how device names are constructed.
+* Set default for CDI device name generation to `index` to generate device names such as `nvidia.com/gpu=0` or `nvidia.com/gpu=1:0` by default.
+
+## v1.12.0-rc.3
+
+* Don't fail if by-path symlinks for DRM devices do not exist
+* Replace the --json flag with a --format [json|yaml] flag for the nvidia-ctk cdi generate command
+* Ensure that the CDI output folder is created if required
+* When generating a CDI specification use a blank host path for devices to ensure compatibility with the v0.4.0 CDI specification
+* Add injection of Wayland JSON files
+* Add GSP firmware paths to generated CDI specification
+* Add --root flag to nvidia-ctk cdi generate command
+
+## v1.12.0-rc.2
+
+* Inject Direct Rendering Manager (DRM) devices into a container using the NVIDIA Container Runtime
+* Improve logging of errors from the NVIDIA Container Runtime
+* Improve CDI specification generation to support rootless podman
+* Use `nvidia-ctk cdi generate` to generate CDI specifications instead of `nvidia-ctk info generate-cdi`
+* [libnvidia-container] Skip creation of existing files when these are already mounted
+
+## v1.12.0-rc.1
+
+* Add support for multiple Docker Swarm resources
+* Improve injection of Vulkan configurations and libraries
+* Add `nvidia-ctk info generate-cdi` command to generated CDI specification for available devices
+* [libnvidia-container] Include NVVM compiler library in compute libs
+
+## v1.11.0
+
+* Promote v1.11.0-rc.3 to v1.11.0
+
+## v1.11.0-rc.3
+
+* Build fedora35 packages
+* Introduce an `nvidia-container-toolkit-base` package for better dependency management
+* Fix removal of `nvidia-container-runtime-hook` on RPM-based systems
+* Inject platform files into container on Tegra-based systems
+* [toolkit container] Update CUDA base images to 11.7.1
+* [libnvidia-container] Preload libgcc_s.so.1 on arm64 systems
+
+## v1.11.0-rc.2
+
+* Allow `accept-nvidia-visible-devices-*` config options to be set by toolkit container
+* [libnvidia-container] Fix bug where LDCache was not updated when the `--no-pivot-root` option was specified
+
+## v1.11.0-rc.1
+
+* Add discovery of GPUDirect Storage (`nvidia-fs*`) devices if the `NVIDIA_GDS` environment variable of the container is set to `enabled`
+* Add discovery of MOFED Infiniband devices if the `NVIDIA_MOFED` environment variable of the container is set to `enabled`
+* Fix bug in CSV mode where libraries listed as `sym` entries in mount specification are not added to the LDCache.
+* Rename `nvidia-container-toolkit` executable to `nvidia-container-runtime-hook` and create `nvidia-container-toolkit` as a symlink to `nvidia-container-runtime-hook` instead.
+* Add `nvidia-ctk runtime configure` command to configure the Docker config file (e.g. `/etc/docker/daemon.json`) for use with the NVIDIA Container Runtime.
+
+## v1.10.0
+
+* Promote v1.10.0-rc.3 to v1.10.0
+
+## v1.10.0-rc.3
+
+* Use default config instead of raising an error if config file cannot be found
+* Ignore NVIDIA_REQUIRE_JETPACK* environment variables for requirement checks
+* Fix bug in detection of Tegra systems where `/sys/devices/soc0/family` is ignored
+* Fix bug where links to devices were detected as devices
+* [libnvida-container] Fix bug introduced when adding libcudadebugger.so to list of libraries
+
+## v1.10.0-rc.2
+
+* Add support for NVIDIA_REQUIRE_* checks for cuda version and arch to csv mode
+* Switch to debug logging to reduce log verbosity
+* Support logging to logs requested in command line
+* Fix bug when launching containers with relative root path (e.g. using containerd)
+* Allow low-level runtime path to be set explicitly as nvidia-container-runtime.runtimes option
+* Fix failure to locate low-level runtime if PATH envvar is unset
+* Replace experimental option for NVIDIA Container Runtime with nvidia-container-runtime.mode = csv option
+* Use csv as default mode on Tegra systems without NVML
+* Add --version flag to all CLIs
+* [libnvidia-container] Bump libtirpc to 1.3.2
+* [libnvidia-container] Fix bug when running host ldconfig using glibc compiled with a non-standard prefix
+* [libnvidia-container] Add libcudadebugger.so to list of compute libraries
+
+## v1.10.0-rc.1
+
+* Include nvidia-ctk CLI in installed binaries
+* Add experimental option to NVIDIA Container Runtime
+
+## v1.9.0
+
+* [libnvidia-container] Add additional check for Tegra in /sys/.../family file in CLI
+* [libnvidia-container] Update jetpack-specific CLI option to only load Base CSV files by default
+* [libnvidia-container] Fix bug (from 1.8.0) when mounting GSP firmware into containers without /lib to /usr/lib symlinks
+* [libnvidia-container] Update nvml.h to CUDA 11.6.1 nvML_DEV 11.6.55
+* [libnvidia-container] Update switch statement to include new brands from latest nvml.h
+* [libnvidia-container] Process all --require flags on Jetson platforms
+* [libnvidia-container] Fix long-standing issue with running ldconfig on Debian systems
+
+## v1.8.1
+
+* [libnvidia-container] Fix bug in determining cgroup root when running in nested containers
+* [libnvidia-container] Fix permission issue when determining cgroup version
+
+## v1.8.0
+
+* Promote 1.8.0-rc.2-1 to 1.8.0
+
+## v1.8.0-rc.2
+
+* Remove support for building amazonlinux1 packages
+
+## v1.8.0-rc.1
+
+* [libnvidia-container] Add support for cgroupv2
+* Release toolkit-container images from nvidia-container-toolkit repository
+
+## v1.7.0
+
+* Promote 1.7.0-rc.1-1 to 1.7.0
+ * Bump Golang version to 1.16.4
+
+## v1.7.0-rc.1
+
+* Specify containerd runtime type as string in config tools to remove dependency on containerd package
+* Add supported-driver-capabilities config option to allow for a subset of all driver capabilities to be specified
+
+## v1.6.0
+
+* Promote 1.6.0-rc.3-1 to 1.6.0
+ * Fix unnecessary logging to stderr instead of configured nvidia-container-runtime log file
+
+## v1.6.0-rc.3
+
+* Add supported-driver-capabilities config option to the nvidia-container-toolkit
+* Move OCI and command line checks for runtime to internal oci package
+
+## v1.6.0-rc.2
+
+* Use relative path to OCI specification file (config.json) if bundle path is not specified as an argument to the nvidia-container-runtime
+
+## v1.6.0-rc.1
+
+* Add AARCH64 package for Amazon Linux 2
+* Include nvidia-container-runtime into nvidia-container-toolkit package
+
+## v1.5.1
+
+* Fix bug where Docker Swarm device selection is ignored if NVIDIA_VISIBLE_DEVICES is also set
+* Improve unit testing by using require package and adding coverage reports
+* Remove unneeded go dependencies by running go mod tidy
+* Move contents of pkg directory to cmd for CLI tools
+* Ensure make binary target explicitly sets GOOS
+
+## v1.5.0
+
+* Add dependence on libnvidia-container-tools >= 1.4.0
+* Add golang check targets to Makefile
+* Add Jenkinsfile definition for build targets
+* Move docker.mk to docker folder
+
+## v1.4.2
+
+* Add dependence on libnvidia-container-tools >= 1.3.3
+
+## v1.4.1
+
+* Ignore NVIDIA_VISIBLE_DEVICES for containers with insufficent privileges
+* Add dependence on libnvidia-container-tools >= 1.3.2
+
+## v1.4.0
+
+* Add 'compute' capability to list of defaults
+* Add dependence on libnvidia-container-tools >= 1.3.1
+
+## v1.3.0
+
+* Promote 1.3.0-rc.2-1 to 1.3.0
+* Add dependence on libnvidia-container-tools >= 1.3.0
+
+## v1.3.0-rc.2
+
+* 2c180947 Add more tests for new semantics with device list from volume mounts
+* 7c003857 Refactor accepting device lists from volume mounts as a boolean
+
+## v1.3.0-rc.1
+
+* b50d86c1 Update build system to accept a TAG variable for things like rc.x
+* fe65573b Add common CI tests for things like golint, gofmt, unit tests, etc.
+* da6fbb34 Revert "Add ability to merge envars of the form NVIDIA_VISIBLE_DEVICES_*"
+* a7fb3330 Flip build-all targets to run automatically on merge requests
+* 8b248b66 Rename github.com/NVIDIA/container-toolkit to nvidia-container-toolkit
+* da36874e Add new config options to pull device list from mounted files instead of ENVVAR
+
+## v1.2.1
+
+* 4e6e0ed4 Add 'ngx' to list of*all* driver capabilities
+* 2f4af743 List config.toml as a config file in the RPM SPEC
+
+## v1.2.0
+
+*  8e0aab46 Fix repo listed in changelog for debian distributions
+*  320bb6e4 Update dependence on libnvidia-container to 1.2.0
+*  6cfc8097 Update package license to match source license
+*  e7dc3cbb Fix debian copyright file
+*  d3aee3e0 Add the 'ngx' driver capability
+
+## v1.1.2
+
+* c32237f3 Add support for parsing Linux Capabilities for older OCI specs
+
+## v1.1.1
+
+* d202aded Update dependence to libnvidia-container 1.1.1
+
+## v1.1.0
+
+* 4e4de762 Update build system to support multi-arch builds
+* fcc1d116 Add support for MIG (Multi-Instance GPUs)
+* d4ff0416 Add ability to merge envars of the form NVIDIA_VISIBLE_DEVICES_*
+* 60f165ad Add no-pivot option to toolkit
+
+## v1.0.5
+
+* Initial release. Replaces older package nvidia-container-runtime-hook. (Closes: #XXXXXX)

DEVELOPMENT.md

@@ -13,7 +13,7 @@ The `nvidia-container-toolkit` resides in this repo directly.
 
 In oder to build the packages, the following command is executed
 ```sh
-./scripts/build-all-components.sh TARGET
+./scripts/build-packages.sh TARGET
 ```
 where `TARGET` is a make target that is valid for each of the sub-components.
 
@@ -21,6 +21,8 @@ These include:
 * `ubuntu18.04-amd64`
 * `centos8-x86_64`
 
+If no `TARGET` is specified, all valid release targets are built.
+
 The packages are generated in the `dist` folder.
 
 ## Testing local changes
@@ -37,9 +39,23 @@ The [test/release](./test/release/) folder contains documentation on how the ins
 
 ## Releasing
 
-A utility script [`scripts/release.sh`](./scripts/release.sh) is provided to build
-packages required for release. If run without arguments, all supported distribution-architecture combinations are built. A specific distribution-architecture pair can also be provided
-```sh
-./scripts/release.sh ubuntu18.04-amd64
+In order to release packages required for a release, a utility script
+[`scripts/release-packages.sh`](./scripts/release-packages.sh) is provided.
+This script can be executed as follows:
+
+```bash
+GPG_LOCAL_USER="GPG_USER" \
+MASTER_KEY_PATH=/path/to/gpg-master.key \
+SUB_KEY_PATH=/path/to/gpg-subkey.key \
+    ./scripts/release-packages.sh REPO PACKAGE_REPO_ROOT [REFERENCE]
 ```
-where the `amd64` builds for `ubuntu18.04` are provided as an example.
+
+Where `REPO` is one of `stable` or `experimental`, `PACKAGE_REPO_ROOT` is the local path to the `libnvidia-container` repository checked out to the `gh-pages` branch, and `REFERENCE` is the git SHA that is to be released. If reference is not specified `HEAD` is assumed.
+
+This scripts performs the following basic functions:
+* Pulls the package image defined by the `REFERENCE` git SHA from the staging registry,
+* Copies the required packages to the package repository at `PACKAGE_REPO_ROOT/REPO`,
+* Signs the packages using the specified GPG keys
+
+While the last two are performed, commits are added to the package repository. These can be pushed to the relevant repository.
+

Makefile

@@ -38,16 +38,21 @@ EXAMPLE_TARGETS := $(patsubst %,example-%, $(EXAMPLES))
 CMDS := $(patsubst ./cmd/%/,%,$(sort $(dir $(wildcard ./cmd/*/))))
 CMD_TARGETS := $(patsubst %,cmd-%, $(CMDS))
 
-$(info CMD_TARGETS=$(CMD_TARGETS))
-
-CHECK_TARGETS := assert-fmt vet lint ineffassign misspell
-MAKE_TARGETS := binaries build check fmt lint-internal test examples cmds coverage generate $(CHECK_TARGETS)
+CHECK_TARGETS := golangci-lint
+MAKE_TARGETS := binaries build check fmt lint-internal test examples cmds coverage generate licenses $(CHECK_TARGETS)
 
 TARGETS := $(MAKE_TARGETS) $(EXAMPLE_TARGETS) $(CMD_TARGETS)
 
 DOCKER_TARGETS := $(patsubst %,docker-%, $(TARGETS))
 .PHONY: $(TARGETS) $(DOCKER_TARGETS)
 
+ifeq ($(VERSION),)
+CLI_VERSION = $(LIB_VERSION)$(if $(LIB_TAG),-$(LIB_TAG))
+else
+CLI_VERSION = $(VERSION)
+endif
+CLI_VERSION_PACKAGE = github.com/NVIDIA/nvidia-container-toolkit/internal/info
+
 GOOS ?= linux
 
 binaries: cmds
@@ -56,7 +61,7 @@ cmd-%: COMMAND_BUILD_OPTIONS = -o $(PREFIX)/$(*)
 endif
 cmds: $(CMD_TARGETS)
 $(CMD_TARGETS): cmd-%:
-	GOOS=$(GOOS) go build -ldflags "-s -w" $(COMMAND_BUILD_OPTIONS) $(MODULE)/cmd/$(*)
+	GOOS=$(GOOS) go build -ldflags "-extldflags=-Wl,-z,lazy -s -w -X $(CLI_VERSION_PACKAGE).gitCommit=$(GIT_COMMIT) -X $(CLI_VERSION_PACKAGE).version=$(CLI_VERSION)" $(COMMAND_BUILD_OPTIONS) $(MODULE)/cmd/$(*)
 
 build:
 	GOOS=$(GOOS) go build ./...
@@ -73,34 +78,16 @@ fmt:
 	go list -f '{{.Dir}}' $(MODULE)/... \
 		| xargs gofmt -s -l -w
 
-assert-fmt:
-	go list -f '{{.Dir}}' $(MODULE)/... \
-		| xargs gofmt -s -l > fmt.out
-	@if [ -s fmt.out ]; then \
-		echo "\nERROR: The following files are not formatted:\n"; \
-		cat fmt.out; \
-		rm fmt.out; \
-		exit 1; \
-	else \
-		rm fmt.out; \
-	fi
+# Apply goimports -local github.com/NVIDIA/container-toolkit to the codebase
+goimports:
+	go list -f {{.Dir}} $(MODULE)/... \
+		| xargs goimports -local $(MODULE) -w
 
-ineffassign:
-	ineffassign $(MODULE)/...
+golangci-lint:
+	golangci-lint run ./...
 
-lint:
-# We use `go list -f '{{.Dir}}' $(MODULE)/...` to skip the `vendor` folder.
-	go list -f '{{.Dir}}' $(MODULE)/... | grep -v /internal/ | xargs golint -set_exit_status
-
-lint-internal:
-# We use `go list -f '{{.Dir}}' $(MODULE)/...` to skip the `vendor` folder.
-	go list -f '{{.Dir}}' $(MODULE)/internal/... | xargs golint -set_exit_status
-
-misspell:
-	misspell $(MODULE)/...
-
-vet:
-	go vet $(MODULE)/...
+licenses:
+	go-licenses csv $(MODULE)/...
 
 COVERAGE_FILE := coverage.out
 test: build cmds
@@ -137,8 +124,22 @@ $(DOCKER_TARGETS): docker-%: .build-image
 	$(DOCKER) run \
 		--rm \
 		-e GOCACHE=/tmp/.cache \
-		-v $(PWD):$(PWD) \
-		-w $(PWD) \
+		-e GOLANGCI_LINT_CACHE=/tmp/.cache \
+		-v $(PWD):/work \
+		-w /work \
 		--user $$(id -u):$$(id -g) \
 		$(BUILDIMAGE) \
 			make $(*)
+
+# Start an interactive shell using the development image.
+PHONY: .shell
+.shell:
+	$(DOCKER) run \
+		--rm \
+		-ti \
+		-e GOCACHE=/tmp/.cache \
+		-e GOLANGCI_LINT_CACHE=/tmp/.cache \
+		-v $(PWD):/work \
+		-w /work \
+		--user $$(id -u):$$(id -g) \
+		$(BUILDIMAGE)

README.md

@@ -1,6 +1,6 @@
 # NVIDIA Container Toolkit
 
-[![GitHub license](https://img.shields.io/github/license/NVIDIA/nvidia-container-toolkit?style=flat-square)](https://raw.githubusercontent.com/NVIDIA/nvidia-container-toolkit/master/LICENSE)
+[![GitHub license](https://img.shields.io/github/license/NVIDIA/nvidia-container-toolkit?style=flat-square)](https://raw.githubusercontent.com/NVIDIA/nvidia-container-toolkit/main/LICENSE)
 [![Documentation](https://img.shields.io/badge/documentation-wiki-blue.svg?style=flat-square)](https://docs.nvidia.com/datacenter/cloud-native/container-toolkit/overview.html)
 [![Package repository](https://img.shields.io/badge/packages-repository-b956e8.svg?style=flat-square)](https://nvidia.github.io/libnvidia-container)
 

build/container/Dockerfile.centos

@@ -17,19 +17,29 @@ ARG CUDA_VERSION
 ARG GOLANG_VERSION=x.x.x
 ARG VERSION="N/A"
 
-# NOTE: In cases where the libc version is a concern, we would have to use an
-# image based on the target OS to build the golang executables here -- especially
-# if cgo code is included.
-FROM golang:${GOLANG_VERSION} as build
+FROM nvidia/cuda:${CUDA_VERSION}-base-${BASE_DIST} as build
 
-# We override the GOPATH to ensure that the binaries are installed to
-# /artifacts/bin
-ARG GOPATH=/artifacts
+RUN yum install -y \
+    wget make git gcc \
+     && \
+    rm -rf /var/cache/yum/*
 
-# Install the experiemental nvidia-container-runtime
-# NOTE: This will be integrated into the nvidia-container-toolkit package / repo
-ARG NVIDIA_CONTAINER_RUNTIME_EXPERIMENTAL_VERSION=experimental
-RUN GOPATH=/artifacts go install github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-container-runtime.experimental@${NVIDIA_CONTAINER_RUNTIME_EXPERIMENTAL_VERSION}
+ARG GOLANG_VERSION=x.x.x
+RUN set -eux; \
+    \
+    arch="$(uname -m)"; \
+    case "${arch##*-}" in \
+        x86_64 | amd64) ARCH='amd64' ;; \
+        ppc64el | ppc64le) ARCH='ppc64le' ;; \
+        aarch64) ARCH='arm64' ;; \
+        *) echo "unsupported architecture" ; exit 1 ;; \
+    esac; \
+    wget -nv -O - https://storage.googleapis.com/golang/go${GOLANG_VERSION}.linux-${ARCH}.tar.gz \
+    | tar -C /usr/local -xz
+
+
+ENV GOPATH /go
+ENV PATH $GOPATH/bin:/usr/local/go/bin:$PATH
 
 WORKDIR /build
 COPY . .
@@ -53,7 +63,7 @@ RUN [[ "${BASE_DIST}" != "centos8" ]] || \
     )
 
 ENV NVIDIA_DISABLE_REQUIRE="true"
-ENV NVIDIA_VISIBLE_DEVICES=all
+ENV NVIDIA_VISIBLE_DEVICES=void
 ENV NVIDIA_DRIVER_CAPABILITIES=utility
 
 ARG ARTIFACTS_ROOT
@@ -67,9 +77,9 @@ ARG TARGETARCH
 ENV PACKAGE_ARCH ${TARGETARCH}
 RUN PACKAGE_ARCH=${PACKAGE_ARCH/amd64/x86_64} && PACKAGE_ARCH=${PACKAGE_ARCH/arm64/aarch64} && \
     yum localinstall -y \
-    ${PACKAGE_DIST}/${PACKAGE_ARCH}/libnvidia-container1-${PACKAGE_VERSION}*.rpm \
-    ${PACKAGE_DIST}/${PACKAGE_ARCH}/libnvidia-container-tools-${PACKAGE_VERSION}*.rpm \
-    ${PACKAGE_DIST}/${PACKAGE_ARCH}/nvidia-container-toolkit-${PACKAGE_VERSION}*.rpm
+    ${PACKAGE_DIST}/${PACKAGE_ARCH}/libnvidia-container1-1.*.rpm \
+    ${PACKAGE_DIST}/${PACKAGE_ARCH}/libnvidia-container-tools-1.*.rpm \
+    ${PACKAGE_DIST}/${PACKAGE_ARCH}/nvidia-container-toolkit*-${PACKAGE_VERSION}*.rpm
 
 WORKDIR /work
 
@@ -85,13 +95,6 @@ LABEL release="N/A"
 LABEL summary="Automatically Configure your Container Runtime for GPU support."
 LABEL description="See summary"
 
-COPY ./LICENSE /licenses/LICENSE
-
-# Install / upgrade packages here that are required to resolve CVEs
-ARG CVE_UPDATES
-RUN if [ -n "${CVE_UPDATES}" ]; then \
-        yum update -y ${CVE_UPDATES} && \
-        rm -rf /var/cache/yum/*; \
-    fi
+RUN mkdir /licenses && mv /NGC-DL-CONTAINER-LICENSE /licenses/NGC-DL-CONTAINER-LICENSE
 
 ENTRYPOINT ["/work/nvidia-toolkit"]

build/container/Dockerfile.packaging

@@ -15,15 +15,27 @@
 ARG BASE_DIST
 ARG CUDA_VERSION
 ARG GOLANG_VERSION=x.x.x
-ARG VERSION="N/A"
 
 FROM nvidia/cuda:${CUDA_VERSION}-base-${BASE_DIST}
 
-ENV NVIDIA_CONTAINER_TOOLKIT_VERSION="${VERSION}"
-
 ARG ARTIFACTS_ROOT
 COPY ${ARTIFACTS_ROOT} /artifacts/packages/
 
 WORKDIR /artifacts/packages
 
-COPY ./LICENSE /licenses/LICENSE
+# build-args are added to the manifest.txt file below.
+ARG BASE_DIST
+ARG PACKAGE_DIST
+ARG PACKAGE_VERSION
+ARG GIT_BRANCH
+ARG GIT_COMMIT
+ARG GIT_COMMIT_SHORT
+ARG SOURCE_DATE_EPOCH
+ARG VERSION
+
+# Create a manifest.txt file with the absolute paths of all deb and rpm packages in the container
+RUN echo "#IMAGE_EPOCH=$(date '+%s')" > /artifacts/manifest.txt && \
+    env | sed 's/^/#/g' >> /artifacts/manifest.txt && \
+    find /artifacts/packages -iname '*.deb' -o -iname '*.rpm' >> /artifacts/manifest.txt
+
+RUN mkdir /licenses && mv /NGC-DL-CONTAINER-LICENSE /licenses/NGC-DL-CONTAINER-LICENSE

build/container/Dockerfile.ubuntu

@@ -17,19 +17,28 @@ ARG CUDA_VERSION
 ARG GOLANG_VERSION=x.x.x
 ARG VERSION="N/A"
 
-# NOTE: In cases where the libc version is a concern, we would have to use an
-# image based on the target OS to build the golang executables here -- especially
-# if cgo code is included.
-FROM golang:${GOLANG_VERSION} as build
+FROM nvidia/cuda:${CUDA_VERSION}-base-${BASE_DIST} as build
 
-# We override the GOPATH to ensure that the binaries are installed to
-# /artifacts/bin
-ARG GOPATH=/artifacts
+RUN apt-get update && \
+    apt-get install -y wget make git gcc \
+    && \
+    rm -rf /var/lib/apt/lists/*
 
-# Install the experiemental nvidia-container-runtime
-# NOTE: This will be integrated into the nvidia-container-toolkit package / repo
-ARG NVIDIA_CONTAINER_RUNTIME_EXPERIMENTAL_VERSION=experimental
-RUN GOPATH=/artifacts go install github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-container-runtime.experimental@${NVIDIA_CONTAINER_RUNTIME_EXPERIMENTAL_VERSION}
+ARG GOLANG_VERSION=x.x.x
+RUN set -eux; \
+    \
+    arch="$(uname -m)"; \
+    case "${arch##*-}" in \
+        x86_64 | amd64) ARCH='amd64' ;; \
+        ppc64el | ppc64le) ARCH='ppc64le' ;; \
+        aarch64) ARCH='arm64' ;; \
+        *) echo "unsupported architecture" ; exit 1 ;; \
+    esac; \
+    wget -nv -O - https://storage.googleapis.com/golang/go${GOLANG_VERSION}.linux-${ARCH}.tar.gz \
+    | tar -C /usr/local -xz
+
+ENV GOPATH /go
+ENV PATH $GOPATH/bin:/usr/local/go/bin:$PATH
 
 WORKDIR /build
 COPY . .
@@ -42,6 +51,9 @@ RUN GOPATH=/artifacts go install -ldflags="-s -w -X 'main.Version=${VERSION}'" .
 
 FROM nvcr.io/nvidia/cuda:${CUDA_VERSION}-base-${BASE_DIST}
 
+# Remove the CUDA repository configurations to avoid issues with rotated GPG keys
+RUN rm -f /etc/apt/sources.list.d/cuda.list
+
 ARG DEBIAN_FRONTEND=noninteractive
 RUN apt-get update && apt-get install -y --no-install-recommends \
     libcap2 \
@@ -50,7 +62,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     rm -rf /var/lib/apt/lists/*
 
 ENV NVIDIA_DISABLE_REQUIRE="true"
-ENV NVIDIA_VISIBLE_DEVICES=all
+ENV NVIDIA_VISIBLE_DEVICES=void
 ENV NVIDIA_DRIVER_CAPABILITIES=utility
 
 ARG ARTIFACTS_ROOT
@@ -63,7 +75,7 @@ ARG PACKAGE_VERSION
 ARG TARGETARCH
 ENV PACKAGE_ARCH ${TARGETARCH}
 
-ARG LIBNVIDIA_CONTAINER_REPO="https://nvidia.github.io/libnvidia-container"
+ARG LIBNVIDIA_CONTAINER_REPO="https://nvidia.github.io/libnvidia-container/stable"
 ARG LIBNVIDIA_CONTAINER0_VERSION
 RUN if [ "${PACKAGE_ARCH}" = "arm64" ]; then \
         curl -L ${LIBNVIDIA_CONTAINER_REPO}/${PACKAGE_DIST}/${PACKAGE_ARCH}/libnvidia-container0_${LIBNVIDIA_CONTAINER0_VERSION}_${PACKAGE_ARCH}.deb \
@@ -72,9 +84,9 @@ RUN if [ "${PACKAGE_ARCH}" = "arm64" ]; then \
     fi
 
 RUN dpkg -i \
-    ${PACKAGE_DIST}/${PACKAGE_ARCH}/libnvidia-container1_${PACKAGE_VERSION}*.deb \
-    ${PACKAGE_DIST}/${PACKAGE_ARCH}/libnvidia-container-tools_${PACKAGE_VERSION}*.deb \
-    ${PACKAGE_DIST}/${PACKAGE_ARCH}/nvidia-container-toolkit_${PACKAGE_VERSION}*.deb
+    ${PACKAGE_DIST}/${PACKAGE_ARCH}/libnvidia-container1_1.*.deb \
+    ${PACKAGE_DIST}/${PACKAGE_ARCH}/libnvidia-container-tools_1.*.deb \
+    ${PACKAGE_DIST}/${PACKAGE_ARCH}/nvidia-container-toolkit*_${PACKAGE_VERSION}*.deb
 
 WORKDIR /work
 
@@ -90,13 +102,6 @@ LABEL release="N/A"
 LABEL summary="Automatically Configure your Container Runtime for GPU support."
 LABEL description="See summary"
 
-COPY ./LICENSE /licenses/LICENSE
-
-# Install / upgrade packages here that are required to resolve CVEs
-ARG CVE_UPDATES
-RUN if [ -n "${CVE_UPDATES}" ]; then \
-        apt-get update && apt-get upgrade -y ${CVE_UPDATES} && \
-        rm -rf /var/lib/apt/lists/*; \
-    fi
+RUN mkdir /licenses && mv /NGC-DL-CONTAINER-LICENSE /licenses/NGC-DL-CONTAINER-LICENSE
 
 ENTRYPOINT ["/work/nvidia-toolkit"]

build/container/Makefile

@@ -14,6 +14,7 @@
 
 BUILD_MULTI_ARCH_IMAGES ?= false
 DOCKER ?= docker
+REGCTL ?= regctl
 
 BUILDX =
 ifeq ($(BUILD_MULTI_ARCH_IMAGES),true)
@@ -43,14 +44,14 @@ OUT_IMAGE_TAG = $(OUT_IMAGE_VERSION)-$(DIST)
 OUT_IMAGE = $(OUT_IMAGE_NAME):$(OUT_IMAGE_TAG)
 
 ##### Public rules #####
-DEFAULT_PUSH_TARGET := ubuntu18.04
-DISTRIBUTIONS := ubuntu20.04 ubuntu18.04 ubi8 centos7 centos8
+DEFAULT_PUSH_TARGET := ubuntu20.04
+DISTRIBUTIONS := ubuntu20.04 ubi8 centos7
 
 META_TARGETS := packaging
 
 BUILD_TARGETS := $(patsubst %,build-%,$(DISTRIBUTIONS) $(META_TARGETS))
 PUSH_TARGETS := $(patsubst %,push-%,$(DISTRIBUTIONS) $(META_TARGETS))
-TEST_TARGETS := $(patsubst %,test-%, $(DISTRIBUTIONS))
+TEST_TARGETS := $(patsubst %,test-%,$(DISTRIBUTIONS))
 
 .PHONY: $(DISTRIBUTIONS) $(PUSH_TARGETS) $(BUILD_TARGETS) $(TEST_TARGETS)
 
@@ -74,6 +75,14 @@ endif
 push-%: DIST = $(*)
 push-short: DIST = $(DEFAULT_PUSH_TARGET)
 
+# Define the push targets
+$(PUSH_TARGETS): push-%:
+	$(CURDIR)/scripts/publish-image.sh $(IMAGE) $(OUT_IMAGE)
+
+push-short:
+	$(CURDIR)/scripts/publish-image.sh $(IMAGE) $(OUT_IMAGE)
+
+
 build-%: DIST = $(*)
 build-%: DOCKERFILE = $(CURDIR)/build/container/Dockerfile.$(DOCKERFILE_SUFFIX)
 
@@ -94,7 +103,10 @@ $(BUILD_TARGETS): build-%: $(ARTIFACTS_ROOT)
 		--build-arg PACKAGE_DIST="$(PACKAGE_DIST)" \
 		--build-arg PACKAGE_VERSION="$(PACKAGE_VERSION)" \
 		--build-arg VERSION="$(VERSION)" \
-		--build-arg CVE_UPDATES="$(CVE_UPDATES)" \
+		--build-arg GIT_COMMIT="$(GIT_COMMIT)" \
+		--build-arg GIT_COMMIT_SHORT="$(GIT_COMMIT_SHORT)" \
+		--build-arg GIT_BRANCH="$(GIT_BRANCH)" \
+		--build-arg SOURCE_DATE_EPOCH="$(SOURCE_DATE_EPOCH)" \
 		-f $(DOCKERFILE) \
 		$(CURDIR)
 
@@ -102,24 +114,20 @@ $(BUILD_TARGETS): build-%: $(ARTIFACTS_ROOT)
 build-ubuntu%: BASE_DIST = $(*)
 build-ubuntu%: DOCKERFILE_SUFFIX := ubuntu
 build-ubuntu%: PACKAGE_DIST = ubuntu18.04
-build-ubuntu%: PACKAGE_VERSION := $(LIB_VERSION)$(if $(LIB_TAG),~$(LIB_TAG))
 build-ubuntu%: LIBNVIDIA_CONTAINER0_DEPENDENCY=$(LIBNVIDIA_CONTAINER0_VERSION)
 
 build-ubi8: BASE_DIST := ubi8
 build-ubi8: DOCKERFILE_SUFFIX := centos
-build-ubi8: PACKAGE_DIST = centos8
-build-ubi8: PACKAGE_VERSION := $(LIB_VERSION)-$(if $(LIB_TAG),0.1.$(LIB_TAG),1)
+build-ubi8: PACKAGE_DIST = centos7
 
-build-centos%: BASE_DIST = $(*)
-build-centos%: DOCKERFILE_SUFFIX := centos
-build-centos%: PACKAGE_DIST = $(BASE_DIST)
-build-centos%: PACKAGE_VERSION := $(LIB_VERSION)-$(if $(LIB_TAG),0.1.$(LIB_TAG),1)
+build-centos7: BASE_DIST = $(*)
+build-centos7: DOCKERFILE_SUFFIX := centos
+build-centos7: PACKAGE_DIST = $(BASE_DIST)
 
 build-packaging: BASE_DIST := ubuntu20.04
 build-packaging: DOCKERFILE_SUFFIX := packaging
 build-packaging: PACKAGE_ARCH := amd64
 build-packaging: PACKAGE_DIST = all
-build-packaging: PACKAGE_VERSION := $(LIB_VERSION)$(if $(LIB_TAG),-$(LIB_TAG))
 
 # Test targets
 test-%: DIST = $(*)
@@ -135,18 +143,11 @@ $(TEST_TARGETS): test-%:
 test-packaging: DIST = packaging
 test-packaging:
 	@echo "Testing package image contents"
-	@$(DOCKER) run --rm $(IMAGE) test -d "/artifacts/packages/amazonlinux2/aarch64" || echo "Missing amazonlinux2/aarch64"
-	@$(DOCKER) run --rm $(IMAGE) test -d "/artifacts/packages/amazonlinux2/x86_64" || echo "Missing amazonlinux2/x86_64"
-	@$(DOCKER) run --rm $(IMAGE) test -d "/artifacts/packages/centos7/ppc64le" || echo "Missing centos7/ppc64le"
+	@$(DOCKER) run --rm $(IMAGE) test -d "/artifacts/packages/centos7/aarch64" || echo "Missing centos7/aarch64"
 	@$(DOCKER) run --rm $(IMAGE) test -d "/artifacts/packages/centos7/x86_64" || echo "Missing centos7/x86_64"
 	@$(DOCKER) run --rm $(IMAGE) test -d "/artifacts/packages/centos8/aarch64" || echo "Missing centos8/aarch64"
 	@$(DOCKER) run --rm $(IMAGE) test -d "/artifacts/packages/centos8/ppc64le" || echo "Missing centos8/ppc64le"
 	@$(DOCKER) run --rm $(IMAGE) test -d "/artifacts/packages/centos8/x86_64" || echo "Missing centos8/x86_64"
-	@$(DOCKER) run --rm $(IMAGE) test -d "/artifacts/packages/debian10/amd64" || echo "Missing debian10/amd64"
-	@$(DOCKER) run --rm $(IMAGE) test -d "/artifacts/packages/debian9/amd64" || echo "Missing debian9/amd64"
-	@$(DOCKER) run --rm $(IMAGE) test -d "/artifacts/packages/opensuse-leap15.1/x86_64" || echo "Missing opensuse-leap15.1/x86_64"
-	@$(DOCKER) run --rm $(IMAGE) test -d "/artifacts/packages/ubuntu16.04/amd64" || echo "Missing ubuntu16.04/amd64"
-	@$(DOCKER) run --rm $(IMAGE) test -d "/artifacts/packages/ubuntu16.04/ppc64le" || echo "Missing ubuntu16.04/ppc64le"
 	@$(DOCKER) run --rm $(IMAGE) test -d "/artifacts/packages/ubuntu18.04/amd64" || echo "Missing ubuntu18.04/amd64"
 	@$(DOCKER) run --rm $(IMAGE) test -d "/artifacts/packages/ubuntu18.04/arm64" || echo "Missing ubuntu18.04/arm64"
 	@$(DOCKER) run --rm $(IMAGE) test -d "/artifacts/packages/ubuntu18.04/ppc64le" || echo "Missing ubuntu18.04/ppc64le"

build/container/multi-arch.mk

@@ -16,19 +16,11 @@ PUSH_ON_BUILD ?= false
 DOCKER_BUILD_OPTIONS = --output=type=image,push=$(PUSH_ON_BUILD)
 DOCKER_BUILD_PLATFORM_OPTIONS = --platform=linux/amd64,linux/arm64
 
-REGCTL ?= regctl
-$(PUSH_TARGETS): push-%:
-	$(REGCTL) \
-	        image copy \
-	        $(IMAGE) $(OUT_IMAGE)
-
-push-short:
-	$(REGCTL) \
-	        image copy \
-	        $(IMAGE) $(OUT_IMAGE_NAME):$(OUT_IMAGE_VERSION)
-
 # We only have x86_64 packages for centos7
 build-centos7: DOCKER_BUILD_PLATFORM_OPTIONS = --platform=linux/amd64
 
+# We only generate amd64 image for ubuntu18.04
+build-ubuntu18.04: DOCKER_BUILD_PLATFORM_OPTIONS = --platform=linux/amd64
+
 # We only generate a single image for packaging targets
 build-packaging: DOCKER_BUILD_PLATFORM_OPTIONS = --platform=linux/amd64

build/container/native-only.mk

@@ -13,11 +13,3 @@
 # limitations under the License.
 
 DOCKER_BUILD_PLATFORM_OPTIONS = --platform=linux/amd64
-
-$(PUSH_TARGETS): push-%:
-	$(DOCKER) tag "$(IMAGE)" "$(OUT_IMAGE)"
-	$(DOCKER) push "$(OUT_IMAGE)"
-
-push-short:
-	$(DOCKER) tag "$(IMAGE_NAME):$(VERSION)-$(DEFAULT_PUSH_TARGET)" "$(OUT_IMAGE_NAME):$(OUT_IMAGE_VERSION)"
-	$(DOCKER) push "$(OUT_IMAGE_NAME):$(OUT_IMAGE_VERSION)"

cmd/nvidia-container-runtime-hook/capabilities.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"log"
+)
+
+func capabilityToCLI(cap string) string {
+	switch cap {
+	case "compute":
+		return "--compute"
+	case "compat32":
+		return "--compat32"
+	case "graphics":
+		return "--graphics"
+	case "utility":
+		return "--utility"
+	case "video":
+		return "--video"
+	case "display":
+		return "--display"
+	case "ngx":
+		return "--ngx"
+	default:
+		log.Panicln("unknown driver capability:", cap)
+	}
+	return ""
+}

cmd/nvidia-container-runtime-hook/container_config.go

@@ -7,13 +7,13 @@ import (
 	"os"
 	"path"
 	"path/filepath"
-	"strconv"
 	"strings"
 
+	"github.com/opencontainers/runtime-spec/specs-go"
 	"golang.org/x/mod/semver"
-)
 
-var envSwarmGPU *string
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/config/image"
+)
 
 const (
 	envCUDAVersion          = "CUDA_VERSION"
@@ -39,14 +39,16 @@ type nvidiaConfig struct {
 	MigConfigDevices   string
 	MigMonitorDevices  string
 	DriverCapabilities string
-	Requirements       []string
-	DisableRequire     bool
+	// Requirements defines the requirements DSL for the container to run.
+	// This is empty if no specific requirements are needed, or if requirements are
+	// explicitly disabled.
+	Requirements []string
 }
 
 type containerConfig struct {
 	Pid    int
 	Rootfs string
-	Env    map[string]string
+	Image  image.CUDA
 	Nvidia *nvidiaConfig
 }
 
@@ -104,32 +106,6 @@ type HookState struct {
 	BundlePath string `json:"bundlePath"`
 }
 
-func parseCudaVersion(cudaVersion string) (vmaj, vmin, vpatch uint32) {
-	if _, err := fmt.Sscanf(cudaVersion, "%d.%d.%d\n", &vmaj, &vmin, &vpatch); err != nil {
-		vpatch = 0
-		if _, err := fmt.Sscanf(cudaVersion, "%d.%d\n", &vmaj, &vmin); err != nil {
-			vmin = 0
-			if _, err := fmt.Sscanf(cudaVersion, "%d\n", &vmaj); err != nil {
-				log.Panicln("invalid CUDA version:", cudaVersion)
-			}
-		}
-	}
-
-	return
-}
-
-func getEnvMap(e []string) (m map[string]string) {
-	m = make(map[string]string)
-	for _, s := range e {
-		p := strings.SplitN(s, "=", 2)
-		if len(p) != 2 {
-			log.Panicln("environment error")
-		}
-		m[p[0]] = p[1]
-	}
-	return
-}
-
 func loadSpec(path string) (spec *Spec) {
 	f, err := os.Open(path)
 	if err != nil {
@@ -158,7 +134,7 @@ func isPrivileged(s *Spec) bool {
 	}
 
 	var caps []string
-	// If v1.1.0-rc1 <= OCI version < v1.0.0-rc5 parse s.Process.Capabilities as:
+	// If v1.0.0-rc1 <= OCI version < v1.0.0-rc5 parse s.Process.Capabilities as:
 	// github.com/opencontainers/runtime-spec/blob/v1.0.0-rc1/specs-go/config.go#L30-L54
 	rc1cmp := semver.Compare("v"+*s.Version, "v1.0.0-rc1")
 	rc5cmp := semver.Compare("v"+*s.Version, "v1.0.0-rc5")
@@ -167,73 +143,58 @@ func isPrivileged(s *Spec) bool {
 		if err != nil {
 			log.Panicln("could not decode Process.Capabilities in OCI spec:", err)
 		}
-		// Otherwise, parse s.Process.Capabilities as:
-		// github.com/opencontainers/runtime-spec/blob/v1.0.0/specs-go/config.go#L30-L54
-	} else {
-		var lc LinuxCapabilities
-		err := json.Unmarshal(*s.Process.Capabilities, &lc)
-		if err != nil {
-			log.Panicln("could not decode Process.Capabilities in OCI spec:", err)
+		for _, c := range caps {
+			if c == capSysAdmin {
+				return true
+			}
 		}
-		// We only make sure that the bounding capabibility set has
-		// CAP_SYS_ADMIN. This allows us to make sure that the container was
-		// actually started as '--privileged', but also allow non-root users to
-		// access the privileged NVIDIA capabilities.
-		caps = lc.Bounding
+		return false
 	}
 
-	for _, c := range caps {
-		if c == capSysAdmin {
-			return true
-		}
+	// Otherwise, parse s.Process.Capabilities as:
+	// github.com/opencontainers/runtime-spec/blob/v1.0.0/specs-go/config.go#L30-L54
+	process := specs.Process{
+		Env: s.Process.Env,
 	}
 
-	return false
+	err := json.Unmarshal(*s.Process.Capabilities, &process.Capabilities)
+	if err != nil {
+		log.Panicln("could not decode Process.Capabilities in OCI spec:", err)
+	}
+
+	fullSpec := specs.Spec{
+		Version: *s.Version,
+		Process: &process,
+	}
+
+	return image.IsPrivileged(&fullSpec)
 }
 
-func isLegacyCUDAImage(env map[string]string) bool {
-	legacyCudaVersion := env[envCUDAVersion]
-	cudaRequire := env[envNVRequireCUDA]
-	return len(legacyCudaVersion) > 0 && len(cudaRequire) == 0
-}
-
-func getDevicesFromEnvvar(env map[string]string, legacyImage bool) *string {
-	// Build a list of envvars to consider.
-	envVars := []string{envNVVisibleDevices}
-	if envSwarmGPU != nil {
-		// The Swarm envvar has higher precedence.
-		envVars = append([]string{*envSwarmGPU}, envVars...)
-	}
-
-	// Grab a reference to devices from the first envvar
-	// in the list that actually exists in the environment.
-	var devices *string
-	for _, envVar := range envVars {
-		if devs, ok := env[envVar]; ok {
-			devices = &devs
+func getDevicesFromEnvvar(image image.CUDA, swarmResourceEnvvars []string) *string {
+	// We check if the image has at least one of the Swarm resource envvars defined and use this
+	// if specified.
+	var hasSwarmEnvvar bool
+	for _, envvar := range swarmResourceEnvvars {
+		if image.HasEnvvar(envvar) {
+			hasSwarmEnvvar = true
 			break
 		}
 	}
 
-	// Environment variable unset with legacy image: default to "all".
-	if devices == nil && legacyImage {
-		all := "all"
-		return &all
+	var devices []string
+	if hasSwarmEnvvar {
+		devices = image.DevicesFromEnvvars(swarmResourceEnvvars...).List()
+	} else {
+		devices = image.DevicesFromEnvvars(envNVVisibleDevices).List()
 	}
 
-	// Environment variable unset or empty or "void": return nil
-	if devices == nil || len(*devices) == 0 || *devices == "void" {
+	if len(devices) == 0 {
 		return nil
 	}
 
-	// Environment variable set to "none": reset to "".
-	if *devices == "none" {
-		empty := ""
-		return &empty
-	}
+	devicesString := strings.Join(devices, ",")
 
-	// Any other value.
-	return devices
+	return &devicesString
 }
 
 func getDevicesFromMounts(mounts []Mount) *string {
@@ -273,7 +234,7 @@ func getDevicesFromMounts(mounts []Mount) *string {
 	return &ret
 }
 
-func getDevices(hookConfig *HookConfig, env map[string]string, mounts []Mount, privileged bool, legacyImage bool) *string {
+func getDevices(hookConfig *HookConfig, image image.CUDA, mounts []Mount, privileged bool) *string {
 	// If enabled, try and get the device list from volume mounts first
 	if hookConfig.AcceptDeviceListAsVolumeMounts {
 		devices := getDevicesFromMounts(mounts)
@@ -283,7 +244,7 @@ func getDevices(hookConfig *HookConfig, env map[string]string, mounts []Mount, p
 	}
 
 	// Fallback to reading from the environment variable if privileges are correct
-	devices := getDevicesFromEnvvar(env, legacyImage)
+	devices := getDevicesFromEnvvar(image, hookConfig.getSwarmResourceEnvvars())
 	if devices == nil {
 		return nil
 	}
@@ -297,26 +258,31 @@ func getDevices(hookConfig *HookConfig, env map[string]string, mounts []Mount, p
 	return nil
 }
 
-func getMigConfigDevices(env map[string]string) *string {
-	if devices, ok := env[envNVMigConfigDevices]; ok {
-		return &devices
-	}
-	return nil
+func getMigConfigDevices(image image.CUDA) *string {
+	return getMigDevices(image, envNVMigConfigDevices)
 }
 
-func getMigMonitorDevices(env map[string]string) *string {
-	if devices, ok := env[envNVMigMonitorDevices]; ok {
-		return &devices
-	}
-	return nil
+func getMigMonitorDevices(image image.CUDA) *string {
+	return getMigDevices(image, envNVMigMonitorDevices)
 }
 
-func getDriverCapabilities(env map[string]string, supportedDriverCapabilities DriverCapabilities, legacyImage bool) DriverCapabilities {
+func getMigDevices(image image.CUDA, envvar string) *string {
+	if !image.HasEnvvar(envvar) {
+		return nil
+	}
+	devices := image.Getenv(envvar)
+	return &devices
+}
+
+func (c *HookConfig) getDriverCapabilities(cudaImage image.CUDA, legacyImage bool) image.DriverCapabilities {
 	// We use the default driver capabilities by default. This is filtered to only include the
 	// supported capabilities
-	capabilities := supportedDriverCapabilities.Intersection(defaultDriverCapabilities)
+	supportedDriverCapabilities := image.NewDriverCapabilities(c.SupportedDriverCapabilities)
 
-	capsEnv, capsEnvSpecified := env[envNVDriverCapabilities]
+	capabilities := supportedDriverCapabilities.Intersection(image.DefaultDriverCapabilities)
+
+	capsEnvSpecified := cudaImage.HasEnvvar(envNVDriverCapabilities)
+	capsEnv := cudaImage.Getenv(envNVDriverCapabilities)
 
 	if !capsEnvSpecified && legacyImage {
 		// Environment variable unset with legacy image: set all capabilities.
@@ -325,9 +291,9 @@ func getDriverCapabilities(env map[string]string, supportedDriverCapabilities Dr
 
 	if capsEnvSpecified && len(capsEnv) > 0 {
 		// If the envvironment variable is specified and is non-empty, use the capabilities value
-		envCapabilities := DriverCapabilities(capsEnv)
+		envCapabilities := image.NewDriverCapabilities(capsEnv)
 		capabilities = supportedDriverCapabilities.Intersection(envCapabilities)
-		if envCapabilities != all && capabilities != envCapabilities {
+		if !envCapabilities.IsAll() && len(capabilities) != len(envCapabilities) {
 			log.Panicln(fmt.Errorf("unsupported capabilities found in '%v' (allowed '%v')", envCapabilities, capabilities))
 		}
 	}
@@ -335,27 +301,11 @@ func getDriverCapabilities(env map[string]string, supportedDriverCapabilities Dr
 	return capabilities
 }
 
-func getRequirements(env map[string]string, legacyImage bool) []string {
-	// All variables with the "NVIDIA_REQUIRE_" prefix are passed to nvidia-container-cli
-	var requirements []string
-	for name, value := range env {
-		if strings.HasPrefix(name, envNVRequirePrefix) {
-			requirements = append(requirements, value)
-		}
-	}
-	if legacyImage {
-		vmaj, vmin, _ := parseCudaVersion(env[envCUDAVersion])
-		cudaRequire := fmt.Sprintf("cuda>=%d.%d", vmaj, vmin)
-		requirements = append(requirements, cudaRequire)
-	}
-	return requirements
-}
-
-func getNvidiaConfig(hookConfig *HookConfig, env map[string]string, mounts []Mount, privileged bool) *nvidiaConfig {
-	legacyImage := isLegacyCUDAImage(env)
+func getNvidiaConfig(hookConfig *HookConfig, image image.CUDA, mounts []Mount, privileged bool) *nvidiaConfig {
+	legacyImage := image.IsLegacy()
 
 	var devices string
-	if d := getDevices(hookConfig, env, mounts, privileged, legacyImage); d != nil {
+	if d := getDevices(hookConfig, image, mounts, privileged); d != nil {
 		devices = *d
 	} else {
 		// 'nil' devices means this is not a GPU container.
@@ -363,7 +313,7 @@ func getNvidiaConfig(hookConfig *HookConfig, env map[string]string, mounts []Mou
 	}
 
 	var migConfigDevices string
-	if d := getMigConfigDevices(env); d != nil {
+	if d := getMigConfigDevices(image); d != nil {
 		migConfigDevices = *d
 	}
 	if !privileged && migConfigDevices != "" {
@@ -371,19 +321,19 @@ func getNvidiaConfig(hookConfig *HookConfig, env map[string]string, mounts []Mou
 	}
 
 	var migMonitorDevices string
-	if d := getMigMonitorDevices(env); d != nil {
+	if d := getMigMonitorDevices(image); d != nil {
 		migMonitorDevices = *d
 	}
 	if !privileged && migMonitorDevices != "" {
 		log.Panicln("cannot set MIG_MONITOR_DEVICES in non privileged container")
 	}
 
-	driverCapabilities := getDriverCapabilities(env, hookConfig.SupportedDriverCapabilities, legacyImage).String()
+	driverCapabilities := hookConfig.getDriverCapabilities(image, legacyImage).String()
 
-	requirements := getRequirements(env, legacyImage)
-
-	// Don't fail on invalid values.
-	disableRequire, _ := strconv.ParseBool(env[envNVDisableRequire])
+	requirements, err := image.GetRequirements()
+	if err != nil {
+		log.Panicln("failed to get requirements", err)
+	}
 
 	return &nvidiaConfig{
 		Devices:            devices,
@@ -391,7 +341,6 @@ func getNvidiaConfig(hookConfig *HookConfig, env map[string]string, mounts []Mou
 		MigMonitorDevices:  migMonitorDevices,
 		DriverCapabilities: driverCapabilities,
 		Requirements:       requirements,
-		DisableRequire:     disableRequire,
 	}
 }
 
@@ -409,13 +358,19 @@ func getContainerConfig(hook HookConfig) (config containerConfig) {
 
 	s := loadSpec(path.Join(b, "config.json"))
 
-	env := getEnvMap(s.Process.Env)
+	image, err := image.New(
+		image.WithEnv(s.Process.Env),
+		image.WithDisableRequire(hook.DisableRequire),
+	)
+	if err != nil {
+		log.Panicln(err)
+	}
+
 	privileged := isPrivileged(s)
-	envSwarmGPU = hook.SwarmResource
 	return containerConfig{
 		Pid:    h.Pid,
 		Rootfs: s.Root.Path,
-		Env:    env,
-		Nvidia: getNvidiaConfig(&hook, env, s.Mounts, privileged),
+		Image:  image,
+		Nvidia: getNvidiaConfig(&hook, image, s.Mounts, privileged),
 	}
 }

cmd/nvidia-container-runtime-hook/container_config_test.go

@@ -1,10 +1,13 @@
 package main
 
 import (
+	"fmt"
 	"path/filepath"
 	"testing"
 
 	"github.com/stretchr/testify/require"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/config/image"
 )
 
 func TestGetNvidiaConfig(t *testing.T) {
@@ -36,9 +39,8 @@ func TestGetNvidiaConfig(t *testing.T) {
 			privileged: false,
 			expectedConfig: &nvidiaConfig{
 				Devices:            "all",
-				DriverCapabilities: allDriverCapabilities.String(),
+				DriverCapabilities: image.SupportedDriverCapabilities.String(),
 				Requirements:       []string{"cuda>=9.0"},
-				DisableRequire:     false,
 			},
 		},
 		{
@@ -50,9 +52,8 @@ func TestGetNvidiaConfig(t *testing.T) {
 			privileged: false,
 			expectedConfig: &nvidiaConfig{
 				Devices:            "all",
-				DriverCapabilities: allDriverCapabilities.String(),
+				DriverCapabilities: image.SupportedDriverCapabilities.String(),
 				Requirements:       []string{"cuda>=9.0"},
-				DisableRequire:     false,
 			},
 		},
 		{
@@ -68,7 +69,7 @@ func TestGetNvidiaConfig(t *testing.T) {
 			description: "Legacy image, devices 'void', no capabilities, no requirements",
 			env: map[string]string{
 				envCUDAVersion:      "9.0",
-				envNVVisibleDevices: "",
+				envNVVisibleDevices: "void",
 			},
 			privileged:     false,
 			expectedConfig: nil,
@@ -82,9 +83,8 @@ func TestGetNvidiaConfig(t *testing.T) {
 			privileged: false,
 			expectedConfig: &nvidiaConfig{
 				Devices:            "",
-				DriverCapabilities: allDriverCapabilities.String(),
+				DriverCapabilities: image.SupportedDriverCapabilities.String(),
 				Requirements:       []string{"cuda>=9.0"},
-				DisableRequire:     false,
 			},
 		},
 		{
@@ -96,9 +96,8 @@ func TestGetNvidiaConfig(t *testing.T) {
 			privileged: false,
 			expectedConfig: &nvidiaConfig{
 				Devices:            "gpu0,gpu1",
-				DriverCapabilities: allDriverCapabilities.String(),
+				DriverCapabilities: image.SupportedDriverCapabilities.String(),
 				Requirements:       []string{"cuda>=9.0"},
-				DisableRequire:     false,
 			},
 		},
 		{
@@ -111,9 +110,8 @@ func TestGetNvidiaConfig(t *testing.T) {
 			privileged: false,
 			expectedConfig: &nvidiaConfig{
 				Devices:            "gpu0,gpu1",
-				DriverCapabilities: defaultDriverCapabilities.String(),
+				DriverCapabilities: image.DefaultDriverCapabilities.String(),
 				Requirements:       []string{"cuda>=9.0"},
-				DisableRequire:     false,
 			},
 		},
 		{
@@ -126,9 +124,8 @@ func TestGetNvidiaConfig(t *testing.T) {
 			privileged: false,
 			expectedConfig: &nvidiaConfig{
 				Devices:            "gpu0,gpu1",
-				DriverCapabilities: allDriverCapabilities.String(),
+				DriverCapabilities: image.SupportedDriverCapabilities.String(),
 				Requirements:       []string{"cuda>=9.0"},
-				DisableRequire:     false,
 			},
 		},
 		{
@@ -141,9 +138,8 @@ func TestGetNvidiaConfig(t *testing.T) {
 			privileged: false,
 			expectedConfig: &nvidiaConfig{
 				Devices:            "gpu0,gpu1",
-				DriverCapabilities: "video,display",
+				DriverCapabilities: "display,video",
 				Requirements:       []string{"cuda>=9.0"},
-				DisableRequire:     false,
 			},
 		},
 		{
@@ -158,9 +154,8 @@ func TestGetNvidiaConfig(t *testing.T) {
 			privileged: false,
 			expectedConfig: &nvidiaConfig{
 				Devices:            "gpu0,gpu1",
-				DriverCapabilities: "video,display",
+				DriverCapabilities: "display,video",
 				Requirements:       []string{"cuda>=9.0", "req0=true", "req1=false"},
-				DisableRequire:     false,
 			},
 		},
 		{
@@ -176,9 +171,8 @@ func TestGetNvidiaConfig(t *testing.T) {
 			privileged: false,
 			expectedConfig: &nvidiaConfig{
 				Devices:            "gpu0,gpu1",
-				DriverCapabilities: "video,display",
-				Requirements:       []string{"cuda>=9.0", "req0=true", "req1=false"},
-				DisableRequire:     true,
+				DriverCapabilities: "display,video",
+				Requirements:       []string{},
 			},
 		},
 		{
@@ -207,9 +201,8 @@ func TestGetNvidiaConfig(t *testing.T) {
 			privileged: false,
 			expectedConfig: &nvidiaConfig{
 				Devices:            "all",
-				DriverCapabilities: defaultDriverCapabilities.String(),
+				DriverCapabilities: image.DefaultDriverCapabilities.String(),
 				Requirements:       []string{"cuda>=9.0"},
-				DisableRequire:     false,
 			},
 		},
 		{
@@ -225,7 +218,7 @@ func TestGetNvidiaConfig(t *testing.T) {
 			description: "Modern image, devices 'void', no capabilities, no requirements",
 			env: map[string]string{
 				envNVRequireCUDA:    "cuda>=9.0",
-				envNVVisibleDevices: "",
+				envNVVisibleDevices: "void",
 			},
 			privileged:     false,
 			expectedConfig: nil,
@@ -239,9 +232,8 @@ func TestGetNvidiaConfig(t *testing.T) {
 			privileged: false,
 			expectedConfig: &nvidiaConfig{
 				Devices:            "",
-				DriverCapabilities: defaultDriverCapabilities.String(),
+				DriverCapabilities: image.DefaultDriverCapabilities.String(),
 				Requirements:       []string{"cuda>=9.0"},
-				DisableRequire:     false,
 			},
 		},
 		{
@@ -253,9 +245,8 @@ func TestGetNvidiaConfig(t *testing.T) {
 			privileged: false,
 			expectedConfig: &nvidiaConfig{
 				Devices:            "gpu0,gpu1",
-				DriverCapabilities: defaultDriverCapabilities.String(),
+				DriverCapabilities: image.DefaultDriverCapabilities.String(),
 				Requirements:       []string{"cuda>=9.0"},
-				DisableRequire:     false,
 			},
 		},
 		{
@@ -268,9 +259,8 @@ func TestGetNvidiaConfig(t *testing.T) {
 			privileged: false,
 			expectedConfig: &nvidiaConfig{
 				Devices:            "gpu0,gpu1",
-				DriverCapabilities: defaultDriverCapabilities.String(),
+				DriverCapabilities: image.DefaultDriverCapabilities.String(),
 				Requirements:       []string{"cuda>=9.0"},
-				DisableRequire:     false,
 			},
 		},
 		{
@@ -283,9 +273,8 @@ func TestGetNvidiaConfig(t *testing.T) {
 			privileged: false,
 			expectedConfig: &nvidiaConfig{
 				Devices:            "gpu0,gpu1",
-				DriverCapabilities: allDriverCapabilities.String(),
+				DriverCapabilities: image.SupportedDriverCapabilities.String(),
 				Requirements:       []string{"cuda>=9.0"},
-				DisableRequire:     false,
 			},
 		},
 		{
@@ -298,9 +287,8 @@ func TestGetNvidiaConfig(t *testing.T) {
 			privileged: false,
 			expectedConfig: &nvidiaConfig{
 				Devices:            "gpu0,gpu1",
-				DriverCapabilities: "video,display",
+				DriverCapabilities: "display,video",
 				Requirements:       []string{"cuda>=9.0"},
-				DisableRequire:     false,
 			},
 		},
 		{
@@ -315,9 +303,8 @@ func TestGetNvidiaConfig(t *testing.T) {
 			privileged: false,
 			expectedConfig: &nvidiaConfig{
 				Devices:            "gpu0,gpu1",
-				DriverCapabilities: "video,display",
+				DriverCapabilities: "display,video",
 				Requirements:       []string{"cuda>=9.0", "req0=true", "req1=false"},
-				DisableRequire:     false,
 			},
 		},
 		{
@@ -333,9 +320,8 @@ func TestGetNvidiaConfig(t *testing.T) {
 			privileged: false,
 			expectedConfig: &nvidiaConfig{
 				Devices:            "gpu0,gpu1",
-				DriverCapabilities: "video,display",
-				Requirements:       []string{"cuda>=9.0", "req0=true", "req1=false"},
-				DisableRequire:     true,
+				DriverCapabilities: "display,video",
+				Requirements:       []string{},
 			},
 		},
 		{
@@ -347,9 +333,8 @@ func TestGetNvidiaConfig(t *testing.T) {
 
 			expectedConfig: &nvidiaConfig{
 				Devices:            "all",
-				DriverCapabilities: defaultDriverCapabilities.String(),
+				DriverCapabilities: image.DefaultDriverCapabilities.String(),
 				Requirements:       []string{},
-				DisableRequire:     false,
 			},
 		},
 		{
@@ -363,9 +348,8 @@ func TestGetNvidiaConfig(t *testing.T) {
 			expectedConfig: &nvidiaConfig{
 				Devices:            "all",
 				MigConfigDevices:   "mig0,mig1",
-				DriverCapabilities: defaultDriverCapabilities.String(),
+				DriverCapabilities: image.DefaultDriverCapabilities.String(),
 				Requirements:       []string{"cuda>=9.0"},
-				DisableRequire:     false,
 			},
 		},
 		{
@@ -389,9 +373,8 @@ func TestGetNvidiaConfig(t *testing.T) {
 			expectedConfig: &nvidiaConfig{
 				Devices:            "all",
 				MigMonitorDevices:  "mig0,mig1",
-				DriverCapabilities: defaultDriverCapabilities.String(),
+				DriverCapabilities: image.DefaultDriverCapabilities.String(),
 				Requirements:       []string{"cuda>=9.0"},
-				DisableRequire:     false,
 			},
 		},
 		{
@@ -416,7 +399,7 @@ func TestGetNvidiaConfig(t *testing.T) {
 			},
 			expectedConfig: &nvidiaConfig{
 				Devices:            "all",
-				DriverCapabilities: "video,display",
+				DriverCapabilities: "display,video",
 			},
 		},
 		{
@@ -431,7 +414,7 @@ func TestGetNvidiaConfig(t *testing.T) {
 			},
 			expectedConfig: &nvidiaConfig{
 				Devices:            "all",
-				DriverCapabilities: "video,display",
+				DriverCapabilities: "display,video",
 			},
 		},
 		{
@@ -445,21 +428,56 @@ func TestGetNvidiaConfig(t *testing.T) {
 			},
 			expectedConfig: &nvidiaConfig{
 				Devices:            "all",
-				DriverCapabilities: defaultDriverCapabilities.String(),
+				DriverCapabilities: image.DefaultDriverCapabilities.String(),
+			},
+		},
+		{
+			description: "Hook config set, swarmResource overrides device selection",
+			env: map[string]string{
+				envNVVisibleDevices:     "all",
+				"DOCKER_SWARM_RESOURCE": "GPU1,GPU2",
+			},
+			privileged: true,
+			hookConfig: &HookConfig{
+				SwarmResource:               "DOCKER_SWARM_RESOURCE",
+				SupportedDriverCapabilities: "video,display,utility,compute",
+			},
+			expectedConfig: &nvidiaConfig{
+				Devices:            "GPU1,GPU2",
+				DriverCapabilities: image.DefaultDriverCapabilities.String(),
+			},
+		},
+		{
+			description: "Hook config set, comma separated swarmResource is split and overrides device selection",
+			env: map[string]string{
+				envNVVisibleDevices:     "all",
+				"DOCKER_SWARM_RESOURCE": "GPU1,GPU2",
+			},
+			privileged: true,
+			hookConfig: &HookConfig{
+				SwarmResource:               "NOT_DOCKER_SWARM_RESOURCE,DOCKER_SWARM_RESOURCE",
+				SupportedDriverCapabilities: "video,display,utility,compute",
+			},
+			expectedConfig: &nvidiaConfig{
+				Devices:            "GPU1,GPU2",
+				DriverCapabilities: image.DefaultDriverCapabilities.String(),
 			},
 		},
 	}
 	for _, tc := range tests {
 		t.Run(tc.description, func(t *testing.T) {
+			image, _ := image.New(
+				image.WithEnvMap(tc.env),
+			)
 			// Wrap the call to getNvidiaConfig() in a closure.
 			var config *nvidiaConfig
 			getConfig := func() {
 				hookConfig := tc.hookConfig
 				if hookConfig == nil {
-					defaultConfig := getDefaultHookConfig()
+					defaultConfig, _ := getDefaultHookConfig()
 					hookConfig = &defaultConfig
 				}
-				config = getNvidiaConfig(hookConfig, tc.env, nil, tc.privileged)
+				config = getNvidiaConfig(hookConfig, image, nil, tc.privileged)
 			}
 
 			// For any tests that are expected to panic, make sure they do.
@@ -485,7 +503,6 @@ func TestGetNvidiaConfig(t *testing.T) {
 			require.Equal(t, tc.expectedConfig.DriverCapabilities, config.DriverCapabilities)
 
 			require.ElementsMatch(t, tc.expectedConfig.Requirements, config.Requirements)
-			require.Equal(t, tc.expectedConfig.DisableRequire, config.DisableRequire)
 		})
 	}
 }
@@ -665,13 +682,17 @@ func TestDeviceListSourcePriority(t *testing.T) {
 			// Wrap the call to getDevices() in a closure.
 			var devices *string
 			getDevices := func() {
-				env := map[string]string{
-					envNVVisibleDevices: tc.envvarDevices,
-				}
-				hookConfig := getDefaultHookConfig()
+				image, _ := image.New(
+					image.WithEnvMap(
+						map[string]string{
+							envNVVisibleDevices: tc.envvarDevices,
+						},
+					),
+				)
+				hookConfig, _ := getDefaultHookConfig()
 				hookConfig.AcceptEnvvarUnprivileged = tc.acceptUnprivileged
 				hookConfig.AcceptDeviceListAsVolumeMounts = tc.acceptMounts
-				devices = getDevices(&hookConfig, env, tc.mountDevices, tc.privileged, false)
+				devices = getDevices(&hookConfig, image, tc.mountDevices, tc.privileged)
 			}
 
 			// For all other tests, just grab the devices and check the results
@@ -688,13 +709,13 @@ func TestGetDevicesFromEnvvar(t *testing.T) {
 	envDockerResourceGPUs := "DOCKER_RESOURCE_GPUS"
 	gpuID := "GPU-12345"
 	anotherGPUID := "GPU-67890"
+	thirdGPUID := "MIG-12345"
 
 	var tests = []struct {
-		description     string
-		envSwarmGPU     *string
-		env             map[string]string
-		legacyImage     bool
-		expectedDevices *string
+		description          string
+		swarmResourceEnvvars []string
+		env                  map[string]string
+		expectedDevices      *string
 	}{
 		{
 			description: "empty env returns nil for non-legacy image",
@@ -729,13 +750,15 @@ func TestGetDevicesFromEnvvar(t *testing.T) {
 			description: "NVIDIA_VISIBLE_DEVICES set returns value for legacy image",
 			env: map[string]string{
 				envNVVisibleDevices: gpuID,
+				envCUDAVersion:      "legacy",
 			},
-			legacyImage:     true,
 			expectedDevices: &gpuID,
 		},
 		{
-			description:     "empty env returns all for legacy image",
-			legacyImage:     true,
+			description: "empty env returns all for legacy image",
+			env: map[string]string{
+				envCUDAVersion: "legacy",
+			},
 			expectedDevices: &all,
 		},
 		// Add the `DOCKER_RESOURCE_GPUS` envvar and ensure that this is ignored when
@@ -781,86 +804,119 @@ func TestGetDevicesFromEnvvar(t *testing.T) {
 			env: map[string]string{
 				envNVVisibleDevices:   gpuID,
 				envDockerResourceGPUs: anotherGPUID,
+				envCUDAVersion:        "legacy",
 			},
-			legacyImage:     true,
 			expectedDevices: &gpuID,
 		},
 		{
 			description: "empty env returns all for legacy image",
 			env: map[string]string{
 				envDockerResourceGPUs: anotherGPUID,
+				envCUDAVersion:        "legacy",
 			},
-			legacyImage:     true,
 			expectedDevices: &all,
 		},
 		// Add the `DOCKER_RESOURCE_GPUS` envvar and ensure that this is selected when
 		// enabled
 		{
-			description: "empty env returns nil for non-legacy image",
-			envSwarmGPU: &envDockerResourceGPUs,
+			description:          "empty env returns nil for non-legacy image",
+			swarmResourceEnvvars: []string{envDockerResourceGPUs},
 		},
 		{
-			description: "blank DOCKER_RESOURCE_GPUS returns nil for non-legacy image",
-			envSwarmGPU: &envDockerResourceGPUs,
+			description:          "blank DOCKER_RESOURCE_GPUS returns nil for non-legacy image",
+			swarmResourceEnvvars: []string{envDockerResourceGPUs},
 			env: map[string]string{
 				envDockerResourceGPUs: "",
 			},
 		},
 		{
-			description: "'void' DOCKER_RESOURCE_GPUS returns nil for non-legacy image",
-			envSwarmGPU: &envDockerResourceGPUs,
+			description:          "'void' DOCKER_RESOURCE_GPUS returns nil for non-legacy image",
+			swarmResourceEnvvars: []string{envDockerResourceGPUs},
 			env: map[string]string{
 				envDockerResourceGPUs: "void",
 			},
 		},
 		{
-			description: "'none' DOCKER_RESOURCE_GPUS returns empty for non-legacy image",
-			envSwarmGPU: &envDockerResourceGPUs,
+			description:          "'none' DOCKER_RESOURCE_GPUS returns empty for non-legacy image",
+			swarmResourceEnvvars: []string{envDockerResourceGPUs},
 			env: map[string]string{
 				envDockerResourceGPUs: "none",
 			},
 			expectedDevices: &empty,
 		},
 		{
-			description: "DOCKER_RESOURCE_GPUS set returns value for non-legacy image",
-			envSwarmGPU: &envDockerResourceGPUs,
+			description:          "DOCKER_RESOURCE_GPUS set returns value for non-legacy image",
+			swarmResourceEnvvars: []string{envDockerResourceGPUs},
 			env: map[string]string{
 				envDockerResourceGPUs: gpuID,
 			},
 			expectedDevices: &gpuID,
 		},
 		{
-			description: "DOCKER_RESOURCE_GPUS set returns value for legacy image",
-			envSwarmGPU: &envDockerResourceGPUs,
+			description:          "DOCKER_RESOURCE_GPUS set returns value for legacy image",
+			swarmResourceEnvvars: []string{envDockerResourceGPUs},
 			env: map[string]string{
 				envDockerResourceGPUs: gpuID,
+				envCUDAVersion:        "legacy",
 			},
-			legacyImage:     true,
 			expectedDevices: &gpuID,
 		},
 		{
-			description: "DOCKER_RESOURCE_GPUS is selected if present",
-			envSwarmGPU: &envDockerResourceGPUs,
+			description:          "DOCKER_RESOURCE_GPUS is selected if present",
+			swarmResourceEnvvars: []string{envDockerResourceGPUs},
 			env: map[string]string{
 				envDockerResourceGPUs: anotherGPUID,
 			},
 			expectedDevices: &anotherGPUID,
 		},
 		{
-			description: "DOCKER_RESOURCE_GPUS overrides NVIDIA_VISIBLE_DEVICES if present",
-			envSwarmGPU: &envDockerResourceGPUs,
+			description:          "DOCKER_RESOURCE_GPUS overrides NVIDIA_VISIBLE_DEVICES if present",
+			swarmResourceEnvvars: []string{envDockerResourceGPUs},
 			env: map[string]string{
 				envNVVisibleDevices:   gpuID,
 				envDockerResourceGPUs: anotherGPUID,
 			},
 			expectedDevices: &anotherGPUID,
 		},
+		{
+			description:          "DOCKER_RESOURCE_GPUS_ADDITIONAL overrides NVIDIA_VISIBLE_DEVICES if present",
+			swarmResourceEnvvars: []string{"DOCKER_RESOURCE_GPUS_ADDITIONAL"},
+			env: map[string]string{
+				envNVVisibleDevices:               gpuID,
+				"DOCKER_RESOURCE_GPUS_ADDITIONAL": anotherGPUID,
+			},
+			expectedDevices: &anotherGPUID,
+		},
+		{
+			description:          "All available swarm resource envvars are selected and override NVIDIA_VISIBLE_DEVICES if present",
+			swarmResourceEnvvars: []string{"DOCKER_RESOURCE_GPUS", "DOCKER_RESOURCE_GPUS_ADDITIONAL"},
+			env: map[string]string{
+				envNVVisibleDevices:               gpuID,
+				"DOCKER_RESOURCE_GPUS":            thirdGPUID,
+				"DOCKER_RESOURCE_GPUS_ADDITIONAL": anotherGPUID,
+			},
+			expectedDevices: func() *string {
+				result := fmt.Sprintf("%s,%s", thirdGPUID, anotherGPUID)
+				return &result
+			}(),
+		},
+		{
+			description:          "DOCKER_RESOURCE_GPUS_ADDITIONAL or DOCKER_RESOURCE_GPUS override NVIDIA_VISIBLE_DEVICES if present",
+			swarmResourceEnvvars: []string{"DOCKER_RESOURCE_GPUS", "DOCKER_RESOURCE_GPUS_ADDITIONAL"},
+			env: map[string]string{
+				envNVVisibleDevices:               gpuID,
+				"DOCKER_RESOURCE_GPUS_ADDITIONAL": anotherGPUID,
+			},
+			expectedDevices: &anotherGPUID,
+		},
 	}
 
 	for i, tc := range tests {
 		t.Run(tc.description, func(t *testing.T) {
-			envSwarmGPU = tc.envSwarmGPU
-			devices := getDevicesFromEnvvar(tc.env, tc.legacyImage)
+			image, _ := image.New(
+				image.WithEnvMap(tc.env),
+			)
+			devices := getDevicesFromEnvvar(image, tc.swarmResourceEnvvars)
 			if tc.expectedDevices == nil {
 				require.Nil(t, devices, "%d: %v", i, tc)
 				return
@@ -874,7 +930,7 @@ func TestGetDevicesFromEnvvar(t *testing.T) {
 
 func TestGetDriverCapabilities(t *testing.T) {
 
-	supportedCapabilities := "compute,utility,display,video"
+	supportedCapabilities := "compute,display,utility,video"
 
 	testCases := []struct {
 		description           string
@@ -909,7 +965,7 @@ func TestGetDriverCapabilities(t *testing.T) {
 			},
 			legacyImage:           true,
 			supportedCapabilities: supportedCapabilities,
-			expectedCapabilities:  defaultDriverCapabilities.String(),
+			expectedCapabilities:  image.DefaultDriverCapabilities.String(),
 		},
 		{
 			description:           "Env unset for legacy image is 'all'",
@@ -932,7 +988,7 @@ func TestGetDriverCapabilities(t *testing.T) {
 			env:                   map[string]string{},
 			legacyImage:           false,
 			supportedCapabilities: supportedCapabilities,
-			expectedCapabilities:  defaultDriverCapabilities.String(),
+			expectedCapabilities:  image.DefaultDriverCapabilities.String(),
 		},
 		{
 			description: "Env is all for modern image",
@@ -950,7 +1006,7 @@ func TestGetDriverCapabilities(t *testing.T) {
 			},
 			legacyImage:           false,
 			supportedCapabilities: supportedCapabilities,
-			expectedCapabilities:  defaultDriverCapabilities.String(),
+			expectedCapabilities:  image.DefaultDriverCapabilities.String(),
 		},
 		{
 			description: "Invalid capabilities panic",
@@ -970,11 +1026,17 @@ func TestGetDriverCapabilities(t *testing.T) {
 
 	for _, tc := range testCases {
 		t.Run(tc.description, func(t *testing.T) {
-			var capabilites DriverCapabilities
+			var capabilities string
 
+			c := HookConfig{
+				SupportedDriverCapabilities: tc.supportedCapabilities,
+			}
+
+			image, _ := image.New(
+				image.WithEnvMap(tc.env),
+			)
 			getDriverCapabilities := func() {
-				supportedCapabilities := DriverCapabilities(tc.supportedCapabilities)
-				capabilites = getDriverCapabilities(tc.env, supportedCapabilities, tc.legacyImage)
+				capabilities = c.getDriverCapabilities(image, tc.legacyImage).String()
 			}
 
 			if tc.expectedPanic {
@@ -983,7 +1045,7 @@ func TestGetDriverCapabilities(t *testing.T) {
 			}
 
 			getDriverCapabilities()
-			require.EqualValues(t, tc.expectedCapabilities, capabilites)
+			require.EqualValues(t, tc.expectedCapabilities, capabilities)
 		})
 	}
 }

cmd/nvidia-container-runtime-hook/hook_config.go

@@ -0,0 +1,112 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"path"
+	"reflect"
+	"strings"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/config"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/config/image"
+)
+
+const (
+	configPath = "/etc/nvidia-container-runtime/config.toml"
+	driverPath = "/run/nvidia/driver"
+)
+
+// HookConfig : options for the nvidia-container-runtime-hook.
+type HookConfig config.Config
+
+func getDefaultHookConfig() (HookConfig, error) {
+	defaultCfg, err := config.GetDefault()
+	if err != nil {
+		return HookConfig{}, err
+	}
+
+	return *(*HookConfig)(defaultCfg), nil
+}
+
+// loadConfig loads the required paths for the hook config.
+func loadConfig() (*config.Config, error) {
+	var configPaths []string
+	var required bool
+	if len(*configflag) != 0 {
+		configPaths = append(configPaths, *configflag)
+		required = true
+	} else {
+		configPaths = append(configPaths, path.Join(driverPath, configPath), configPath)
+	}
+
+	for _, p := range configPaths {
+		cfg, err := config.New(
+			config.WithConfigFile(p),
+			config.WithRequired(true),
+		)
+		if err == nil {
+			return cfg.Config()
+		} else if os.IsNotExist(err) && !required {
+			continue
+		}
+		return nil, fmt.Errorf("couldn't open required configuration file: %v", err)
+	}
+
+	return config.GetDefault()
+}
+
+func getHookConfig() (*HookConfig, error) {
+	cfg, err := loadConfig()
+	if err != nil {
+		return nil, fmt.Errorf("failed to load config: %v", err)
+	}
+	config := (*HookConfig)(cfg)
+
+	allSupportedDriverCapabilities := image.SupportedDriverCapabilities
+	if config.SupportedDriverCapabilities == "all" {
+		config.SupportedDriverCapabilities = allSupportedDriverCapabilities.String()
+	}
+	configuredCapabilities := image.NewDriverCapabilities(config.SupportedDriverCapabilities)
+	// We ensure that the configured value is a subset of all supported capabilities
+	if !allSupportedDriverCapabilities.IsSuperset(configuredCapabilities) {
+		configName := config.getConfigOption("SupportedDriverCapabilities")
+		log.Panicf("Invalid value for config option '%v'; %v (supported: %v)\n", configName, config.SupportedDriverCapabilities, allSupportedDriverCapabilities.String())
+	}
+
+	return config, nil
+}
+
+// getConfigOption returns the toml config option associated with the
+// specified struct field.
+func (c HookConfig) getConfigOption(fieldName string) string {
+	t := reflect.TypeOf(c)
+	f, ok := t.FieldByName(fieldName)
+	if !ok {
+		return fieldName
+	}
+	v, ok := f.Tag.Lookup("toml")
+	if !ok {
+		return fieldName
+	}
+	return v
+}
+
+// getSwarmResourceEnvvars returns the swarm resource envvars for the config.
+func (c *HookConfig) getSwarmResourceEnvvars() []string {
+	if c.SwarmResource == "" {
+		return nil
+	}
+
+	candidates := strings.Split(c.SwarmResource, ",")
+
+	var envvars []string
+	for _, c := range candidates {
+		trimmed := strings.TrimSpace(c)
+		if len(trimmed) > 0 {
+			envvars = append(envvars, trimmed)
+		}
+	}
+
+	return envvars
+}

cmd/nvidia-container-runtime-hook/hook_config_test.go

@@ -22,22 +22,24 @@ import (
 	"testing"
 
 	"github.com/stretchr/testify/require"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/config/image"
 )
 
 func TestGetHookConfig(t *testing.T) {
 	testCases := []struct {
 		lines                      []string
 		expectedPanic              bool
-		expectedDriverCapabilities DriverCapabilities
+		expectedDriverCapabilities string
 	}{
 		{
-			expectedDriverCapabilities: allDriverCapabilities,
+			expectedDriverCapabilities: image.SupportedDriverCapabilities.String(),
 		},
 		{
 			lines: []string{
 				"supported-driver-capabilities = \"all\"",
 			},
-			expectedDriverCapabilities: allDriverCapabilities,
+			expectedDriverCapabilities: image.SupportedDriverCapabilities.String(),
 		},
 		{
 			lines: []string{
@@ -47,19 +49,19 @@ func TestGetHookConfig(t *testing.T) {
 		},
 		{
 			lines:                      []string{},
-			expectedDriverCapabilities: allDriverCapabilities,
+			expectedDriverCapabilities: image.SupportedDriverCapabilities.String(),
 		},
 		{
 			lines: []string{
 				"supported-driver-capabilities = \"\"",
 			},
-			expectedDriverCapabilities: none,
+			expectedDriverCapabilities: "",
 		},
 		{
 			lines: []string{
-				"supported-driver-capabilities = \"utility,compute\"",
+				"supported-driver-capabilities = \"compute,utility\"",
 			},
-			expectedDriverCapabilities: DriverCapabilities("utility,compute"),
+			expectedDriverCapabilities: "compute,utility",
 		},
 	}
 
@@ -89,7 +91,8 @@ func TestGetHookConfig(t *testing.T) {
 
 			var config HookConfig
 			getHookConfig := func() {
-				config = getHookConfig()
+				c, _ := getHookConfig()
+				config = *c
 			}
 
 			if tc.expectedPanic {
@@ -103,3 +106,50 @@ func TestGetHookConfig(t *testing.T) {
 		})
 	}
 }
+
+func TestGetSwarmResourceEnvvars(t *testing.T) {
+	testCases := []struct {
+		value    string
+		expected []string
+	}{
+		{
+			value:    "",
+			expected: nil,
+		},
+		{
+			value:    " ",
+			expected: nil,
+		},
+		{
+			value:    "single",
+			expected: []string{"single"},
+		},
+		{
+			value:    "single ",
+			expected: []string{"single"},
+		},
+		{
+			value:    "one,two",
+			expected: []string{"one", "two"},
+		},
+		{
+			value:    "one ,two",
+			expected: []string{"one", "two"},
+		},
+		{
+			value:    "one, two",
+			expected: []string{"one", "two"},
+		},
+	}
+
+	for i, tc := range testCases {
+		t.Run(fmt.Sprintf("%d", i), func(t *testing.T) {
+			c := &HookConfig{
+				SwarmResource: tc.value,
+			}
+
+			envvars := c.getSwarmResourceEnvvars()
+			require.EqualValues(t, tc.expected, envvars)
+		})
+	}
+}

cmd/nvidia-container-runtime-hook/hook_test.go

@@ -7,51 +7,6 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-func TestParseCudaVersionValid(t *testing.T) {
-	var tests = []struct {
-		version  string
-		expected [3]uint32
-	}{
-		{"0", [3]uint32{0, 0, 0}},
-		{"8", [3]uint32{8, 0, 0}},
-		{"7.5", [3]uint32{7, 5, 0}},
-		{"9.0.116", [3]uint32{9, 0, 116}},
-		{"4294967295.4294967295.4294967295", [3]uint32{4294967295, 4294967295, 4294967295}},
-	}
-	for i, c := range tests {
-		vmaj, vmin, vpatch := parseCudaVersion(c.version)
-
-		version := [3]uint32{vmaj, vmin, vpatch}
-
-		require.Equal(t, c.expected, version, "%d: %v", i, c)
-	}
-}
-
-func TestParseCudaVersionInvalid(t *testing.T) {
-	var tests = []string{
-		"foo",
-		"foo.5.10",
-		"9.0.116.50",
-		"9.0.116foo",
-		"7.foo",
-		"9.0.bar",
-		"9.4294967296",
-		"9.0.116.",
-		"9..0",
-		"9.",
-		".5.10",
-		"-9",
-		"+9",
-		"-9.1.116",
-		"-9.-1.-116",
-	}
-	for _, c := range tests {
-		require.Panics(t, func() {
-			parseCudaVersion(c)
-		}, "parseCudaVersion(%v)", c)
-	}
-}
-
 func TestIsPrivileged(t *testing.T) {
 	var tests = []struct {
 		spec     string

cmd/nvidia-container-runtime-hook/main.go

@@ -6,20 +6,23 @@ import (
 	"log"
 	"os"
 	"os/exec"
-	"path"
 	"path/filepath"
 	"runtime"
 	"runtime/debug"
 	"strconv"
 	"strings"
 	"syscall"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/config"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/info"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/lookup"
 )
 
 var (
-	debugflag  = flag.Bool("debug", false, "enable debug output")
-	configflag = flag.String("config", "", "configuration file")
-
-	defaultPATH = []string{"/usr/local/sbin", "/usr/local/bin", "/usr/sbin", "/usr/bin", "/sbin", "/bin"}
+	debugflag   = flag.Bool("debug", false, "enable debug output")
+	versionflag = flag.Bool("version", false, "enable version output")
+	configflag  = flag.String("config", "", "configuration file")
 )
 
 func exit() {
@@ -35,28 +38,12 @@ func exit() {
 	os.Exit(0)
 }
 
-func getPATH(config CLIConfig) string {
-	dirs := filepath.SplitList(os.Getenv("PATH"))
-	// directories from the hook environment have higher precedence
-	dirs = append(dirs, defaultPATH...)
-
-	if config.Root != nil {
-		rootDirs := []string{}
-		for _, dir := range dirs {
-			rootDirs = append(rootDirs, path.Join(*config.Root, dir))
-		}
-		// directories with the root prefix have higher precedence
-		dirs = append(rootDirs, dirs...)
-	}
-	return strings.Join(dirs, ":")
-}
-
-func getCLIPath(config CLIConfig) string {
-	if config.Path != nil {
-		return *config.Path
+func getCLIPath(config config.ContainerCLIConfig) string {
+	if config.Path != "" {
+		return config.Path
 	}
 
-	if err := os.Setenv("PATH", getPATH(config)); err != nil {
+	if err := os.Setenv("PATH", lookup.GetPath(config.Root)); err != nil {
 		log.Panicln("couldn't set PATH variable:", err)
 	}
 
@@ -82,21 +69,28 @@ func doPrestart() {
 	defer exit()
 	log.SetFlags(0)
 
-	hook := getHookConfig()
-	cli := hook.NvidiaContainerCLI
+	hook, err := getHookConfig()
+	if err != nil || hook == nil {
+		log.Panicln("error getting hook config:", err)
+	}
+	cli := hook.NVIDIAContainerCLIConfig
 
-	container := getContainerConfig(hook)
+	container := getContainerConfig(*hook)
 	nvidia := container.Nvidia
 	if nvidia == nil {
 		// Not a GPU container, nothing to do.
 		return
 	}
 
+	if !hook.NVIDIAContainerRuntimeHookConfig.SkipModeDetection && info.ResolveAutoMode(&logInterceptor{}, hook.NVIDIAContainerRuntimeConfig.Mode, container.Image) != "legacy" {
+		log.Panicln("invoking the NVIDIA Container Runtime Hook directly (e.g. specifying the docker --gpus flag) is not supported. Please use the NVIDIA Container Runtime (e.g. specify the --runtime=nvidia flag) instead.")
+	}
+
 	rootfs := getRootfsPath(container)
 
 	args := []string{getCLIPath(cli)}
-	if cli.Root != nil {
-		args = append(args, fmt.Sprintf("--root=%s", *cli.Root))
+	if cli.Root != "" {
+		args = append(args, fmt.Sprintf("--root=%s", cli.Root))
 	}
 	if cli.LoadKmods {
 		args = append(args, "--load-kmods")
@@ -106,19 +100,19 @@ func doPrestart() {
 	}
 	if *debugflag {
 		args = append(args, "--debug=/dev/stderr")
-	} else if cli.Debug != nil {
-		args = append(args, fmt.Sprintf("--debug=%s", *cli.Debug))
+	} else if cli.Debug != "" {
+		args = append(args, fmt.Sprintf("--debug=%s", cli.Debug))
 	}
-	if cli.Ldcache != nil {
-		args = append(args, fmt.Sprintf("--ldcache=%s", *cli.Ldcache))
+	if cli.Ldcache != "" {
+		args = append(args, fmt.Sprintf("--ldcache=%s", cli.Ldcache))
 	}
-	if cli.User != nil {
-		args = append(args, fmt.Sprintf("--user=%s", *cli.User))
+	if cli.User != "" {
+		args = append(args, fmt.Sprintf("--user=%s", cli.User))
 	}
 	args = append(args, "configure")
 
-	if cli.Ldconfig != nil {
-		args = append(args, fmt.Sprintf("--ldconfig=%s", *cli.Ldconfig))
+	if ldconfigPath := cli.NormalizeLDConfigPath(); ldconfigPath != "" {
+		args = append(args, fmt.Sprintf("--ldconfig=%s", ldconfigPath))
 	}
 	if cli.NoCgroups {
 		args = append(args, "--no-cgroups")
@@ -140,16 +134,15 @@ func doPrestart() {
 		args = append(args, capabilityToCLI(cap))
 	}
 
-	if !hook.DisableRequire && !nvidia.DisableRequire {
-		for _, req := range nvidia.Requirements {
-			args = append(args, fmt.Sprintf("--require=%s", req))
-		}
+	for _, req := range nvidia.Requirements {
+		args = append(args, fmt.Sprintf("--require=%s", req))
 	}
 
 	args = append(args, fmt.Sprintf("--pid=%s", strconv.FormatUint(uint64(container.Pid), 10)))
 	args = append(args, rootfs)
 
 	env := append(os.Environ(), cli.Environment...)
+	//nolint:gosec // TODO: Can we harden this so that there is less risk of command injection?
 	err = syscall.Exec(args[0], args, env)
 	log.Panicln("exec failed:", err)
 }
@@ -167,6 +160,11 @@ func main() {
 	flag.Usage = usage
 	flag.Parse()
 
+	if *versionflag {
+		fmt.Printf("%v version %v\n", "NVIDIA Container Runtime Hook", info.GetVersionString())
+		return
+	}
+
 	args := flag.Args()
 	if len(args) == 0 {
 		flag.Usage()
@@ -186,3 +184,12 @@ func main() {
 		os.Exit(2)
 	}
 }
+
+// logInterceptor implements the logger.Interface to allow for logging from executable.
+type logInterceptor struct {
+	logger.NullLogger
+}
+
+func (l *logInterceptor) Infof(format string, args ...interface{}) {
+	log.Printf(format, args...)
+}

cmd/nvidia-container-runtime.cdi/main.go

@@ -0,0 +1,34 @@
+/**
+# Copyright (c) NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package main
+
+import (
+	"os"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/runtime"
+)
+
+func main() {
+	rt := runtime.New(
+		runtime.WithModeOverride("cdi"),
+	)
+
+	err := rt.Run(os.Args)
+	if err != nil {
+		os.Exit(1)
+	}
+}

cmd/nvidia-container-runtime.legacy/main.go

@@ -0,0 +1,34 @@
+/**
+# Copyright (c) NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package main
+
+import (
+	"os"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/runtime"
+)
+
+func main() {
+	rt := runtime.New(
+		runtime.WithModeOverride("legacy"),
+	)
+
+	err := rt.Run(os.Args)
+	if err != nil {
+		os.Exit(1)
+	}
+}

cmd/nvidia-container-runtime/README.md

@@ -0,0 +1,210 @@
+# The NVIDIA Container Runtime
+
+The NVIDIA Container Runtime is a shim for OCI-compliant low-level runtimes such as [runc](https://github.com/opencontainers/runc). When a `create` command is detected, the incoming [OCI runtime specification](https://github.com/opencontainers/runtime-spec) is modified in place and the command is forwarded to the low-level runtime.
+
+## Configuration
+
+The NVIDIA Container Runtime uses file-based configuration, with the config stored in `/etc/nvidia-container-runtime/config.toml`. The `/etc` path can be overridden using the `XDG_CONFIG_HOME` environment variable with the `${XDG_CONFIG_HOME}/nvidia-container-runtime/config.toml` file used instead if this environment variable is set.
+
+This config file may contain options for other components of the NVIDIA container stack and for the NVIDIA Container Runtime, the relevant config section is `nvidia-container-runtime`
+
+### Logging
+
+The `log-level` config option (default: `"info"`) specifies the log level to use and the `debug` option, if set, specifies a log file to which logs for the NVIDIA Container Runtime must be written.
+
+In addition to this, the NVIDIA Container Runtime considers the value of `--log` and `--log-format` flags that may be passed to it by a container runtime such as docker or containerd. If the `--debug` flag is present the log-level specified in the config file is overridden as `"debug"`.
+
+### Low-level Runtime Path
+
+The `runtimes` config option allows for the low-level runtime to be specified. The first entry in this list that is an existing executable file is used as the low-level runtime. If the entry is not a path, the `PATH` is searched for a matching executable. If the entry is a path this is checked instead.
+
+The default value for this setting is:
+```toml
+runtimes = [
+    "docker-runc",
+    "runc",
+]
+```
+
+and if, for example, `crun` is to be used instead this can be changed to:
+```toml
+runtimes = [
+    "crun",
+]
+```
+
+### Runtime Mode
+
+The `mode` config option (default `"auto"`) controls the high-level behaviour of the runtime.
+
+#### Auto Mode
+
+When `mode` is set to `"auto"`, the runtime employs heuristics to determine which mode to use based on, for example, the platform where the runtime is being run.
+
+#### Legacy Mode
+
+When `mode` is set to `"legacy"`, the NVIDIA Container Runtime adds a [`prestart` hook](https://github.com/opencontainers/runtime-spec/blob/master/config.md#prestart) to the incomming OCI specification that invokes the NVIDIA Container Runtime Hook for all containers created. This hook checks whether NVIDIA devices are requested and ensures GPU access is configured using the `nvidia-container-cli` from the [libnvidia-container](https://github.com/NVIDIA/libnvidia-container) project.
+
+#### CSV Mode
+
+When `mode` is set to `"csv"`, CSV files at `/etc/nvidia-container-runtime/host-files-for-container.d` define the devices and mounts that are to be injected into a container when it is created. The search path for the files can be overridden by modifying the `nvidia-container-runtime.modes.csv.mount-spec-path` in the config as below:
+
+```toml
+[nvidia-container-runtime]
+    [nvidia-container-runtime.modes.csv]
+    mount-spec-path = "/etc/nvidia-container-runtime/host-files-for-container.d"
+```
+
+This mode is primarily targeted at Tegra-based systems without NVML available.
+
+### Notes on using the docker CLI
+
+Note that only the `"legacy"` NVIDIA Container Runtime mode is directly compatible with the `--gpus` flag implemented by the `docker` CLI (assuming the NVIDIA Container Runtime is not used). The reason for this is that `docker` inserts the same NVIDIA Container Runtime Hook into the OCI runtime specification.
+
+
+If a different mode is explicitly set or detected, the NVIDIA Container Runtime Hook will raise the following error when `--gpus` is set:
+```
+$ docker run --rm --gpus all ubuntu:18.04
+docker: Error response from daemon: failed to create shim: OCI runtime create failed: container_linux.go:380: starting container process caused: process_linux.go:545: container init caused: Running hook #0:: error running hook: exit status 1, stdout: , stderr: Auto-detected mode as 'csv'
+invoking the NVIDIA Container Runtime Hook directly (e.g. specifying the docker --gpus flag) is not supported. Please use the NVIDIA Container Runtime instead.: unknown.
+```
+Here NVIDIA Container Runtime must be used explicitly. The recommended way to do this is to specify the `--runtime=nvidia` command line argument as part of the `docker run` commmand as follows:
+```
+$ docker run --rm --gpus all --runtime=nvidia ubuntu:18.04
+```
+
+Alternatively the NVIDIA Container Runtime can be set as the default runtime for docker. This can be done by modifying the `/etc/docker/daemon.json` file as follows:
+```json
+{
+    "default-runtime": "nvidia",
+    "runtimes": {
+        "nvidia": {
+            "path": "nvidia-container-runtime",
+            "runtimeArgs": []
+        }
+    }
+}
+```
+
+## Environment variables (OCI spec)
+
+Each environment variable maps to an command-line argument for `nvidia-container-cli` from [libnvidia-container](https://github.com/NVIDIA/libnvidia-container).
+These variables are already set in our [official CUDA images](https://hub.docker.com/r/nvidia/cuda/).
+
+### `NVIDIA_VISIBLE_DEVICES`
+This variable controls which GPUs will be made accessible inside the container.
+
+#### Possible values
+* `0,1,2`, `GPU-fef8089b` …: a comma-separated list of GPU UUID(s) or index(es).
+* `all`: all GPUs will be accessible, this is the default value in our container images.
+* `none`: no GPU will be accessible, but driver capabilities will be enabled.
+* `void` or *empty* or *unset*: `nvidia-container-runtime` will have the same behavior as `runc`.
+
+**Note**: When running on a MIG capable device, the following values will also be available:
+* `0:0,0:1,1:0`, `MIG-GPU-fef8089b/0/1` …: a comma-separated list of MIG Device UUID(s) or index(es).
+
+Where the MIG device indices have the form `<GPU Device Index>:<MIG Device Index>` as seen in the example output:
+```
+$ nvidia-smi -L
+GPU 0: Graphics Device (UUID: GPU-b8ea3855-276c-c9cb-b366-c6fa655957c5)
+  MIG Device 0: (UUID: MIG-GPU-b8ea3855-276c-c9cb-b366-c6fa655957c5/1/0)
+  MIG Device 1: (UUID: MIG-GPU-b8ea3855-276c-c9cb-b366-c6fa655957c5/1/1)
+  MIG Device 2: (UUID: MIG-GPU-b8ea3855-276c-c9cb-b366-c6fa655957c5/11/0)
+```
+
+### `NVIDIA_MIG_CONFIG_DEVICES`
+This variable controls which of the visible GPUs can have their MIG
+configuration managed from within the container. This includes enabling and
+disabling MIG mode, creating and destroying GPU Instances and Compute
+Instances, etc.
+
+#### Possible values
+* `all`: Allow all MIG-capable GPUs in the visible device list to have their
+  MIG configurations managed.
+
+**Note**:
+* This feature is only available on MIG capable devices (e.g. the A100).
+* To use this feature, the container must be started with `CAP_SYS_ADMIN` privileges.
+* When not running as `root`, the container user must have read access to the
+  `/proc/driver/nvidia/capabilities/mig/config` file on the host.
+
+### `NVIDIA_MIG_MONITOR_DEVICES`
+This variable controls which of the visible GPUs can have aggregate information
+about all of their MIG devices monitored from within the container. This
+includes inspecting the aggregate memory usage, listing the aggregate running
+processes, etc.
+
+#### Possible values
+* `all`: Allow all MIG-capable GPUs in the visible device list to have their
+  MIG devices monitored.
+
+**Note**:
+* This feature is only available on MIG capable devices (e.g. the A100).
+* To use this feature, the container must be started with `CAP_SYS_ADMIN` privileges.
+* When not running as `root`, the container user must have read access to the
+  `/proc/driver/nvidia/capabilities/mig/monitor` file on the host.
+
+### `NVIDIA_DRIVER_CAPABILITIES`
+This option controls which driver libraries/binaries will be mounted inside the container.
+
+#### Possible values
+* `compute,video`, `graphics,utility` …: a comma-separated list of driver features the container needs.
+* `all`: enable all available driver capabilities.
+* *empty* or *unset*: use default driver capability: `utility,compute`.
+
+#### Supported driver capabilities
+* `compute`: required for CUDA and OpenCL applications.
+* `compat32`: required for running 32-bit applications.
+* `graphics`: required for running OpenGL and Vulkan applications.
+* `utility`: required for using `nvidia-smi` and NVML.
+* `video`: required for using the Video Codec SDK.
+* `display`: required for leveraging X11 display.
+
+### `NVIDIA_REQUIRE_*`
+A logical expression to define constraints on the configurations supported by the container.
+
+#### Supported constraints
+* `cuda`: constraint on the CUDA driver version.
+* `driver`: constraint on the driver version.
+* `arch`: constraint on the compute architectures of the selected GPUs.
+* `brand`: constraint on the brand of the selected GPUs (e.g. GeForce, Tesla, GRID).
+
+#### Expressions
+Multiple constraints can be expressed in a single environment variable: space-separated constraints are ORed, comma-separated constraints are ANDed.
+Multiple environment variables of the form `NVIDIA_REQUIRE_*` are ANDed together.
+
+### `NVIDIA_DISABLE_REQUIRE`
+Single switch to disable all the constraints of the form `NVIDIA_REQUIRE_*`.
+
+### `NVIDIA_REQUIRE_CUDA`
+
+The version of the CUDA toolkit used by the container. It is an instance of the generic `NVIDIA_REQUIRE_*` case and it is set by official CUDA images.
+If the version of the NVIDIA driver is insufficient to run this version of CUDA, the container will not be started.
+
+#### Possible values
+* `cuda>=7.5`, `cuda>=8.0`, `cuda>=9.0` …: any valid CUDA version in the form `major.minor`.
+
+### `CUDA_VERSION`
+Similar to `NVIDIA_REQUIRE_CUDA`, for legacy CUDA images.
+In addition, if `NVIDIA_REQUIRE_CUDA` is not set, `NVIDIA_VISIBLE_DEVICES` and `NVIDIA_DRIVER_CAPABILITIES` will default to `all`.
+
+## Usage example
+
+**NOTE:** The use of the `nvidia-container-runtime` as CLI replacement for `runc` is uncommon and is only provided for completeness.
+
+Although the `nvidia-container-runtime` is typically configured as a replacement for `runc` or `crun` in various container engines, it can also be
+invoked from the command line as `runc` would. For example:
+
+```sh
+# Setup a rootfs based on Ubuntu 16.04
+cd $(mktemp -d) && mkdir rootfs
+curl -sS http://cdimage.ubuntu.com/ubuntu-base/releases/16.04/release/ubuntu-base-16.04-core-amd64.tar.gz | tar --exclude 'dev/*' -C rootfs -xz
+
+# Create an OCI runtime spec
+nvidia-container-runtime spec
+sed -i 's;"sh";"nvidia-smi";' config.json
+sed -i 's;\("TERM=xterm"\);\1, "NVIDIA_VISIBLE_DEVICES=0";' config.json
+
+# Run the container
+sudo nvidia-container-runtime run nvidia_smi
+```

cmd/nvidia-container-runtime/logger.go

@@ -1,79 +0,0 @@
-/*
-# Copyright (c) 2021, NVIDIA CORPORATION.  All rights reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-*/
-
-package main
-
-import (
-	"fmt"
-	"io"
-	"os"
-
-	"github.com/sirupsen/logrus"
-	"github.com/tsaikd/KDGoLib/logrusutil"
-)
-
-// Logger adds a way to manage output to a log file to a logrus.Logger
-type Logger struct {
-	*logrus.Logger
-	previousOutput io.Writer
-	logFile        *os.File
-}
-
-// NewLogger constructs a Logger with a preddefined formatter
-func NewLogger() *Logger {
-	logrusLogger := logrus.New()
-
-	formatter := &logrusutil.ConsoleLogFormatter{
-		TimestampFormat: "2006/01/02 15:04:07",
-		Flag:            logrusutil.Ltime,
-	}
-
-	logger := &Logger{
-		Logger: logrusLogger,
-	}
-	logger.SetFormatter(formatter)
-
-	return logger
-}
-
-// LogToFile opens the specified file for appending and sets the logger to
-// output to the opened file. A reference to the file pointer is stored to
-// allow this to be closed.
-func (l *Logger) LogToFile(filename string) error {
-	logFile, err := os.OpenFile(filename, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
-	if err != nil {
-		return fmt.Errorf("error opening debug log file: %v", err)
-	}
-
-	l.logFile = logFile
-	l.previousOutput = l.Out
-	l.SetOutput(logFile)
-
-	return nil
-}
-
-// CloseFile closes the log file (if any) and resets the logger output to what it
-// was before LogToFile was called.
-func (l *Logger) CloseFile() error {
-	if l.logFile == nil {
-		return nil
-	}
-	logFile := l.logFile
-	l.SetOutput(l.previousOutput)
-	l.logFile = nil
-
-	return logFile.Close()
-}

cmd/nvidia-container-runtime/main.go

@@ -1,89 +1,15 @@
 package main
 
 import (
-	"fmt"
 	"os"
-	"path"
 
-	"github.com/pelletier/go-toml"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/runtime"
 )
 
-const (
-	configOverride = "XDG_CONFIG_HOME"
-	configFilePath = "nvidia-container-runtime/config.toml"
-
-	hookDefaultFilePath = "/usr/bin/nvidia-container-runtime-hook"
-)
-
-var (
-	configDir = "/etc/"
-)
-
-var logger = NewLogger()
-
 func main() {
-	err := run(os.Args)
+	r := runtime.New()
+	err := r.Run(os.Args)
 	if err != nil {
-		logger.Errorf("Error running %v: %v", os.Args, err)
 		os.Exit(1)
 	}
 }
-
-// run is an entry point that allows for idiomatic handling of errors
-// when calling from the main function.
-func run(argv []string) (err error) {
-	cfg, err := getConfig()
-	if err != nil {
-		return fmt.Errorf("error loading config: %v", err)
-	}
-
-	err = logger.LogToFile(cfg.debugFilePath)
-	if err != nil {
-		return fmt.Errorf("error opening debug log file: %v", err)
-	}
-	defer func() {
-		// We capture and log a returning error before closing the log file.
-		if err != nil {
-			logger.Errorf("Error running %v: %v", argv, err)
-		}
-		logger.CloseFile()
-	}()
-
-	r, err := newRuntime(argv)
-	if err != nil {
-		return fmt.Errorf("error creating runtime: %v", err)
-	}
-
-	logger.Printf("Running %s\n", argv[0])
-	return r.Exec(argv)
-}
-
-type config struct {
-	debugFilePath string
-}
-
-// getConfig sets up the config struct. Values are read from a toml file
-// or set via the environment.
-func getConfig() (*config, error) {
-	cfg := &config{}
-
-	if XDGConfigDir := os.Getenv(configOverride); len(XDGConfigDir) != 0 {
-		configDir = XDGConfigDir
-	}
-
-	configFilePath := path.Join(configDir, configFilePath)
-
-	tomlContent, err := os.ReadFile(configFilePath)
-	if err != nil {
-		return nil, err
-	}
-
-	toml, err := toml.Load(string(tomlContent))
-	if err != nil {
-		return nil, err
-	}
-
-	cfg.debugFilePath = toml.GetDefault("nvidia-container-runtime.debug", "/dev/null").(string)
-
-	return cfg, nil
-}

cmd/nvidia-container-runtime/main_test.go

@@ -3,17 +3,20 @@ package main
 import (
 	"bytes"
 	"encoding/json"
-	"fmt"
-	"io/ioutil"
+	"io"
+	"log"
 	"os"
 	"os/exec"
 	"path/filepath"
-	"runtime"
 	"strings"
 	"testing"
 
 	"github.com/opencontainers/runtime-spec/specs-go"
+	testlog "github.com/sirupsen/logrus/hooks/test"
 	"github.com/stretchr/testify/require"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/modifier"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/test"
 )
 
 const (
@@ -24,6 +27,10 @@ const (
 	unmodifiedSpecFileSuffix = "test/input/test_spec.json"
 )
 
+const (
+	runcExecutableName = "runc"
+)
+
 type testConfig struct {
 	root    string
 	binPath string
@@ -35,25 +42,25 @@ func TestMain(m *testing.M) {
 	// TEST SETUP
 	// Determine the module root and the test binary path
 	var err error
-	moduleRoot, err := getModuleRoot()
+	moduleRoot, err := test.GetModuleRoot()
 	if err != nil {
-		logger.Fatalf("error in test setup: could not get module root: %v", err)
+		log.Fatalf("error in test setup: could not get module root: %v", err)
 	}
 	testBinPath := filepath.Join(moduleRoot, "test", "bin")
 	testInputPath := filepath.Join(moduleRoot, "test", "input")
 
 	// Set the environment variables for the test
-	os.Setenv("PATH", prependToPath(testBinPath, moduleRoot))
+	os.Setenv("PATH", test.PrependToPath(testBinPath, moduleRoot))
 	os.Setenv("XDG_CONFIG_HOME", testInputPath)
 
 	// Confirm that the environment is configured correctly
 	runcPath, err := exec.LookPath(runcExecutableName)
 	if err != nil || filepath.Join(testBinPath, runcExecutableName) != runcPath {
-		logger.Fatalf("error in test setup: mock runc path set incorrectly in TestMain(): %v", err)
+		log.Fatalf("error in test setup: mock runc path set incorrectly in TestMain(): %v", err)
 	}
 	hookPath, err := exec.LookPath(nvidiaHook)
 	if err != nil || filepath.Join(testBinPath, nvidiaHook) != hookPath {
-		logger.Fatalf("error in test setup: mock hook path set incorrectly in TestMain(): %v", err)
+		log.Fatalf("error in test setup: mock hook path set incorrectly in TestMain(): %v", err)
 	}
 
 	// Store the root and binary paths in the test Config
@@ -71,45 +78,16 @@ func TestMain(m *testing.M) {
 	os.Exit(exitCode)
 }
 
-func getModuleRoot() (string, error) {
-	_, filename, _, _ := runtime.Caller(0)
-
-	return hasGoMod(filename)
-}
-
-func hasGoMod(dir string) (string, error) {
-	if dir == "" || dir == "/" {
-		return "", fmt.Errorf("module root not found")
-	}
-
-	_, err := os.Stat(filepath.Join(dir, "go.mod"))
-	if err != nil {
-		return hasGoMod(filepath.Dir(dir))
-	}
-	return dir, nil
-}
-
-func prependToPath(additionalPaths ...string) string {
-	paths := strings.Split(os.Getenv("PATH"), ":")
-	paths = append(additionalPaths, paths...)
-
-	return strings.Join(paths, ":")
-}
-
 // case 1) nvidia-container-runtime run --bundle
 // case 2) nvidia-container-runtime create --bundle
-//		- Confirm the runtime handles bad input correctly
+//   - Confirm the runtime handles bad input correctly
 func TestBadInput(t *testing.T) {
 	err := cfg.generateNewRuntimeSpec()
 	if err != nil {
 		t.Fatal(err)
 	}
 
-	cmdRun := exec.Command(nvidiaRuntime, "run", "--bundle")
-	t.Logf("executing: %s\n", strings.Join(cmdRun.Args, " "))
-	output, err := cmdRun.CombinedOutput()
-	require.Errorf(t, err, "runtime should return an error", "output=%v", string(output))
-
+	//nolint:gosec // TODO: Can we harden this so that there is less risk of command injection
 	cmdCreate := exec.Command(nvidiaRuntime, "create", "--bundle")
 	t.Logf("executing: %s\n", strings.Join(cmdCreate.Args, " "))
 	err = cmdCreate.Run()
@@ -117,15 +95,17 @@ func TestBadInput(t *testing.T) {
 }
 
 // case 1) nvidia-container-runtime run --bundle <bundle-name> <ctr-name>
-//		- Confirm the runtime runs with no errors
+//   - Confirm the runtime runs with no errors
+//
 // case 2) nvidia-container-runtime create --bundle <bundle-name> <ctr-name>
-//		- Confirm the runtime inserts the NVIDIA prestart hook correctly
+//   - Confirm the runtime inserts the NVIDIA prestart hook correctly
 func TestGoodInput(t *testing.T) {
 	err := cfg.generateNewRuntimeSpec()
 	if err != nil {
 		t.Fatalf("error generating runtime spec: %v", err)
 	}
 
+	//nolint:gosec // TODO: Can we harden this so that there is less risk of command injection
 	cmdRun := exec.Command(nvidiaRuntime, "run", "--bundle", cfg.bundlePath(), "testcontainer")
 	t.Logf("executing: %s\n", strings.Join(cmdRun.Args, " "))
 	output, err := cmdRun.CombinedOutput()
@@ -136,6 +116,7 @@ func TestGoodInput(t *testing.T) {
 	require.NoError(t, err, "should be no errors when reading and parsing spec from config.json")
 	require.Empty(t, spec.Hooks, "there should be no hooks in config.json")
 
+	//nolint:gosec // TODO: Can we harden this so that there is less risk of command injection
 	cmdCreate := exec.Command(nvidiaRuntime, "create", "--bundle", cfg.bundlePath(), "testcontainer")
 	t.Logf("executing: %s\n", strings.Join(cmdCreate.Args, " "))
 	err = cmdCreate.Run()
@@ -181,6 +162,7 @@ func TestDuplicateHook(t *testing.T) {
 	}
 
 	// Test how runtime handles already existing prestart hook in config.json
+	//nolint:gosec // TODO: Can we harden this so that there is less risk of command injection
 	cmdCreate := exec.Command(nvidiaRuntime, "create", "--bundle", cfg.bundlePath(), "testcontainer")
 	t.Logf("executing: %s\n", strings.Join(cmdCreate.Args, " "))
 	output, err := cmdCreate.CombinedOutput()
@@ -193,11 +175,12 @@ func TestDuplicateHook(t *testing.T) {
 	require.Equal(t, 1, nvidiaHookCount(spec.Hooks), "exactly one nvidia prestart hook should be inserted correctly into config.json")
 }
 
-// addNVIDIAHook is a basic wrapper for nvidiaContainerRunime.addNVIDIAHook that is used for
+// addNVIDIAHook is a basic wrapper for an addHookModifier that is used for
 // testing.
 func addNVIDIAHook(spec *specs.Spec) error {
-	r := nvidiaContainerRuntime{logger: logger.Logger}
-	return r.addNVIDIAHook(spec)
+	logger, _ := testlog.NewNullLogger()
+	m := modifier.NewStableRuntimeModifier(logger, nvidiaHook)
+	return m.Modify(spec)
 }
 
 func (c testConfig) getRuntimeSpec() (specs.Spec, error) {
@@ -210,15 +193,16 @@ func (c testConfig) getRuntimeSpec() (specs.Spec, error) {
 	}
 	defer jsonFile.Close()
 
-	jsonContent, err := ioutil.ReadAll(jsonFile)
-	if err != nil {
+	jsonContent, err := io.ReadAll(jsonFile)
+	switch {
+	case err != nil:
 		return spec, err
-	} else if json.Valid(jsonContent) {
+	case json.Valid(jsonContent):
 		err = json.Unmarshal(jsonContent, &spec)
 		if err != nil {
 			return spec, err
 		}
-	} else {
+	default:
 		err = json.NewDecoder(bytes.NewReader(jsonContent)).Decode(&spec)
 		if err != nil {
 			return spec, err
@@ -248,6 +232,7 @@ func (c testConfig) generateNewRuntimeSpec() error {
 		return err
 	}
 
+	//nolint:gosec // TODO: Can we harden this so that there is less risk of command injection
 	cmd := exec.Command("cp", c.unmodifiedSpecFile(), c.specFilePath())
 	err = cmd.Run()
 	if err != nil {
@@ -270,24 +255,3 @@ func nvidiaHookCount(hooks *specs.Hooks) int {
 	}
 	return count
 }
-
-func TestGetConfigWithCustomConfig(t *testing.T) {
-	wd, err := os.Getwd()
-	require.NoError(t, err)
-
-	// By default debug is disabled
-	contents := []byte("[nvidia-container-runtime]\ndebug = \"/nvidia-container-toolkit.log\"")
-	testDir := filepath.Join(wd, "test")
-	filename := filepath.Join(testDir, configFilePath)
-
-	os.Setenv(configOverride, testDir)
-
-	require.NoError(t, os.MkdirAll(filepath.Dir(filename), 0766))
-	require.NoError(t, ioutil.WriteFile(filename, contents, 0766))
-
-	defer func() { require.NoError(t, os.RemoveAll(testDir)) }()
-
-	cfg, err := getConfig()
-	require.NoError(t, err)
-	require.Equal(t, cfg.debugFilePath, "/nvidia-container-toolkit.log")
-}

cmd/nvidia-container-runtime/nvcr.go

@@ -1,132 +0,0 @@
-/*
-# Copyright (c) 2021, NVIDIA CORPORATION.  All rights reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-*/
-
-package main
-
-import (
-	"fmt"
-	"os"
-	"os/exec"
-	"strings"
-
-	"github.com/NVIDIA/nvidia-container-toolkit/internal/oci"
-	"github.com/opencontainers/runtime-spec/specs-go"
-	log "github.com/sirupsen/logrus"
-)
-
-// nvidiaContainerRuntime encapsulates the NVIDIA Container Runtime. It wraps the specified runtime, conditionally
-// modifying the specified OCI specification before invoking the runtime.
-type nvidiaContainerRuntime struct {
-	logger  *log.Logger
-	runtime oci.Runtime
-	ociSpec oci.Spec
-}
-
-var _ oci.Runtime = (*nvidiaContainerRuntime)(nil)
-
-// newNvidiaContainerRuntime is a constructor for a standard runtime shim.
-func newNvidiaContainerRuntimeWithLogger(logger *log.Logger, runtime oci.Runtime, ociSpec oci.Spec) (oci.Runtime, error) {
-	r := nvidiaContainerRuntime{
-		logger:  logger,
-		runtime: runtime,
-		ociSpec: ociSpec,
-	}
-
-	return &r, nil
-}
-
-// Exec defines the entrypoint for the NVIDIA Container Runtime. A check is performed to see whether modifications
-// to the OCI spec are required -- and applicable modifcations applied. The supplied arguments are then
-// forwarded to the underlying runtime's Exec method.
-func (r nvidiaContainerRuntime) Exec(args []string) error {
-	if r.modificationRequired(args) {
-		err := r.modifyOCISpec()
-		if err != nil {
-			return fmt.Errorf("error modifying OCI spec: %v", err)
-		}
-	}
-
-	r.logger.Println("Forwarding command to runtime")
-	return r.runtime.Exec(args)
-}
-
-// modificationRequired checks the intput arguments to determine whether a modification
-// to the OCI spec is required.
-func (r nvidiaContainerRuntime) modificationRequired(args []string) bool {
-	if oci.HasCreateSubcommand(args) {
-		r.logger.Infof("'create' command detected; modification required")
-		return true
-	}
-
-	r.logger.Infof("No modification required")
-	return false
-}
-
-// modifyOCISpec loads and modifies the OCI spec specified in the nvidiaContainerRuntime
-// struct. The spec is modified in-place and written to the same file as the input after
-// modifcationas are applied.
-func (r nvidiaContainerRuntime) modifyOCISpec() error {
-	err := r.ociSpec.Load()
-	if err != nil {
-		return fmt.Errorf("error loading OCI specification for modification: %v", err)
-	}
-
-	err = r.ociSpec.Modify(r.addNVIDIAHook)
-	if err != nil {
-		return fmt.Errorf("error injecting NVIDIA Container Runtime hook: %v", err)
-	}
-
-	err = r.ociSpec.Flush()
-	if err != nil {
-		return fmt.Errorf("error writing modified OCI specification: %v", err)
-	}
-	return nil
-}
-
-// addNVIDIAHook modifies the specified OCI specification in-place, inserting a
-// prestart hook.
-func (r nvidiaContainerRuntime) addNVIDIAHook(spec *specs.Spec) error {
-	path, err := exec.LookPath("nvidia-container-runtime-hook")
-	if err != nil {
-		path = hookDefaultFilePath
-		_, err = os.Stat(path)
-		if err != nil {
-			return err
-		}
-	}
-
-	r.logger.Printf("prestart hook path: %s\n", path)
-
-	args := []string{path}
-	if spec.Hooks == nil {
-		spec.Hooks = &specs.Hooks{}
-	} else if len(spec.Hooks.Prestart) != 0 {
-		for _, hook := range spec.Hooks.Prestart {
-			if !strings.Contains(hook.Path, "nvidia-container-runtime-hook") {
-				continue
-			}
-			r.logger.Println("existing nvidia prestart hook in OCI spec file")
-			return nil
-		}
-	}
-
-	spec.Hooks.Prestart = append(spec.Hooks.Prestart, specs.Hook{
-		Path: path,
-		Args: append(args, "prestart"),
-	})
-
-	return nil
-}

cmd/nvidia-container-runtime/nvcr_test.go

@@ -1,203 +0,0 @@
-/*
-# Copyright (c) 2021, NVIDIA CORPORATION.  All rights reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-*/
-
-package main
-
-import (
-	"fmt"
-	"strings"
-	"testing"
-
-	"github.com/NVIDIA/nvidia-container-toolkit/internal/oci"
-	"github.com/opencontainers/runtime-spec/specs-go"
-	testlog "github.com/sirupsen/logrus/hooks/test"
-	"github.com/stretchr/testify/require"
-)
-
-func TestAddNvidiaHook(t *testing.T) {
-	logger, logHook := testlog.NewNullLogger()
-	shim := nvidiaContainerRuntime{
-		logger: logger,
-	}
-
-	testCases := []struct {
-		spec         *specs.Spec
-		errorPrefix  string
-		shouldNotAdd bool
-	}{
-		{
-			spec: &specs.Spec{},
-		},
-		{
-			spec: &specs.Spec{
-				Hooks: &specs.Hooks{},
-			},
-		},
-		{
-			spec: &specs.Spec{
-				Hooks: &specs.Hooks{
-					Prestart: []specs.Hook{{
-						Path: "some-hook",
-					}},
-				},
-			},
-		},
-		{
-			spec: &specs.Spec{
-				Hooks: &specs.Hooks{
-					Prestart: []specs.Hook{{
-						Path: "nvidia-container-runtime-hook",
-					}},
-				},
-			},
-			shouldNotAdd: true,
-		},
-	}
-
-	for i, tc := range testCases {
-		logHook.Reset()
-
-		var numPrestartHooks int
-		if tc.spec.Hooks != nil {
-			numPrestartHooks = len(tc.spec.Hooks.Prestart)
-		}
-
-		err := shim.addNVIDIAHook(tc.spec)
-
-		if tc.errorPrefix == "" {
-			require.NoErrorf(t, err, "%d: %v", i, tc)
-		} else {
-			require.Truef(t, strings.HasPrefix(err.Error(), tc.errorPrefix), "%d: %v", i, tc)
-
-			require.NotNilf(t, tc.spec.Hooks, "%d: %v", i, tc)
-			require.Equalf(t, 1, nvidiaHookCount(tc.spec.Hooks), "%d: %v", i, tc)
-
-			if tc.shouldNotAdd {
-				require.Equal(t, numPrestartHooks+1, len(tc.spec.Hooks.Poststart), "%d: %v", i, tc)
-			} else {
-				require.Equal(t, numPrestartHooks+1, len(tc.spec.Hooks.Poststart), "%d: %v", i, tc)
-
-				nvidiaHook := tc.spec.Hooks.Poststart[len(tc.spec.Hooks.Poststart)-1]
-
-				// TODO: This assumes that the hook has been set up in the makefile
-				expectedPath := "/usr/bin/nvidia-container-runtime-hook"
-				require.Equalf(t, expectedPath, nvidiaHook.Path, "%d: %v", i, tc)
-				require.Equalf(t, []string{expectedPath, "prestart"}, nvidiaHook.Args, "%d: %v", i, tc)
-				require.Emptyf(t, nvidiaHook.Env, "%d: %v", i, tc)
-				require.Nilf(t, nvidiaHook.Timeout, "%d: %v", i, tc)
-			}
-		}
-	}
-}
-
-func TestNvidiaContainerRuntime(t *testing.T) {
-	logger, hook := testlog.NewNullLogger()
-
-	testCases := []struct {
-		shim         nvidiaContainerRuntime
-		shouldModify bool
-		args         []string
-		modifyError  error
-		writeError   error
-	}{
-		{
-			shim:         nvidiaContainerRuntime{},
-			shouldModify: false,
-		},
-		{
-			shim:         nvidiaContainerRuntime{},
-			args:         []string{"create"},
-			shouldModify: true,
-		},
-		{
-			shim:         nvidiaContainerRuntime{},
-			args:         []string{"--bundle=create"},
-			shouldModify: false,
-		},
-		{
-			shim:         nvidiaContainerRuntime{},
-			args:         []string{"--bundle", "create"},
-			shouldModify: false,
-		},
-		{
-			shim:         nvidiaContainerRuntime{},
-			args:         []string{"create"},
-			shouldModify: true,
-		},
-		{
-			shim:         nvidiaContainerRuntime{},
-			args:         []string{"create"},
-			modifyError:  fmt.Errorf("error modifying"),
-			shouldModify: true,
-		},
-		{
-			shim:         nvidiaContainerRuntime{},
-			args:         []string{"create"},
-			writeError:   fmt.Errorf("error writing"),
-			shouldModify: true,
-		},
-	}
-
-	for i, tc := range testCases {
-		tc.shim.logger = logger
-		hook.Reset()
-
-		ociMock := &oci.SpecMock{
-			ModifyFunc: func(specModifier oci.SpecModifier) error {
-				return tc.modifyError
-			},
-			FlushFunc: func() error {
-				return tc.writeError
-			},
-		}
-		require.Equal(t, tc.shouldModify, tc.shim.modificationRequired(tc.args), "%d: %v", i, tc)
-
-		tc.shim.ociSpec = ociMock
-		tc.shim.runtime = &MockShim{}
-
-		err := tc.shim.Exec(tc.args)
-		if tc.modifyError != nil || tc.writeError != nil {
-			require.Error(t, err, "%d: %v", i, tc)
-		} else {
-			require.NoError(t, err, "%d: %v", i, tc)
-		}
-
-		if tc.shouldModify {
-			require.Equal(t, 1, len(ociMock.ModifyCalls()), "%d: %v", i, tc)
-		} else {
-			require.Equal(t, 0, len(ociMock.ModifyCalls()), "%d: %v", i, tc)
-		}
-
-		writeExpected := tc.shouldModify && tc.modifyError == nil
-		if writeExpected {
-			require.Equal(t, 1, len(ociMock.FlushCalls()), "%d: %v", i, tc)
-		} else {
-			require.Equal(t, 0, len(ociMock.FlushCalls()), "%d: %v", i, tc)
-		}
-	}
-}
-
-type MockShim struct {
-	called      bool
-	args        []string
-	returnError error
-}
-
-func (m *MockShim) Exec(args []string) error {
-	m.called = true
-	m.args = args
-	return m.returnError
-}

cmd/nvidia-container-runtime/runtime_factory.go

@@ -1,74 +0,0 @@
-/*
-# Copyright (c) 2021, NVIDIA CORPORATION.  All rights reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-*/
-
-package main
-
-import (
-	"fmt"
-
-	"github.com/NVIDIA/nvidia-container-toolkit/internal/oci"
-)
-
-const (
-	ociSpecFileName          = "config.json"
-	dockerRuncExecutableName = "docker-runc"
-	runcExecutableName       = "runc"
-)
-
-// newRuntime is a factory method that constructs a runtime based on the selected configuration.
-func newRuntime(argv []string) (oci.Runtime, error) {
-	ociSpec, err := newOCISpec(argv)
-	if err != nil {
-		return nil, fmt.Errorf("error constructing OCI specification: %v", err)
-	}
-
-	runc, err := newRuncRuntime()
-	if err != nil {
-		return nil, fmt.Errorf("error constructing runc runtime: %v", err)
-	}
-
-	r, err := newNvidiaContainerRuntimeWithLogger(logger.Logger, runc, ociSpec)
-	if err != nil {
-		return nil, fmt.Errorf("error constructing NVIDIA Container Runtime: %v", err)
-	}
-
-	return r, nil
-}
-
-// newOCISpec constructs an OCI spec for the provided arguments
-func newOCISpec(argv []string) (oci.Spec, error) {
-	bundleDir, err := oci.GetBundleDir(argv)
-	if err != nil {
-		return nil, fmt.Errorf("error parsing command line arguments: %v", err)
-	}
-	logger.Infof("Using bundle directory: %v", bundleDir)
-
-	ociSpecPath := oci.GetSpecFilePath(bundleDir)
-	logger.Infof("Using OCI specification file path: %v", ociSpecPath)
-
-	ociSpec := oci.NewSpecFromFile(ociSpecPath)
-
-	return ociSpec, nil
-}
-
-// newRuncRuntime locates the runc binary and wraps it in a SyscallExecRuntime
-func newRuncRuntime() (oci.Runtime, error) {
-	return oci.NewLowLevelRuntimeWithLogger(
-		logger.Logger,
-		dockerRuncExecutableName,
-		runcExecutableName,
-	)
-}

cmd/nvidia-container-toolkit/capabilities.go

@@ -1,83 +0,0 @@
-package main
-
-import (
-	"log"
-	"strings"
-)
-
-const (
-	allDriverCapabilities     = DriverCapabilities("compute,compat32,graphics,utility,video,display,ngx")
-	defaultDriverCapabilities = DriverCapabilities("utility,compute")
-
-	none = DriverCapabilities("")
-	all  = DriverCapabilities("all")
-)
-
-func capabilityToCLI(cap string) string {
-	switch cap {
-	case "compute":
-		return "--compute"
-	case "compat32":
-		return "--compat32"
-	case "graphics":
-		return "--graphics"
-	case "utility":
-		return "--utility"
-	case "video":
-		return "--video"
-	case "display":
-		return "--display"
-	case "ngx":
-		return "--ngx"
-	default:
-		log.Panicln("unknown driver capability:", cap)
-	}
-	return ""
-}
-
-// DriverCapabilities is used to process the NVIDIA_DRIVER_CAPABILITIES environment
-// variable. Operations include default values, filtering, and handling meta values such as "all"
-type DriverCapabilities string
-
-// Intersection returns intersection between two sets of capabilities.
-func (d DriverCapabilities) Intersection(capabilities DriverCapabilities) DriverCapabilities {
-	if capabilities == all {
-		return d
-	}
-	if d == all {
-		return capabilities
-	}
-
-	lookup := make(map[string]bool)
-	for _, c := range d.list() {
-		lookup[c] = true
-	}
-	var found []string
-	for _, c := range capabilities.list() {
-		if lookup[c] {
-			found = append(found, c)
-		}
-	}
-
-	intersection := DriverCapabilities(strings.Join(found, ","))
-	return intersection
-}
-
-// String returns the string representation of the driver capabilities
-func (d DriverCapabilities) String() string {
-	return string(d)
-}
-
-// list returns the driver capabilities as a list
-func (d DriverCapabilities) list() []string {
-	var caps []string
-	for _, c := range strings.Split(string(d), ",") {
-		trimmed := strings.TrimSpace(c)
-		if len(trimmed) == 0 {
-			continue
-		}
-		caps = append(caps, trimmed)
-	}
-
-	return caps
-}

cmd/nvidia-container-toolkit/capabilities_test.go

@@ -1,134 +0,0 @@
-/**
-# Copyright (c) 2021, NVIDIA CORPORATION.  All rights reserved.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-**/
-
-package main
-
-import (
-	"fmt"
-	"testing"
-
-	"github.com/stretchr/testify/require"
-)
-
-func TestDriverCapabilitiesIntersection(t *testing.T) {
-	testCases := []struct {
-		capabilities          DriverCapabilities
-		supportedCapabilities DriverCapabilities
-		expectedIntersection  DriverCapabilities
-	}{
-		{
-			capabilities:          none,
-			supportedCapabilities: none,
-			expectedIntersection:  none,
-		},
-		{
-			capabilities:          all,
-			supportedCapabilities: none,
-			expectedIntersection:  none,
-		},
-		{
-			capabilities:          all,
-			supportedCapabilities: allDriverCapabilities,
-			expectedIntersection:  allDriverCapabilities,
-		},
-		{
-			capabilities:          allDriverCapabilities,
-			supportedCapabilities: all,
-			expectedIntersection:  allDriverCapabilities,
-		},
-		{
-			capabilities:          none,
-			supportedCapabilities: all,
-			expectedIntersection:  none,
-		},
-		{
-			capabilities:          none,
-			supportedCapabilities: DriverCapabilities("cap1"),
-			expectedIntersection:  none,
-		},
-		{
-			capabilities:          DriverCapabilities("cap0,cap1"),
-			supportedCapabilities: DriverCapabilities("cap1,cap0"),
-			expectedIntersection:  DriverCapabilities("cap0,cap1"),
-		},
-		{
-			capabilities:          defaultDriverCapabilities,
-			supportedCapabilities: allDriverCapabilities,
-			expectedIntersection:  defaultDriverCapabilities,
-		},
-		{
-			capabilities:          DriverCapabilities("compute,compat32,graphics,utility,video,display"),
-			supportedCapabilities: DriverCapabilities("compute,compat32,graphics,utility,video,display,ngx"),
-			expectedIntersection:  DriverCapabilities("compute,compat32,graphics,utility,video,display"),
-		},
-		{
-			capabilities:          DriverCapabilities("cap1"),
-			supportedCapabilities: none,
-			expectedIntersection:  none,
-		},
-		{
-			capabilities:          DriverCapabilities("compute,compat32,graphics,utility,video,display,ngx"),
-			supportedCapabilities: DriverCapabilities("compute,compat32,graphics,utility,video,display"),
-			expectedIntersection:  DriverCapabilities("compute,compat32,graphics,utility,video,display"),
-		},
-	}
-
-	for i, tc := range testCases {
-		t.Run(fmt.Sprintf("test case %d", i), func(t *testing.T) {
-			intersection := tc.supportedCapabilities.Intersection(tc.capabilities)
-			require.EqualValues(t, tc.expectedIntersection, intersection)
-		})
-	}
-}
-
-func TestDriverCapabilitiesList(t *testing.T) {
-	testCases := []struct {
-		capabilities DriverCapabilities
-		expected     []string
-	}{
-		{
-			capabilities: DriverCapabilities(""),
-		},
-		{
-			capabilities: DriverCapabilities("  "),
-		},
-		{
-			capabilities: DriverCapabilities(","),
-		},
-		{
-			capabilities: DriverCapabilities(",cap"),
-			expected:     []string{"cap"},
-		},
-		{
-			capabilities: DriverCapabilities("cap,"),
-			expected:     []string{"cap"},
-		},
-		{
-			capabilities: DriverCapabilities("cap0,,cap1"),
-			expected:     []string{"cap0", "cap1"},
-		},
-		{
-			capabilities: DriverCapabilities("cap1,cap0,cap3"),
-			expected:     []string{"cap1", "cap0", "cap3"},
-		},
-	}
-
-	for i, tc := range testCases {
-		t.Run(fmt.Sprintf("test case %d", i), func(t *testing.T) {
-			require.EqualValues(t, tc.expected, tc.capabilities.list())
-		})
-	}
-}

cmd/nvidia-container-toolkit/hook_config.go

@@ -1,115 +0,0 @@
-package main
-
-import (
-	"log"
-	"os"
-	"path"
-	"reflect"
-
-	"github.com/BurntSushi/toml"
-)
-
-const (
-	configPath = "/etc/nvidia-container-runtime/config.toml"
-	driverPath = "/run/nvidia/driver"
-)
-
-var defaultPaths = [...]string{
-	path.Join(driverPath, configPath),
-	configPath,
-}
-
-// CLIConfig : options for nvidia-container-cli.
-type CLIConfig struct {
-	Root        *string  `toml:"root"`
-	Path        *string  `toml:"path"`
-	Environment []string `toml:"environment"`
-	Debug       *string  `toml:"debug"`
-	Ldcache     *string  `toml:"ldcache"`
-	LoadKmods   bool     `toml:"load-kmods"`
-	NoPivot     bool     `toml:"no-pivot"`
-	NoCgroups   bool     `toml:"no-cgroups"`
-	User        *string  `toml:"user"`
-	Ldconfig    *string  `toml:"ldconfig"`
-}
-
-// HookConfig : options for the nvidia-container-toolkit.
-type HookConfig struct {
-	DisableRequire                 bool               `toml:"disable-require"`
-	SwarmResource                  *string            `toml:"swarm-resource"`
-	AcceptEnvvarUnprivileged       bool               `toml:"accept-nvidia-visible-devices-envvar-when-unprivileged"`
-	AcceptDeviceListAsVolumeMounts bool               `toml:"accept-nvidia-visible-devices-as-volume-mounts"`
-	SupportedDriverCapabilities    DriverCapabilities `toml:"supported-driver-capabilities"`
-
-	NvidiaContainerCLI CLIConfig `toml:"nvidia-container-cli"`
-}
-
-func getDefaultHookConfig() (config HookConfig) {
-	return HookConfig{
-		DisableRequire:                 false,
-		SwarmResource:                  nil,
-		AcceptEnvvarUnprivileged:       true,
-		AcceptDeviceListAsVolumeMounts: false,
-		SupportedDriverCapabilities:    allDriverCapabilities,
-		NvidiaContainerCLI: CLIConfig{
-			Root:        nil,
-			Path:        nil,
-			Environment: []string{},
-			Debug:       nil,
-			Ldcache:     nil,
-			LoadKmods:   true,
-			NoPivot:     false,
-			NoCgroups:   false,
-			User:        nil,
-			Ldconfig:    nil,
-		},
-	}
-}
-
-func getHookConfig() (config HookConfig) {
-	var err error
-
-	if len(*configflag) > 0 {
-		config = getDefaultHookConfig()
-		_, err = toml.DecodeFile(*configflag, &config)
-		if err != nil {
-			log.Panicln("couldn't open configuration file:", err)
-		}
-	} else {
-		for _, p := range defaultPaths {
-			config = getDefaultHookConfig()
-			_, err = toml.DecodeFile(p, &config)
-			if err == nil {
-				break
-			} else if !os.IsNotExist(err) {
-				log.Panicln("couldn't open default configuration file:", err)
-			}
-		}
-	}
-
-	if config.SupportedDriverCapabilities == all {
-		config.SupportedDriverCapabilities = allDriverCapabilities
-	}
-	// We ensure that the supported-driver-capabilites option is a subset of allDriverCapabilities
-	if intersection := allDriverCapabilities.Intersection(config.SupportedDriverCapabilities); intersection != config.SupportedDriverCapabilities {
-		configName := config.getConfigOption("SupportedDriverCapabilities")
-		log.Panicf("Invalid value for config option '%v'; %v (supported: %v)\n", configName, config.SupportedDriverCapabilities, allDriverCapabilities)
-	}
-
-	return config
-}
-
-// getConfigOption returns the toml config option associated with the
-// specified struct field.
-func (c HookConfig) getConfigOption(fieldName string) string {
-	t := reflect.TypeOf(c)
-	f, ok := t.FieldByName(fieldName)
-	if !ok {
-		return fieldName
-	}
-	v, ok := f.Tag.Lookup("toml")
-	if !ok {
-		return fieldName
-	}
-	return v
-}

cmd/nvidia-ctk/README.md

@@ -0,0 +1,73 @@
+# NVIDIA Container Toolkit CLI
+
+The NVIDIA Container Toolkit CLI `nvidia-ctk` provides a number of utilities that are useful for working with the NVIDIA Container Toolkit.
+
+## Functionality
+
+### Configure runtimes
+
+The `runtime` command of the `nvidia-ctk` CLI provides a set of utilities to related to the configuration
+and management of supported container engines.
+
+For example, running the following command:
+```bash
+nvidia-ctk runtime configure --set-as-default
+```
+will ensure that the NVIDIA Container Runtime is added as the default runtime to the default container
+engine.
+
+## Configure the NVIDIA Container Toolkit
+
+The `config` command of the `nvidia-ctk` CLI allows a user to display and manipulate the NVIDIA Container Toolkit
+configuration.
+
+For example, running the following command:
+```bash
+nvidia-ctk config default
+```
+will display the default config for the detected platform.
+
+Whereas
+```bash
+nvidia-ctk config
+```
+will display the effective NVIDIA Container Toolkit config using the configured config file, and running:
+
+Individual config options can be set by specifying these are key-value pairs to the `--set` argument:
+
+```bash
+nvidia-ctk config --set nvidia-container-cli.no-cgroups=true
+```
+
+By default, all commands output to `STDOUT`, but specifying the `--output` flag writes the config to the specified file.
+
+### Generate CDI specifications
+
+The [Container Device Interface (CDI)](https://tags.cncf.io/container-device-interface) provides
+a vendor-agnostic mechanism to make arbitrary devices accessible in containerized environments. To allow NVIDIA devices to be
+used in these environments, the NVIDIA Container Toolkit CLI includes functionality to generate a CDI specification for the
+available NVIDIA GPUs in a system.
+
+In order to generate the CDI specification for the available devices, run the following command:\
+```bash
+nvidia-ctk cdi generate
+```
+
+The default is to print the specification to STDOUT and a filename can be specified using the `--output` flag.
+
+The specification will contain a device entries as follows (where applicable):
+* An `nvidia.com/gpu=gpu{INDEX}` device for each non-MIG-enabled full GPU in the system
+* An `nvidia.com/gpu=mig{GPU_INDEX}:{MIG_INDEX}` device for each MIG-device in the system
+* A special device called `nvidia.com/gpu=all` which represents all available devices.
+
+For example, to generate the CDI specification in the default location where CDI-enabled tools such as `podman`, `containerd`, `cri-o`, or the NVIDIA Container Runtime can be configured to load it, the following command can be run:
+
+```bash
+sudo nvidia-ctk cdi generate --output=/etc/cdi/nvidia.yaml
+```
+(Note that `sudo` is used to ensure the correct permissions to write to the `/etc/cdi` folder)
+
+With the specification generated, a GPU can be requested by specifying the fully-qualified CDI device name. With `podman` as an exmaple:
+```bash
+podman run --rm -ti --device=nvidia.com/gpu=gpu0 ubuntu nvidia-smi -L
+```

cmd/nvidia-ctk/cdi/cdi.go

@@ -0,0 +1,55 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package cdi
+
+import (
+	"github.com/urfave/cli/v2"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-ctk/cdi/generate"
+	"github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-ctk/cdi/list"
+	"github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-ctk/cdi/transform"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+)
+
+type command struct {
+	logger logger.Interface
+}
+
+// NewCommand constructs an info command with the specified logger
+func NewCommand(logger logger.Interface) *cli.Command {
+	c := command{
+		logger: logger,
+	}
+	return c.build()
+}
+
+// build
+func (m command) build() *cli.Command {
+	// Create the 'hook' command
+	hook := cli.Command{
+		Name:  "cdi",
+		Usage: "Provide tools for interacting with Container Device Interface specifications",
+	}
+
+	hook.Subcommands = []*cli.Command{
+		generate.NewCommand(m.logger),
+		transform.NewCommand(m.logger),
+		list.NewCommand(m.logger),
+	}
+
+	return &hook
+}

cmd/nvidia-ctk/cdi/generate/generate.go

@@ -0,0 +1,280 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package generate
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/urfave/cli/v2"
+	cdi "tags.cncf.io/container-device-interface/pkg/parser"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/config"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/platform-support/tegra/csv"
+	"github.com/NVIDIA/nvidia-container-toolkit/pkg/nvcdi"
+	"github.com/NVIDIA/nvidia-container-toolkit/pkg/nvcdi/spec"
+	"github.com/NVIDIA/nvidia-container-toolkit/pkg/nvcdi/transform"
+)
+
+const (
+	allDeviceName = "all"
+)
+
+type command struct {
+	logger logger.Interface
+}
+
+type options struct {
+	output             string
+	format             string
+	deviceNameStrategy string
+	driverRoot         string
+	devRoot            string
+	nvidiaCTKPath      string
+	mode               string
+	vendor             string
+	class              string
+
+	librarySearchPaths cli.StringSlice
+
+	csv struct {
+		files          cli.StringSlice
+		ignorePatterns cli.StringSlice
+	}
+}
+
+// NewCommand constructs a generate-cdi command with the specified logger
+func NewCommand(logger logger.Interface) *cli.Command {
+	c := command{
+		logger: logger,
+	}
+	return c.build()
+}
+
+// build creates the CLI command
+func (m command) build() *cli.Command {
+	opts := options{}
+
+	// Create the 'generate-cdi' command
+	c := cli.Command{
+		Name:  "generate",
+		Usage: "Generate CDI specifications for use with CDI-enabled runtimes",
+		Before: func(c *cli.Context) error {
+			return m.validateFlags(c, &opts)
+		},
+		Action: func(c *cli.Context) error {
+			return m.run(c, &opts)
+		},
+	}
+
+	c.Flags = []cli.Flag{
+		&cli.StringFlag{
+			Name:        "output",
+			Usage:       "Specify the file to output the generated CDI specification to. If this is '' the specification is output to STDOUT",
+			Destination: &opts.output,
+		},
+		&cli.StringFlag{
+			Name:        "format",
+			Usage:       "The output format for the generated spec [json | yaml]. This overrides the format defined by the output file extension (if specified).",
+			Value:       spec.FormatYAML,
+			Destination: &opts.format,
+		},
+		&cli.StringFlag{
+			Name:        "mode",
+			Aliases:     []string{"discovery-mode"},
+			Usage:       "The mode to use when discovering the available entities. One of [auto | nvml | wsl]. If mode is set to 'auto' the mode will be determined based on the system configuration.",
+			Value:       nvcdi.ModeAuto,
+			Destination: &opts.mode,
+		},
+		&cli.StringFlag{
+			Name:        "dev-root",
+			Usage:       "Specify the root where `/dev` is located. If this is not specified, the driver-root is assumed.",
+			Destination: &opts.devRoot,
+		},
+		&cli.StringFlag{
+			Name:        "device-name-strategy",
+			Usage:       "Specify the strategy for generating device names. One of [index | uuid | type-index]",
+			Value:       nvcdi.DeviceNameStrategyIndex,
+			Destination: &opts.deviceNameStrategy,
+		},
+		&cli.StringFlag{
+			Name:        "driver-root",
+			Usage:       "Specify the NVIDIA GPU driver root to use when discovering the entities that should be included in the CDI specification.",
+			Destination: &opts.driverRoot,
+		},
+		&cli.StringSliceFlag{
+			Name:        "library-search-path",
+			Usage:       "Specify the path to search for libraries when discovering the entities that should be included in the CDI specification.\n\tNote: This option only applies to CSV mode.",
+			Destination: &opts.librarySearchPaths,
+		},
+		&cli.StringFlag{
+			Name:        "nvidia-ctk-path",
+			Usage:       "Specify the path to use for the nvidia-ctk in the generated CDI specification. If this is left empty, the path will be searched.",
+			Destination: &opts.nvidiaCTKPath,
+		},
+		&cli.StringFlag{
+			Name:        "vendor",
+			Aliases:     []string{"cdi-vendor"},
+			Usage:       "the vendor string to use for the generated CDI specification.",
+			Value:       "nvidia.com",
+			Destination: &opts.vendor,
+		},
+		&cli.StringFlag{
+			Name:        "class",
+			Aliases:     []string{"cdi-class"},
+			Usage:       "the class string to use for the generated CDI specification.",
+			Value:       "gpu",
+			Destination: &opts.class,
+		},
+		&cli.StringSliceFlag{
+			Name:        "csv.file",
+			Usage:       "The path to the list of CSV files to use when generating the CDI specification in CSV mode.",
+			Value:       cli.NewStringSlice(csv.DefaultFileList()...),
+			Destination: &opts.csv.files,
+		},
+		&cli.StringSliceFlag{
+			Name:        "csv.ignore-pattern",
+			Usage:       "Specify a pattern the CSV mount specifications.",
+			Destination: &opts.csv.ignorePatterns,
+		},
+	}
+
+	return &c
+}
+
+func (m command) validateFlags(c *cli.Context, opts *options) error {
+	opts.format = strings.ToLower(opts.format)
+	switch opts.format {
+	case spec.FormatJSON:
+	case spec.FormatYAML:
+	default:
+		return fmt.Errorf("invalid output format: %v", opts.format)
+	}
+
+	opts.mode = strings.ToLower(opts.mode)
+	switch opts.mode {
+	case nvcdi.ModeAuto:
+	case nvcdi.ModeCSV:
+	case nvcdi.ModeNvml:
+	case nvcdi.ModeWsl:
+	case nvcdi.ModeManagement:
+	default:
+		return fmt.Errorf("invalid discovery mode: %v", opts.mode)
+	}
+
+	_, err := nvcdi.NewDeviceNamer(opts.deviceNameStrategy)
+	if err != nil {
+		return err
+	}
+
+	opts.nvidiaCTKPath = config.ResolveNVIDIACTKPath(m.logger, opts.nvidiaCTKPath)
+
+	if outputFileFormat := formatFromFilename(opts.output); outputFileFormat != "" {
+		m.logger.Debugf("Inferred output format as %q from output file name", outputFileFormat)
+		if !c.IsSet("format") {
+			opts.format = outputFileFormat
+		} else if outputFileFormat != opts.format {
+			m.logger.Warningf("Requested output format %q does not match format implied by output file name: %q", opts.format, outputFileFormat)
+		}
+	}
+
+	if err := cdi.ValidateVendorName(opts.vendor); err != nil {
+		return fmt.Errorf("invalid CDI vendor name: %v", err)
+	}
+	if err := cdi.ValidateClassName(opts.class); err != nil {
+		return fmt.Errorf("invalid CDI class name: %v", err)
+	}
+	return nil
+}
+
+func (m command) run(c *cli.Context, opts *options) error {
+	spec, err := m.generateSpec(opts)
+	if err != nil {
+		return fmt.Errorf("failed to generate CDI spec: %v", err)
+	}
+	m.logger.Infof("Generated CDI spec with version %v", spec.Raw().Version)
+
+	if opts.output == "" {
+		_, err := spec.WriteTo(os.Stdout)
+		if err != nil {
+			return fmt.Errorf("failed to write CDI spec to STDOUT: %v", err)
+		}
+		return nil
+	}
+
+	return spec.Save(opts.output)
+}
+
+func formatFromFilename(filename string) string {
+	ext := filepath.Ext(filename)
+	switch strings.ToLower(ext) {
+	case ".json":
+		return spec.FormatJSON
+	case ".yaml", ".yml":
+		return spec.FormatYAML
+	}
+
+	return ""
+}
+
+func (m command) generateSpec(opts *options) (spec.Interface, error) {
+	deviceNamer, err := nvcdi.NewDeviceNamer(opts.deviceNameStrategy)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create device namer: %v", err)
+	}
+
+	cdilib, err := nvcdi.New(
+		nvcdi.WithLogger(m.logger),
+		nvcdi.WithDriverRoot(opts.driverRoot),
+		nvcdi.WithDevRoot(opts.devRoot),
+		nvcdi.WithNVIDIACTKPath(opts.nvidiaCTKPath),
+		nvcdi.WithDeviceNamer(deviceNamer),
+		nvcdi.WithMode(opts.mode),
+		nvcdi.WithLibrarySearchPaths(opts.librarySearchPaths.Value()),
+		nvcdi.WithCSVFiles(opts.csv.files.Value()),
+		nvcdi.WithCSVIgnorePatterns(opts.csv.ignorePatterns.Value()),
+	)
+	if err != nil {
+		return nil, fmt.Errorf("failed to create CDI library: %v", err)
+	}
+
+	deviceSpecs, err := cdilib.GetAllDeviceSpecs()
+	if err != nil {
+		return nil, fmt.Errorf("failed to create device CDI specs: %v", err)
+	}
+
+	commonEdits, err := cdilib.GetCommonEdits()
+	if err != nil {
+		return nil, fmt.Errorf("failed to create edits common for entities: %v", err)
+	}
+
+	return spec.New(
+		spec.WithVendor(opts.vendor),
+		spec.WithClass(opts.class),
+		spec.WithDeviceSpecs(deviceSpecs),
+		spec.WithEdits(*commonEdits.ContainerEdits),
+		spec.WithFormat(opts.format),
+		spec.WithMergedDeviceOptions(
+			transform.WithName(allDeviceName),
+			transform.WithSkipIfExists(true),
+		),
+		spec.WithPermissions(0644),
+	)
+}

cmd/nvidia-ctk/cdi/list/list.go

@@ -0,0 +1,87 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package list
+
+import (
+	"fmt"
+
+	"github.com/urfave/cli/v2"
+	"tags.cncf.io/container-device-interface/pkg/cdi"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+)
+
+type command struct {
+	logger logger.Interface
+}
+
+type config struct{}
+
+// NewCommand constructs a cdi list command with the specified logger
+func NewCommand(logger logger.Interface) *cli.Command {
+	c := command{
+		logger: logger,
+	}
+	return c.build()
+}
+
+// build creates the CLI command
+func (m command) build() *cli.Command {
+	cfg := config{}
+
+	// Create the command
+	c := cli.Command{
+		Name:  "list",
+		Usage: "List the available CDI devices",
+		Before: func(c *cli.Context) error {
+			return m.validateFlags(c, &cfg)
+		},
+		Action: func(c *cli.Context) error {
+			return m.run(c, &cfg)
+		},
+	}
+
+	c.Flags = []cli.Flag{}
+
+	return &c
+}
+
+func (m command) validateFlags(c *cli.Context, cfg *config) error {
+	return nil
+}
+
+func (m command) run(c *cli.Context, cfg *config) error {
+	registry, err := cdi.NewCache(
+		cdi.WithAutoRefresh(false),
+		cdi.WithSpecDirs(cdi.DefaultSpecDirs...),
+	)
+	if err != nil {
+		return fmt.Errorf("failed to create CDI cache: %v", err)
+	}
+
+	refreshErr := registry.Refresh()
+	devices := registry.ListDevices()
+	m.logger.Infof("Found %d CDI devices", len(devices))
+	if refreshErr != nil {
+		m.logger.Warningf("Refreshing the CDI registry returned the following error(s): %v", refreshErr)
+	}
+	for _, device := range devices {
+		fmt.Printf("%s\n", device)
+	}
+
+	return nil
+}

cmd/nvidia-ctk/cdi/transform/root/root.go

@@ -0,0 +1,169 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package root
+
+import (
+	"fmt"
+	"io"
+	"os"
+
+	"github.com/urfave/cli/v2"
+	"tags.cncf.io/container-device-interface/pkg/cdi"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+	"github.com/NVIDIA/nvidia-container-toolkit/pkg/nvcdi/spec"
+	transformroot "github.com/NVIDIA/nvidia-container-toolkit/pkg/nvcdi/transform/root"
+)
+
+type command struct {
+	logger logger.Interface
+}
+
+type transformOptions struct {
+	input  string
+	output string
+}
+
+type options struct {
+	transformOptions
+	from       string
+	to         string
+	relativeTo string
+}
+
+// NewCommand constructs a generate-cdi command with the specified logger
+func NewCommand(logger logger.Interface) *cli.Command {
+	c := command{
+		logger: logger,
+	}
+	return c.build()
+}
+
+// build creates the CLI command
+func (m command) build() *cli.Command {
+	opts := options{}
+
+	c := cli.Command{
+		Name:  "root",
+		Usage: "Apply a root transform to a CDI specification",
+		Before: func(c *cli.Context) error {
+			return m.validateFlags(c, &opts)
+		},
+		Action: func(c *cli.Context) error {
+			return m.run(c, &opts)
+		},
+	}
+
+	c.Flags = []cli.Flag{
+		&cli.StringFlag{
+			Name:        "from",
+			Usage:       "specify the root to be transformed",
+			Destination: &opts.from,
+		},
+		&cli.StringFlag{
+			Name:        "input",
+			Usage:       "Specify the file to read the CDI specification from. If this is '-' the specification is read from STDIN",
+			Value:       "-",
+			Destination: &opts.input,
+		},
+		&cli.StringFlag{
+			Name:        "output",
+			Usage:       "Specify the file to output the generated CDI specification to. If this is '' the specification is output to STDOUT",
+			Destination: &opts.output,
+		},
+		&cli.StringFlag{
+			Name:        "relative-to",
+			Usage:       "specify whether the transform is relative to the host or to the container. One of [ host | container ]",
+			Value:       "host",
+			Destination: &opts.relativeTo,
+		},
+		&cli.StringFlag{
+			Name:        "to",
+			Usage:       "specify the replacement root. If this is the same as the from root, the transform is a no-op.",
+			Value:       "",
+			Destination: &opts.to,
+		},
+	}
+
+	return &c
+}
+
+func (m command) validateFlags(c *cli.Context, opts *options) error {
+	switch opts.relativeTo {
+	case "host":
+	case "container":
+	default:
+		return fmt.Errorf("invalid --relative-to value: %v", opts.relativeTo)
+	}
+	return nil
+}
+
+func (m command) run(c *cli.Context, opts *options) error {
+	spec, err := opts.Load()
+	if err != nil {
+		return fmt.Errorf("failed to load CDI specification: %w", err)
+	}
+
+	err = transformroot.New(
+		transformroot.WithRoot(opts.from),
+		transformroot.WithTargetRoot(opts.to),
+		transformroot.WithRelativeTo(opts.relativeTo),
+	).Transform(spec.Raw())
+	if err != nil {
+		return fmt.Errorf("failed to transform CDI specification: %w", err)
+	}
+
+	return opts.Save(spec)
+}
+
+// Load lodas the input CDI specification
+func (o transformOptions) Load() (spec.Interface, error) {
+	contents, err := o.getContents()
+	if err != nil {
+		return nil, fmt.Errorf("failed to read spec contents: %v", err)
+	}
+
+	raw, err := cdi.ParseSpec(contents)
+	if err != nil {
+		return nil, fmt.Errorf("failed to parse CDI spec: %v", err)
+	}
+
+	return spec.New(
+		spec.WithRawSpec(raw),
+	)
+}
+
+func (o transformOptions) getContents() ([]byte, error) {
+	if o.input == "-" {
+		return io.ReadAll(os.Stdin)
+	}
+
+	return os.ReadFile(o.input)
+}
+
+// Save saves the CDI specification to the output file
+func (o transformOptions) Save(s spec.Interface) error {
+	if o.output == "" {
+		_, err := s.WriteTo(os.Stdout)
+		if err != nil {
+			return fmt.Errorf("failed to write CDI spec to STDOUT: %v", err)
+		}
+		return nil
+	}
+
+	return s.Save(o.output)
+}

cmd/nvidia-ctk/cdi/transform/transform.go

@@ -0,0 +1,52 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package transform
+
+import (
+	"github.com/urfave/cli/v2"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-ctk/cdi/transform/root"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+)
+
+type command struct {
+	logger logger.Interface
+}
+
+// NewCommand constructs a command with the specified logger
+func NewCommand(logger logger.Interface) *cli.Command {
+	c := command{
+		logger: logger,
+	}
+	return c.build()
+}
+
+// build creates the CLI command
+func (m command) build() *cli.Command {
+	c := cli.Command{
+		Name:  "transform",
+		Usage: "Apply a transform to a CDI specification",
+	}
+
+	c.Flags = []cli.Flag{}
+
+	c.Subcommands = []*cli.Command{
+		root.NewCommand(m.logger),
+	}
+
+	return &c
+}

cmd/nvidia-ctk/config/config.go

@@ -0,0 +1,213 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package config
+
+import (
+	"errors"
+	"fmt"
+	"reflect"
+	"strconv"
+	"strings"
+
+	"github.com/urfave/cli/v2"
+
+	createdefault "github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-ctk/config/create-default"
+	"github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-ctk/config/flags"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/config"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+)
+
+type command struct {
+	logger logger.Interface
+}
+
+// options stores the subcommand options
+type options struct {
+	flags.Options
+	sets cli.StringSlice
+}
+
+// NewCommand constructs an config command with the specified logger
+func NewCommand(logger logger.Interface) *cli.Command {
+	c := command{
+		logger: logger,
+	}
+	return c.build()
+}
+
+// build
+func (m command) build() *cli.Command {
+	opts := options{}
+
+	// Create the 'config' command
+	c := cli.Command{
+		Name:  "config",
+		Usage: "Interact with the NVIDIA Container Toolkit configuration",
+		Action: func(ctx *cli.Context) error {
+			return run(ctx, &opts)
+		},
+	}
+
+	c.Flags = []cli.Flag{
+		&cli.StringFlag{
+			Name:        "config-file",
+			Aliases:     []string{"config", "c"},
+			Usage:       "Specify the config file to modify.",
+			Value:       config.GetConfigFilePath(),
+			Destination: &opts.Config,
+		},
+		&cli.StringSliceFlag{
+			Name:        "set",
+			Usage:       "Set a config value using the pattern key=value. If value is empty, this is equivalent to specifying the same key in unset. This flag can be specified multiple times",
+			Destination: &opts.sets,
+		},
+		&cli.BoolFlag{
+			Name:        "in-place",
+			Aliases:     []string{"i"},
+			Usage:       "Modify the config file in-place",
+			Destination: &opts.InPlace,
+		},
+		&cli.StringFlag{
+			Name:        "output",
+			Aliases:     []string{"o"},
+			Usage:       "Specify the output file to write to; If not specified, the output is written to stdout",
+			Destination: &opts.Output,
+		},
+	}
+
+	c.Subcommands = []*cli.Command{
+		createdefault.NewCommand(m.logger),
+	}
+
+	return &c
+}
+
+func run(c *cli.Context, opts *options) error {
+	cfgToml, err := config.New(
+		config.WithConfigFile(opts.Config),
+	)
+	if err != nil {
+		return fmt.Errorf("unable to create config: %v", err)
+	}
+
+	for _, set := range opts.sets.Value() {
+		key, value, err := setFlagToKeyValue(set)
+		if err != nil {
+			return fmt.Errorf("invalid --set option %v: %w", set, err)
+		}
+		cfgToml.Set(key, value)
+	}
+
+	if err := opts.EnsureOutputFolder(); err != nil {
+		return fmt.Errorf("failed to create output directory: %v", err)
+	}
+	output, err := opts.CreateOutput()
+	if err != nil {
+		return fmt.Errorf("failed to open output file: %v", err)
+	}
+	defer output.Close()
+
+	if _, err := cfgToml.Save(output); err != nil {
+		return fmt.Errorf("failed to save config: %v", err)
+	}
+
+	return nil
+}
+
+var errInvalidConfigOption = errors.New("invalid config option")
+var errUndefinedField = errors.New("undefined field")
+var errInvalidFormat = errors.New("invalid format")
+
+// setFlagToKeyValue converts a --set flag to a key-value pair.
+// The set flag is of the form key[=value], with the value being optional if key refers to a
+// boolean config option.
+func setFlagToKeyValue(setFlag string) (string, interface{}, error) {
+	setParts := strings.SplitN(setFlag, "=", 2)
+	key := setParts[0]
+
+	field, err := getField(key)
+	if err != nil {
+		return key, nil, fmt.Errorf("%w: %w", errInvalidConfigOption, err)
+	}
+
+	kind := field.Kind()
+	if len(setParts) != 2 {
+		if kind == reflect.Bool {
+			return key, true, nil
+		}
+		return key, nil, fmt.Errorf("%w: expected key=value; got %v", errInvalidFormat, setFlag)
+	}
+
+	value := setParts[1]
+	switch kind {
+	case reflect.Bool:
+		b, err := strconv.ParseBool(value)
+		if err != nil {
+			return key, value, fmt.Errorf("%w: %w", errInvalidFormat, err)
+		}
+		return key, b, err
+	case reflect.String:
+		return key, value, nil
+	case reflect.Slice:
+		valueParts := strings.Split(value, ",")
+		switch field.Elem().Kind() {
+		case reflect.String:
+			return key, valueParts, nil
+		case reflect.Int:
+			var output []int64
+			for _, v := range valueParts {
+				vi, err := strconv.ParseInt(v, 10, 0)
+				if err != nil {
+					return key, nil, fmt.Errorf("%w: %w", errInvalidFormat, err)
+				}
+				output = append(output, vi)
+			}
+			return key, output, nil
+		}
+	}
+	return key, nil, fmt.Errorf("unsupported type for %v (%v)", setParts, kind)
+}
+
+func getField(key string) (reflect.Type, error) {
+	s, err := getStruct(reflect.TypeOf(config.Config{}), strings.Split(key, ".")...)
+	if err != nil {
+		return nil, err
+	}
+	return s.Type, err
+}
+
+func getStruct(current reflect.Type, paths ...string) (reflect.StructField, error) {
+	if len(paths) < 1 {
+		return reflect.StructField{}, fmt.Errorf("%w: no fields selected", errUndefinedField)
+	}
+	tomlField := paths[0]
+	for i := 0; i < current.NumField(); i++ {
+		f := current.Field(i)
+		v, ok := f.Tag.Lookup("toml")
+		if !ok {
+			continue
+		}
+		if v != tomlField {
+			continue
+		}
+		if len(paths) == 1 {
+			return f, nil
+		}
+		return getStruct(f.Type, paths[1:]...)
+	}
+	return reflect.StructField{}, fmt.Errorf("%w: %q", errUndefinedField, tomlField)
+}

cmd/nvidia-ctk/config/config_test.go

@@ -0,0 +1,130 @@
+/**
+# Copyright (c) NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package config
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestSetFlagToKeyValue(t *testing.T) {
+	// TODO: We need to enable this test again since switching to reflect.
+	testCases := []struct {
+		description   string
+		setFlag       string
+		expectedKey   string
+		expectedValue interface{}
+		expectedError error
+	}{
+		{
+			description:   "option not present returns an error",
+			setFlag:       "undefined=new-value",
+			expectedKey:   "undefined",
+			expectedError: errInvalidConfigOption,
+		},
+		{
+			description:   "undefined nexted option returns error",
+			setFlag:       "nvidia-container-cli.undefined",
+			expectedKey:   "nvidia-container-cli.undefined",
+			expectedError: errInvalidConfigOption,
+		},
+		{
+			description:   "boolean option assumes true",
+			setFlag:       "disable-require",
+			expectedKey:   "disable-require",
+			expectedValue: true,
+		},
+		{
+			description:   "boolean option returns true",
+			setFlag:       "disable-require=true",
+			expectedKey:   "disable-require",
+			expectedValue: true,
+		},
+		{
+			description:   "boolean option returns false",
+			setFlag:       "disable-require=false",
+			expectedKey:   "disable-require",
+			expectedValue: false,
+		},
+		{
+			description:   "invalid boolean option returns error",
+			setFlag:       "disable-require=something",
+			expectedKey:   "disable-require",
+			expectedValue: "something",
+			expectedError: errInvalidFormat,
+		},
+		{
+			description:   "string option requires value",
+			setFlag:       "swarm-resource",
+			expectedKey:   "swarm-resource",
+			expectedValue: nil,
+			expectedError: errInvalidFormat,
+		},
+		{
+			description:   "string option returns value",
+			setFlag:       "swarm-resource=string-value",
+			expectedKey:   "swarm-resource",
+			expectedValue: "string-value",
+		},
+		{
+			description:   "string option returns value with equals",
+			setFlag:       "swarm-resource=string-value=more",
+			expectedKey:   "swarm-resource",
+			expectedValue: "string-value=more",
+		},
+		{
+			description:   "string option treats bool value as string",
+			setFlag:       "swarm-resource=true",
+			expectedKey:   "swarm-resource",
+			expectedValue: "true",
+		},
+		{
+			description:   "string option treats int value as string",
+			setFlag:       "swarm-resource=5",
+			expectedKey:   "swarm-resource",
+			expectedValue: "5",
+		},
+		{
+			description:   "[]string option returns single value",
+			setFlag:       "nvidia-container-cli.environment=string-value",
+			expectedKey:   "nvidia-container-cli.environment",
+			expectedValue: []string{"string-value"},
+		},
+		{
+			description:   "[]string option returns multiple values",
+			setFlag:       "nvidia-container-cli.environment=first,second",
+			expectedKey:   "nvidia-container-cli.environment",
+			expectedValue: []string{"first", "second"},
+		},
+		{
+			description:   "[]string option returns values with equals",
+			setFlag:       "nvidia-container-cli.environment=first=1,second=2",
+			expectedKey:   "nvidia-container-cli.environment",
+			expectedValue: []string{"first=1", "second=2"},
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.description, func(t *testing.T) {
+			k, v, err := setFlagToKeyValue(tc.setFlag)
+			require.ErrorIs(t, err, tc.expectedError)
+			require.EqualValues(t, tc.expectedKey, k)
+			require.EqualValues(t, tc.expectedValue, v)
+		})
+	}
+}

cmd/nvidia-ctk/config/create-default/create-default.go

@@ -0,0 +1,94 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package defaultsubcommand
+
+import (
+	"fmt"
+
+	"github.com/urfave/cli/v2"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-ctk/config/flags"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/config"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+)
+
+type command struct {
+	logger logger.Interface
+}
+
+// NewCommand constructs a default command with the specified logger
+func NewCommand(logger logger.Interface) *cli.Command {
+	c := command{
+		logger: logger,
+	}
+	return c.build()
+}
+
+// build creates the CLI command
+func (m command) build() *cli.Command {
+	opts := flags.Options{}
+
+	// Create the 'default' command
+	c := cli.Command{
+		Name:    "default",
+		Aliases: []string{"create-default", "generate-default"},
+		Usage:   "Generate the default NVIDIA Container Toolkit configuration file",
+		Before: func(c *cli.Context) error {
+			return m.validateFlags(c, &opts)
+		},
+		Action: func(c *cli.Context) error {
+			return m.run(c, &opts)
+		},
+	}
+
+	c.Flags = []cli.Flag{
+		&cli.StringFlag{
+			Name:        "output",
+			Aliases:     []string{"o"},
+			Usage:       "Specify the output file to write to; If not specified, the output is written to stdout",
+			Destination: &opts.Output,
+		},
+	}
+
+	return &c
+}
+
+func (m command) validateFlags(c *cli.Context, opts *flags.Options) error {
+	return opts.Validate()
+}
+
+func (m command) run(c *cli.Context, opts *flags.Options) error {
+	cfgToml, err := config.New()
+	if err != nil {
+		return fmt.Errorf("unable to load or create config: %v", err)
+	}
+
+	if err := opts.EnsureOutputFolder(); err != nil {
+		return fmt.Errorf("failed to create output directory: %v", err)
+	}
+	output, err := opts.CreateOutput()
+	if err != nil {
+		return fmt.Errorf("failed to open output file: %v", err)
+	}
+	defer output.Close()
+
+	if _, err = cfgToml.Save(output); err != nil {
+		return fmt.Errorf("failed to write output: %v", err)
+	}
+
+	return nil
+}

cmd/nvidia-ctk/config/flags/options.go

@@ -0,0 +1,82 @@
+/**
+# Copyright (c) NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package flags
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+)
+
+// Options stores options for the config commands
+type Options struct {
+	Config  string
+	Output  string
+	InPlace bool
+}
+
+// Validate checks whether the options are valid.
+func (o Options) Validate() error {
+	if o.InPlace && o.Output != "" {
+		return fmt.Errorf("cannot specify both --in-place and --output")
+	}
+
+	return nil
+}
+
+// GetOutput returns the effective output
+func (o Options) GetOutput() string {
+	if o.InPlace {
+		return o.Config
+	}
+
+	return o.Output
+}
+
+// EnsureOutputFolder creates the output folder if it does not exist.
+// If the output folder is not specified (i.e. output to STDOUT), it is ignored.
+func (o Options) EnsureOutputFolder() error {
+	output := o.GetOutput()
+	if output == "" {
+		return nil
+	}
+	if dir := filepath.Dir(output); dir != "" {
+		return os.MkdirAll(dir, 0755)
+	}
+	return nil
+}
+
+// CreateOutput creates the writer for the output.
+func (o Options) CreateOutput() (io.WriteCloser, error) {
+	output := o.GetOutput()
+	if output == "" {
+		return nullCloser{os.Stdout}, nil
+	}
+
+	return os.Create(output)
+}
+
+// nullCloser is a writer that does nothing on Close.
+type nullCloser struct {
+	io.Writer
+}
+
+// Close is a no-op for a nullCloser.
+func (d nullCloser) Close() error {
+	return nil
+}

cmd/nvidia-ctk/hook/chmod/chmod.go

@@ -0,0 +1,160 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package chmod
+
+import (
+	"errors"
+	"fmt"
+	"io/fs"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+
+	"github.com/urfave/cli/v2"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/oci"
+)
+
+type command struct {
+	logger logger.Interface
+}
+
+type config struct {
+	paths         cli.StringSlice
+	modeStr       string
+	mode          fs.FileMode
+	containerSpec string
+}
+
+// NewCommand constructs a chmod command with the specified logger
+func NewCommand(logger logger.Interface) *cli.Command {
+	c := command{
+		logger: logger,
+	}
+	return c.build()
+}
+
+// build the chmod command
+func (m command) build() *cli.Command {
+	cfg := config{}
+
+	// Create the 'chmod' command
+	c := cli.Command{
+		Name:  "chmod",
+		Usage: "Set the permissions of folders in the container by running chmod. The container root is prefixed to the specified paths.",
+		Before: func(c *cli.Context) error {
+			return validateFlags(c, &cfg)
+		},
+		Action: func(c *cli.Context) error {
+			return m.run(c, &cfg)
+		},
+	}
+
+	c.Flags = []cli.Flag{
+		&cli.StringSliceFlag{
+			Name:        "path",
+			Usage:       "Specify a path to apply the specified mode to",
+			Destination: &cfg.paths,
+		},
+		&cli.StringFlag{
+			Name:        "mode",
+			Usage:       "Specify the file mode",
+			Destination: &cfg.modeStr,
+		},
+		&cli.StringFlag{
+			Name:        "container-spec",
+			Usage:       "Specify the path to the OCI container spec. If empty or '-' the spec will be read from STDIN",
+			Destination: &cfg.containerSpec,
+		},
+	}
+
+	return &c
+}
+
+func validateFlags(c *cli.Context, cfg *config) error {
+	if strings.TrimSpace(cfg.modeStr) == "" {
+		return fmt.Errorf("a non-empty mode must be specified")
+	}
+
+	modeInt, err := strconv.ParseUint(cfg.modeStr, 8, 32)
+	if err != nil {
+		return fmt.Errorf("failed to parse mode as octal: %v", err)
+	}
+	cfg.mode = fs.FileMode(modeInt)
+
+	for _, p := range cfg.paths.Value() {
+		if strings.TrimSpace(p) == "" {
+			return fmt.Errorf("paths must not be empty")
+		}
+	}
+
+	return nil
+}
+
+func (m command) run(c *cli.Context, cfg *config) error {
+	s, err := oci.LoadContainerState(cfg.containerSpec)
+	if err != nil {
+		return fmt.Errorf("failed to load container state: %v", err)
+	}
+
+	containerRoot, err := s.GetContainerRoot()
+	if err != nil {
+		return fmt.Errorf("failed to determined container root: %v", err)
+	}
+	if containerRoot == "" {
+		return fmt.Errorf("empty container root detected")
+	}
+
+	paths := m.getPaths(containerRoot, cfg.paths.Value(), cfg.mode)
+	if len(paths) == 0 {
+		m.logger.Debugf("No paths specified; exiting")
+		return nil
+	}
+
+	for _, path := range paths {
+		err = os.Chmod(path, cfg.mode)
+		// in some cases this is not an issue (e.g. whole /dev mounted), see #143
+		if errors.Is(err, fs.ErrPermission) {
+			m.logger.Debugf("Ignoring permission error with chmod: %v", err)
+			err = nil
+		}
+	}
+
+	return err
+}
+
+// getPaths updates the specified paths relative to the root.
+func (m command) getPaths(root string, paths []string, desiredMode fs.FileMode) []string {
+	var pathsInRoot []string
+	for _, f := range paths {
+		path := filepath.Join(root, f)
+		stat, err := os.Stat(path)
+		if err != nil {
+			m.logger.Debugf("Skipping path %q: %v", path, err)
+			continue
+		}
+		if (stat.Mode()&(fs.ModePerm|fs.ModeSetuid|fs.ModeSetgid|fs.ModeSticky))^desiredMode == 0 {
+			m.logger.Debugf("Skipping path %q: already desired mode", path)
+			continue
+		}
+		pathsInRoot = append(pathsInRoot, path)
+	}
+
+	return pathsInRoot
+}

cmd/nvidia-ctk/hook/create-symlinks/create-symlinks.go

@@ -0,0 +1,231 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package symlinks
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/urfave/cli/v2"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/lookup"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/lookup/symlinks"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/oci"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/platform-support/tegra/csv"
+)
+
+type command struct {
+	logger logger.Interface
+}
+
+type config struct {
+	hostRoot      string
+	filenames     cli.StringSlice
+	links         cli.StringSlice
+	containerSpec string
+}
+
+// NewCommand constructs a hook command with the specified logger
+func NewCommand(logger logger.Interface) *cli.Command {
+	c := command{
+		logger: logger,
+	}
+	return c.build()
+}
+
+// build
+func (m command) build() *cli.Command {
+	cfg := config{}
+
+	// Create the '' command
+	c := cli.Command{
+		Name:  "create-symlinks",
+		Usage: "A hook to create symlinks in the container. This can be used to process CSV mount specs",
+		Action: func(c *cli.Context) error {
+			return m.run(c, &cfg)
+		},
+	}
+
+	c.Flags = []cli.Flag{
+		&cli.StringFlag{
+			Name:        "host-root",
+			Usage:       "The root on the host filesystem to use to resolve symlinks",
+			Destination: &cfg.hostRoot,
+		},
+		&cli.StringSliceFlag{
+			Name:        "csv-filename",
+			Usage:       "Specify a (CSV) filename to process",
+			Destination: &cfg.filenames,
+		},
+		&cli.StringSliceFlag{
+			Name:        "link",
+			Usage:       "Specify a specific link to create. The link is specified as target::link",
+			Destination: &cfg.links,
+		},
+		&cli.StringFlag{
+			Name:        "container-spec",
+			Usage:       "Specify the path to the OCI container spec. If empty or '-' the spec will be read from STDIN",
+			Destination: &cfg.containerSpec,
+		},
+	}
+
+	return &c
+}
+
+func (m command) run(c *cli.Context, cfg *config) error {
+	s, err := oci.LoadContainerState(cfg.containerSpec)
+	if err != nil {
+		return fmt.Errorf("failed to load container state: %v", err)
+	}
+
+	containerRoot, err := s.GetContainerRoot()
+	if err != nil {
+		return fmt.Errorf("failed to determined container root: %v", err)
+	}
+
+	csvFiles := cfg.filenames.Value()
+
+	chainLocator := lookup.NewSymlinkChainLocator(
+		lookup.WithLogger(m.logger),
+		lookup.WithRoot(cfg.hostRoot),
+	)
+
+	var candidates []string
+	for _, file := range csvFiles {
+		mountSpecs, err := csv.NewCSVFileParser(m.logger, file).Parse()
+		if err != nil {
+			m.logger.Debugf("Skipping CSV file %v: %v", file, err)
+			continue
+		}
+
+		for _, ms := range mountSpecs {
+			if ms.Type != csv.MountSpecSym {
+				continue
+			}
+			targets, err := chainLocator.Locate(ms.Path)
+			if err != nil {
+				m.logger.Warningf("Failed to locate symlink %v", ms.Path)
+			}
+			candidates = append(candidates, targets...)
+		}
+	}
+
+	created := make(map[string]bool)
+	// candidates is a list of absolute paths to symlinks in a chain, or the final target of the chain.
+	for _, candidate := range candidates {
+		target, err := symlinks.Resolve(candidate)
+		if err != nil {
+			m.logger.Debugf("Skipping invalid link: %v", err)
+			continue
+		} else if target == candidate {
+			m.logger.Debugf("%v is not a symlink", candidate)
+			continue
+		}
+
+		err = m.createLink(created, cfg.hostRoot, containerRoot, target, candidate)
+		if err != nil {
+			m.logger.Warningf("Failed to create link %v: %v", []string{target, candidate}, err)
+		}
+	}
+
+	links := cfg.links.Value()
+	for _, l := range links {
+		parts := strings.Split(l, "::")
+		if len(parts) != 2 {
+			m.logger.Warningf("Invalid link specification %v", l)
+			continue
+		}
+
+		err := m.createLink(created, cfg.hostRoot, containerRoot, parts[0], parts[1])
+		if err != nil {
+			m.logger.Warningf("Failed to create link %v: %v", parts, err)
+		}
+	}
+
+	return nil
+
+}
+
+func (m command) createLink(created map[string]bool, hostRoot string, containerRoot string, target string, link string) error {
+	linkPath, err := changeRoot(hostRoot, containerRoot, link)
+	if err != nil {
+		m.logger.Warningf("Failed to resolve path for link %v relative to %v: %v", link, containerRoot, err)
+	}
+	if created[linkPath] {
+		m.logger.Debugf("Link %v already created", linkPath)
+		return nil
+	}
+
+	targetPath, err := changeRoot(hostRoot, "/", target)
+	if err != nil {
+		m.logger.Warningf("Failed to resolve path for target %v relative to %v: %v", target, "/", err)
+	}
+
+	m.logger.Infof("Symlinking %v to %v", linkPath, targetPath)
+	err = os.MkdirAll(filepath.Dir(linkPath), 0755)
+	if err != nil {
+		return fmt.Errorf("failed to create directory: %v", err)
+	}
+	err = os.Symlink(target, linkPath)
+	if err != nil {
+		return fmt.Errorf("failed to create symlink: %v", err)
+	}
+
+	return nil
+}
+
+func changeRoot(current string, new string, path string) (string, error) {
+	if !filepath.IsAbs(path) {
+		return path, nil
+	}
+
+	relative := path
+	if current != "" {
+		r, err := filepath.Rel(current, path)
+		if err != nil {
+			return "", err
+		}
+		relative = r
+	}
+
+	return filepath.Join(new, relative), nil
+}
+
+// Locate returns the link target of the specified filename or an empty slice if the
+// specified filename is not a symlink.
+func (m command) Locate(filename string) ([]string, error) {
+	info, err := os.Lstat(filename)
+	if err != nil {
+		return nil, fmt.Errorf("failed to get file info: %v", info)
+	}
+	if info.Mode()&os.ModeSymlink == 0 {
+		m.logger.Debugf("%v is not a symlink", filename)
+		return nil, nil
+	}
+
+	target, err := os.Readlink(filename)
+	if err != nil {
+		return nil, fmt.Errorf("error checking symlink: %v", err)
+	}
+
+	m.logger.Debugf("Resolved link: '%v' => '%v'", filename, target)
+
+	return []string{target}, nil
+}

cmd/nvidia-ctk/hook/hook.go

@@ -0,0 +1,56 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package hook
+
+import (
+	chmod "github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-ctk/hook/chmod"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+
+	"github.com/urfave/cli/v2"
+
+	symlinks "github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-ctk/hook/create-symlinks"
+	ldcache "github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-ctk/hook/update-ldcache"
+)
+
+type hookCommand struct {
+	logger logger.Interface
+}
+
+// NewCommand constructs a hook command with the specified logger
+func NewCommand(logger logger.Interface) *cli.Command {
+	c := hookCommand{
+		logger: logger,
+	}
+	return c.build()
+}
+
+// build
+func (m hookCommand) build() *cli.Command {
+	// Create the 'hook' command
+	hook := cli.Command{
+		Name:  "hook",
+		Usage: "A collection of hooks that may be injected into an OCI spec",
+	}
+
+	hook.Subcommands = []*cli.Command{
+		ldcache.NewCommand(m.logger),
+		symlinks.NewCommand(m.logger),
+		chmod.NewCommand(m.logger),
+	}
+
+	return &hook
+}

cmd/nvidia-ctk/hook/update-ldcache/update-ldcache.go

@@ -0,0 +1,170 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package ldcache
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+	"syscall"
+
+	"github.com/urfave/cli/v2"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/config"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/oci"
+)
+
+type command struct {
+	logger logger.Interface
+}
+
+type options struct {
+	folders       cli.StringSlice
+	containerSpec string
+}
+
+// NewCommand constructs an update-ldcache command with the specified logger
+func NewCommand(logger logger.Interface) *cli.Command {
+	c := command{
+		logger: logger,
+	}
+	return c.build()
+}
+
+// build the update-ldcache command
+func (m command) build() *cli.Command {
+	cfg := options{}
+
+	// Create the 'update-ldcache' command
+	c := cli.Command{
+		Name:  "update-ldcache",
+		Usage: "Update ldcache in a container by running ldconfig",
+		Action: func(c *cli.Context) error {
+			return m.run(c, &cfg)
+		},
+	}
+
+	c.Flags = []cli.Flag{
+		&cli.StringSliceFlag{
+			Name:        "folder",
+			Usage:       "Specify a folder to add to /etc/ld.so.conf before updating the ld cache",
+			Destination: &cfg.folders,
+		},
+		&cli.StringFlag{
+			Name:        "container-spec",
+			Usage:       "Specify the path to the OCI container spec. If empty or '-' the spec will be read from STDIN",
+			Destination: &cfg.containerSpec,
+		},
+	}
+
+	return &c
+}
+
+func (m command) run(c *cli.Context, cfg *options) error {
+	s, err := oci.LoadContainerState(cfg.containerSpec)
+	if err != nil {
+		return fmt.Errorf("failed to load container state: %v", err)
+	}
+
+	containerRoot, err := s.GetContainerRoot()
+	if err != nil {
+		return fmt.Errorf("failed to determined container root: %v", err)
+	}
+
+	ldconfigPath := m.resolveLDConfigPath("/sbin/ldconfig")
+	args := []string{filepath.Base(ldconfigPath)}
+	if containerRoot != "" {
+		args = append(args, "-r", containerRoot)
+	}
+
+	if !root(containerRoot).hasPath("/etc/ld.so.cache") {
+		m.logger.Debugf("No ld.so.cache found, skipping update")
+		args = append(args, "-N")
+	}
+
+	folders := cfg.folders.Value()
+	if root(containerRoot).hasPath("/etc/ld.so.conf.d") {
+		err = m.createConfig(containerRoot, folders)
+		if err != nil {
+			return fmt.Errorf("failed to update ld.so.conf: %v", err)
+		}
+	} else {
+		args = append(args, folders...)
+	}
+
+	//nolint:gosec // TODO: Can we harden this so that there is less risk of command injection
+	return syscall.Exec(ldconfigPath, args, nil)
+}
+
+type root string
+
+func (r root) hasPath(path string) bool {
+	_, err := os.Stat(filepath.Join(string(r), path))
+	if err != nil && os.IsNotExist(err) {
+		return false
+	}
+	return true
+}
+
+// resolveLDConfigPath determines the LDConfig path to use for the system.
+// On systems such as Ubuntu where `/sbin/ldconfig` is a wrapper around
+// /sbin/ldconfig.real, the latter is returned.
+func (m command) resolveLDConfigPath(path string) string {
+	return strings.TrimPrefix(config.NormalizeLDConfigPath("@"+path), "@")
+}
+
+// createConfig creates (or updates) /etc/ld.so.conf.d/nvcr-<RANDOM_STRING>.conf in the container
+// to include the required paths.
+func (m command) createConfig(root string, folders []string) error {
+	if len(folders) == 0 {
+		m.logger.Debugf("No folders to add to /etc/ld.so.conf")
+		return nil
+	}
+
+	if err := os.MkdirAll(filepath.Join(root, "/etc/ld.so.conf.d"), 0755); err != nil {
+		return fmt.Errorf("failed to create ld.so.conf.d: %v", err)
+	}
+
+	configFile, err := os.CreateTemp(filepath.Join(root, "/etc/ld.so.conf.d"), "nvcr-*.conf")
+	if err != nil {
+		return fmt.Errorf("failed to create config file: %v", err)
+	}
+	defer configFile.Close()
+
+	m.logger.Debugf("Adding folders %v to %v", folders, configFile.Name())
+
+	configured := make(map[string]bool)
+	for _, folder := range folders {
+		if configured[folder] {
+			continue
+		}
+		_, err = configFile.WriteString(fmt.Sprintf("%s\n", folder))
+		if err != nil {
+			return fmt.Errorf("failed to update ld.so.conf.d: %v", err)
+		}
+		configured[folder] = true
+	}
+
+	// The created file needs to be world readable for the cases where the container is run as a non-root user.
+	if err := os.Chmod(configFile.Name(), 0644); err != nil {
+		return fmt.Errorf("failed to chmod config file: %v", err)
+	}
+
+	return nil
+}

cmd/nvidia-ctk/info/info.go

@@ -0,0 +1,48 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package info
+
+import (
+	"github.com/urfave/cli/v2"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+)
+
+type command struct {
+	logger logger.Interface
+}
+
+// NewCommand constructs an info command with the specified logger
+func NewCommand(logger logger.Interface) *cli.Command {
+	c := command{
+		logger: logger,
+	}
+	return c.build()
+}
+
+// build
+func (m command) build() *cli.Command {
+	// Create the 'info' command
+	info := cli.Command{
+		Name:  "info",
+		Usage: "Provide information about the system",
+	}
+
+	info.Subcommands = []*cli.Command{}
+
+	return &info
+}

cmd/nvidia-ctk/main.go

@@ -0,0 +1,104 @@
+/**
+# Copyright (c) 2021, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package main
+
+import (
+	"os"
+
+	"github.com/sirupsen/logrus"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-ctk/cdi"
+	"github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-ctk/config"
+	"github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-ctk/hook"
+	infoCLI "github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-ctk/info"
+	"github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-ctk/runtime"
+	"github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-ctk/system"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/info"
+
+	cli "github.com/urfave/cli/v2"
+)
+
+// options defines the options that can be set for the CLI through config files,
+// environment variables, or command line flags
+type options struct {
+	// Debug indicates whether the CLI is started in "debug" mode
+	Debug bool
+	// Quiet indicates whether the CLI is started in "quiet" mode
+	Quiet bool
+}
+
+func main() {
+	logger := logrus.New()
+
+	// Create a options struct to hold the parsed environment variables or command line flags
+	opts := options{}
+
+	// Create the top-level CLI
+	c := cli.NewApp()
+	c.Name = "NVIDIA Container Toolkit CLI"
+	c.UseShortOptionHandling = true
+	c.EnableBashCompletion = true
+	c.Usage = "Tools to configure the NVIDIA Container Toolkit"
+	c.Version = info.GetVersionString()
+
+	// Setup the flags for this command
+	c.Flags = []cli.Flag{
+		&cli.BoolFlag{
+			Name:        "debug",
+			Aliases:     []string{"d"},
+			Usage:       "Enable debug-level logging",
+			Destination: &opts.Debug,
+			EnvVars:     []string{"NVIDIA_CTK_DEBUG"},
+		},
+		&cli.BoolFlag{
+			Name:        "quiet",
+			Usage:       "Suppress all output except for errors; overrides --debug",
+			Destination: &opts.Quiet,
+			EnvVars:     []string{"NVIDIA_CTK_QUIET"},
+		},
+	}
+
+	// Set log-level for all subcommands
+	c.Before = func(c *cli.Context) error {
+		logLevel := logrus.InfoLevel
+		if opts.Debug {
+			logLevel = logrus.DebugLevel
+		}
+		if opts.Quiet {
+			logLevel = logrus.ErrorLevel
+		}
+		logger.SetLevel(logLevel)
+		return nil
+	}
+
+	// Define the subcommands
+	c.Commands = []*cli.Command{
+		hook.NewCommand(logger),
+		runtime.NewCommand(logger),
+		infoCLI.NewCommand(logger),
+		cdi.NewCommand(logger),
+		system.NewCommand(logger),
+		config.NewCommand(logger),
+	}
+
+	// Run the CLI
+	err := c.Run(os.Args)
+	if err != nil {
+		logger.Errorf("%v", err)
+		os.Exit(1)
+	}
+}

cmd/nvidia-ctk/runtime/configure/configure.go

@@ -0,0 +1,316 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package configure
+
+import (
+	"fmt"
+	"path/filepath"
+
+	"github.com/urfave/cli/v2"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+	"github.com/NVIDIA/nvidia-container-toolkit/pkg/config/engine"
+	"github.com/NVIDIA/nvidia-container-toolkit/pkg/config/engine/containerd"
+	"github.com/NVIDIA/nvidia-container-toolkit/pkg/config/engine/crio"
+	"github.com/NVIDIA/nvidia-container-toolkit/pkg/config/engine/docker"
+	"github.com/NVIDIA/nvidia-container-toolkit/pkg/config/ocihook"
+)
+
+const (
+	defaultRuntime = "docker"
+
+	// defaultNVIDIARuntimeName is the default name to use in configs for the NVIDIA Container Runtime
+	defaultNVIDIARuntimeName = "nvidia"
+	// defaultNVIDIARuntimeExecutable is the default NVIDIA Container Runtime executable file name
+	defaultNVIDIARuntimeExecutable          = "nvidia-container-runtime"
+	defaultNVIDIARuntimeExpecutablePath     = "/usr/bin/nvidia-container-runtime"
+	defaultNVIDIARuntimeHookExpecutablePath = "/usr/bin/nvidia-container-runtime-hook"
+
+	defaultContainerdConfigFilePath = "/etc/containerd/config.toml"
+	defaultCrioConfigFilePath       = "/etc/crio/crio.conf"
+	defaultDockerConfigFilePath     = "/etc/docker/daemon.json"
+)
+
+type command struct {
+	logger logger.Interface
+}
+
+// NewCommand constructs an configure command with the specified logger
+func NewCommand(logger logger.Interface) *cli.Command {
+	c := command{
+		logger: logger,
+	}
+	return c.build()
+}
+
+// config defines the options that can be set for the CLI through config files,
+// environment variables, or command line config
+type config struct {
+	dryRun         bool
+	runtime        string
+	configFilePath string
+	mode           string
+	hookFilePath   string
+
+	nvidiaRuntime struct {
+		name         string
+		path         string
+		hookPath     string
+		setAsDefault bool
+	}
+
+	// cdi-specific options
+	cdi struct {
+		enabled bool
+	}
+}
+
+func (m command) build() *cli.Command {
+	// Create a config struct to hold the parsed environment variables or command line flags
+	config := config{}
+
+	// Create the 'configure' command
+	configure := cli.Command{
+		Name:  "configure",
+		Usage: "Add a runtime to the specified container engine",
+		Before: func(c *cli.Context) error {
+			return m.validateFlags(c, &config)
+		},
+		Action: func(c *cli.Context) error {
+			return m.configureWrapper(c, &config)
+		},
+	}
+
+	configure.Flags = []cli.Flag{
+		&cli.BoolFlag{
+			Name:        "dry-run",
+			Usage:       "update the runtime configuration as required but don't write changes to disk",
+			Destination: &config.dryRun,
+		},
+		&cli.StringFlag{
+			Name:        "runtime",
+			Usage:       "the target runtime engine; one of [containerd, crio, docker]",
+			Value:       defaultRuntime,
+			Destination: &config.runtime,
+		},
+		&cli.StringFlag{
+			Name:        "config",
+			Usage:       "path to the config file for the target runtime",
+			Destination: &config.configFilePath,
+		},
+		&cli.StringFlag{
+			Name:        "config-mode",
+			Usage:       "the config mode for runtimes that support multiple configuration mechanisms",
+			Destination: &config.mode,
+		},
+		&cli.StringFlag{
+			Name:        "oci-hook-path",
+			Usage:       "the path to the OCI runtime hook to create if --config-mode=oci-hook is specified. If no path is specified, the generated hook is output to STDOUT.\n\tNote: The use of OCI hooks is deprecated.",
+			Destination: &config.hookFilePath,
+		},
+		&cli.StringFlag{
+			Name:        "nvidia-runtime-name",
+			Usage:       "specify the name of the NVIDIA runtime that will be added",
+			Value:       defaultNVIDIARuntimeName,
+			Destination: &config.nvidiaRuntime.name,
+		},
+		&cli.StringFlag{
+			Name:        "nvidia-runtime-path",
+			Aliases:     []string{"runtime-path"},
+			Usage:       "specify the path to the NVIDIA runtime executable",
+			Value:       defaultNVIDIARuntimeExecutable,
+			Destination: &config.nvidiaRuntime.path,
+		},
+		&cli.StringFlag{
+			Name:        "nvidia-runtime-hook-path",
+			Usage:       "specify the path to the NVIDIA Container Runtime hook executable",
+			Value:       defaultNVIDIARuntimeHookExpecutablePath,
+			Destination: &config.nvidiaRuntime.hookPath,
+		},
+		&cli.BoolFlag{
+			Name:        "nvidia-set-as-default",
+			Aliases:     []string{"set-as-default"},
+			Usage:       "set the NVIDIA runtime as the default runtime",
+			Destination: &config.nvidiaRuntime.setAsDefault,
+		},
+		&cli.BoolFlag{
+			Name:        "cdi.enabled",
+			Usage:       "Enable CDI in the configured runtime",
+			Destination: &config.cdi.enabled,
+		},
+	}
+
+	return &configure
+}
+
+func (m command) validateFlags(c *cli.Context, config *config) error {
+	if config.mode == "oci-hook" {
+		if !filepath.IsAbs(config.nvidiaRuntime.hookPath) {
+			return fmt.Errorf("the NVIDIA runtime hook path %q is not an absolute path", config.nvidiaRuntime.hookPath)
+		}
+		return nil
+	}
+	if config.mode != "" && config.mode != "config-file" {
+		m.logger.Warningf("Ignoring unsupported config mode for %v: %q", config.runtime, config.mode)
+	}
+	config.mode = "config-file"
+
+	switch config.runtime {
+	case "containerd", "crio", "docker":
+		break
+	default:
+		return fmt.Errorf("unrecognized runtime '%v'", config.runtime)
+	}
+
+	switch config.runtime {
+	case "containerd", "crio":
+		if config.nvidiaRuntime.path == defaultNVIDIARuntimeExecutable {
+			config.nvidiaRuntime.path = defaultNVIDIARuntimeExpecutablePath
+		}
+		if !filepath.IsAbs(config.nvidiaRuntime.path) {
+			return fmt.Errorf("the NVIDIA runtime path %q is not an absolute path", config.nvidiaRuntime.path)
+		}
+	}
+
+	if config.runtime != "containerd" && config.runtime != "docker" {
+		if config.cdi.enabled {
+			m.logger.Warningf("Ignoring cdi.enabled flag for %v", config.runtime)
+		}
+		config.cdi.enabled = false
+	}
+
+	return nil
+}
+
+// configureWrapper updates the specified container engine config to enable the NVIDIA runtime
+func (m command) configureWrapper(c *cli.Context, config *config) error {
+	switch config.mode {
+	case "oci-hook":
+		return m.configureOCIHook(c, config)
+	case "config-file":
+		return m.configureConfigFile(c, config)
+	}
+	return fmt.Errorf("unsupported config-mode: %v", config.mode)
+}
+
+// configureConfigFile updates the specified container engine config file to enable the NVIDIA runtime.
+func (m command) configureConfigFile(c *cli.Context, config *config) error {
+	configFilePath := config.resolveConfigFilePath()
+
+	var cfg engine.Interface
+	var err error
+	switch config.runtime {
+	case "containerd":
+		cfg, err = containerd.New(
+			containerd.WithLogger(m.logger),
+			containerd.WithPath(configFilePath),
+		)
+	case "crio":
+		cfg, err = crio.New(
+			crio.WithLogger(m.logger),
+			crio.WithPath(configFilePath),
+		)
+	case "docker":
+		cfg, err = docker.New(
+			docker.WithLogger(m.logger),
+			docker.WithPath(configFilePath),
+		)
+	default:
+		err = fmt.Errorf("unrecognized runtime '%v'", config.runtime)
+	}
+	if err != nil || cfg == nil {
+		return fmt.Errorf("unable to load config for runtime %v: %v", config.runtime, err)
+	}
+
+	err = cfg.AddRuntime(
+		config.nvidiaRuntime.name,
+		config.nvidiaRuntime.path,
+		config.nvidiaRuntime.setAsDefault,
+	)
+	if err != nil {
+		return fmt.Errorf("unable to update config: %v", err)
+	}
+
+	err = enableCDI(config, cfg)
+	if err != nil {
+		return fmt.Errorf("failed to enable CDI in %s: %w", config.runtime, err)
+	}
+
+	outputPath := config.getOuputConfigPath()
+	n, err := cfg.Save(outputPath)
+	if err != nil {
+		return fmt.Errorf("unable to flush config: %v", err)
+	}
+
+	if outputPath != "" {
+		if n == 0 {
+			m.logger.Infof("Removed empty config from %v", outputPath)
+		} else {
+			m.logger.Infof("Wrote updated config to %v", outputPath)
+		}
+		m.logger.Infof("It is recommended that %v daemon be restarted.", config.runtime)
+	}
+
+	return nil
+}
+
+// resolveConfigFilePath returns the default config file path for the configured container engine
+func (c *config) resolveConfigFilePath() string {
+	if c.configFilePath != "" {
+		return c.configFilePath
+	}
+	switch c.runtime {
+	case "containerd":
+		return defaultContainerdConfigFilePath
+	case "crio":
+		return defaultCrioConfigFilePath
+	case "docker":
+		return defaultDockerConfigFilePath
+	}
+	return ""
+}
+
+// getOuputConfigPath returns the configured config path or "" if dry-run is enabled
+func (c *config) getOuputConfigPath() string {
+	if c.dryRun {
+		return ""
+	}
+	return c.resolveConfigFilePath()
+}
+
+// configureOCIHook creates and configures the OCI hook for the NVIDIA runtime
+func (m *command) configureOCIHook(c *cli.Context, config *config) error {
+	err := ocihook.CreateHook(config.hookFilePath, config.nvidiaRuntime.hookPath)
+	if err != nil {
+		return fmt.Errorf("error creating OCI hook: %v", err)
+	}
+	return nil
+}
+
+// enableCDI enables the use of CDI in the corresponding container engine
+func enableCDI(config *config, cfg engine.Interface) error {
+	if !config.cdi.enabled {
+		return nil
+	}
+	switch config.runtime {
+	case "containerd":
+		return cfg.Set("enable_cdi", true)
+	case "docker":
+		return cfg.Set("experimental", true)
+	}
+	return fmt.Errorf("enabling CDI in %s is not supported", config.runtime)
+}

cmd/nvidia-ctk/runtime/runtime.go

@@ -0,0 +1,50 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package runtime
+
+import (
+	"github.com/urfave/cli/v2"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-ctk/runtime/configure"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+)
+
+type runtimeCommand struct {
+	logger logger.Interface
+}
+
+// NewCommand constructs a runtime command with the specified logger
+func NewCommand(logger logger.Interface) *cli.Command {
+	c := runtimeCommand{
+		logger: logger,
+	}
+	return c.build()
+}
+
+func (m runtimeCommand) build() *cli.Command {
+	// Create the 'runtime' command
+	runtime := cli.Command{
+		Name:  "runtime",
+		Usage: "A collection of runtime-related utilities for the NVIDIA Container Toolkit",
+	}
+
+	runtime.Subcommands = []*cli.Command{
+		configure.NewCommand(m.logger),
+	}
+
+	return &runtime
+}

cmd/nvidia-ctk/system/create-dev-char-symlinks/all.go

@@ -0,0 +1,188 @@
+/**
+# Copyright (c) NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package devchar
+
+import (
+	"fmt"
+	"path/filepath"
+
+	"github.com/NVIDIA/go-nvlib/pkg/nvpci"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/info/proc/devices"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/nvcaps"
+)
+
+type allPossible struct {
+	logger       logger.Interface
+	devRoot      string
+	deviceMajors devices.Devices
+	migCaps      nvcaps.MigCaps
+}
+
+// newAllPossible returns a new allPossible device node lister.
+// This lister lists all possible device nodes for NVIDIA GPUs, control devices, and capability devices.
+func newAllPossible(logger logger.Interface, devRoot string) (nodeLister, error) {
+	deviceMajors, err := devices.GetNVIDIADevices()
+	if err != nil {
+		return nil, fmt.Errorf("failed reading device majors: %v", err)
+	}
+
+	var requiredMajors []devices.Name
+	migCaps, err := nvcaps.NewMigCaps()
+	if err != nil {
+		return nil, fmt.Errorf("failed to read MIG caps: %v", err)
+	}
+	if migCaps == nil {
+		migCaps = make(nvcaps.MigCaps)
+	} else {
+		requiredMajors = append(requiredMajors, devices.NVIDIACaps)
+	}
+
+	requiredMajors = append(requiredMajors, devices.NVIDIAGPU, devices.NVIDIAUVM)
+	for _, name := range requiredMajors {
+		if !deviceMajors.Exists(name) {
+			return nil, fmt.Errorf("missing required device major %s", name)
+		}
+	}
+
+	l := allPossible{
+		logger:       logger,
+		devRoot:      devRoot,
+		deviceMajors: deviceMajors,
+		migCaps:      migCaps,
+	}
+
+	return l, nil
+}
+
+// DeviceNodes returns a list of all possible device nodes for NVIDIA GPUs, control devices, and capability devices.
+func (m allPossible) DeviceNodes() ([]deviceNode, error) {
+	gpus, err := nvpci.New(
+		nvpci.WithPCIDevicesRoot(filepath.Join(m.devRoot, nvpci.PCIDevicesRoot)),
+		nvpci.WithLogger(m.logger),
+	).GetGPUs()
+	if err != nil {
+		return nil, fmt.Errorf("failed to get GPU information: %v", err)
+	}
+
+	count := len(gpus)
+	if count == 0 {
+		m.logger.Infof("No NVIDIA devices found in %s", m.devRoot)
+		return nil, nil
+	}
+
+	deviceNodes, err := m.getControlDeviceNodes()
+	if err != nil {
+		return nil, fmt.Errorf("failed to get control device nodes: %v", err)
+	}
+
+	for gpu := 0; gpu < count; gpu++ {
+		deviceNodes = append(deviceNodes, m.getGPUDeviceNodes(gpu)...)
+		deviceNodes = append(deviceNodes, m.getNVCapDeviceNodes(gpu)...)
+	}
+
+	return deviceNodes, nil
+}
+
+// getControlDeviceNodes generates a list of control devices
+func (m allPossible) getControlDeviceNodes() ([]deviceNode, error) {
+	var deviceNodes []deviceNode
+
+	// Define the control devices for standard GPUs.
+	controlDevices := []deviceNode{
+		m.newDeviceNode(devices.NVIDIAGPU, "/dev/nvidia-modeset", devices.NVIDIAModesetMinor),
+		m.newDeviceNode(devices.NVIDIAGPU, "/dev/nvidiactl", devices.NVIDIACTLMinor),
+		m.newDeviceNode(devices.NVIDIAUVM, "/dev/nvidia-uvm", devices.NVIDIAUVMMinor),
+		m.newDeviceNode(devices.NVIDIAUVM, "/dev/nvidia-uvm-tools", devices.NVIDIAUVMToolsMinor),
+	}
+
+	deviceNodes = append(deviceNodes, controlDevices...)
+
+	for _, migControlDevice := range []nvcaps.MigCap{"config", "monitor"} {
+		migControlMinor, exist := m.migCaps[migControlDevice]
+		if !exist {
+			continue
+		}
+
+		d := m.newDeviceNode(
+			devices.NVIDIACaps,
+			migControlMinor.DevicePath(),
+			int(migControlMinor),
+		)
+
+		deviceNodes = append(deviceNodes, d)
+	}
+
+	return deviceNodes, nil
+}
+
+// getGPUDeviceNodes generates a list of device nodes for a given GPU.
+func (m allPossible) getGPUDeviceNodes(gpu int) []deviceNode {
+	d := m.newDeviceNode(
+		devices.NVIDIAGPU,
+		fmt.Sprintf("/dev/nvidia%d", gpu),
+		gpu,
+	)
+
+	return []deviceNode{d}
+}
+
+// getNVCapDeviceNodes generates a list of cap device nodes for a given GPU.
+func (m allPossible) getNVCapDeviceNodes(gpu int) []deviceNode {
+	var selectedCapMinors []nvcaps.MigMinor
+	for gi := 0; ; gi++ {
+		giCap := nvcaps.NewGPUInstanceCap(gpu, gi)
+		giMinor, exist := m.migCaps[giCap]
+		if !exist {
+			break
+		}
+		selectedCapMinors = append(selectedCapMinors, giMinor)
+		for ci := 0; ; ci++ {
+			ciCap := nvcaps.NewComputeInstanceCap(gpu, gi, ci)
+			ciMinor, exist := m.migCaps[ciCap]
+			if !exist {
+				break
+			}
+			selectedCapMinors = append(selectedCapMinors, ciMinor)
+		}
+	}
+
+	var deviceNodes []deviceNode
+	for _, capMinor := range selectedCapMinors {
+		d := m.newDeviceNode(
+			devices.NVIDIACaps,
+			capMinor.DevicePath(),
+			int(capMinor),
+		)
+		deviceNodes = append(deviceNodes, d)
+	}
+
+	return deviceNodes
+}
+
+// newDeviceNode creates a new device node with the specified path and major/minor numbers.
+// The path is adjusted for the specified driver root.
+func (m allPossible) newDeviceNode(deviceName devices.Name, path string, minor int) deviceNode {
+	major, _ := m.deviceMajors.Get(deviceName)
+
+	return deviceNode{
+		path:  filepath.Join(m.devRoot, path),
+		major: uint32(major),
+		minor: uint32(minor),
+	}
+}

cmd/nvidia-ctk/system/create-dev-char-symlinks/create-dev-char-symlinks.go

@@ -0,0 +1,425 @@
+/**
+# Copyright (c) NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package devchar
+
+import (
+	"fmt"
+	"os"
+	"os/signal"
+	"path/filepath"
+	"strings"
+	"syscall"
+
+	"github.com/fsnotify/fsnotify"
+	"github.com/urfave/cli/v2"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/system/nvdevices"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/system/nvmodules"
+)
+
+const (
+	defaultDevCharPath = "/dev/char"
+)
+
+type command struct {
+	logger logger.Interface
+}
+
+type config struct {
+	devCharPath       string
+	driverRoot        string
+	dryRun            bool
+	watch             bool
+	createAll         bool
+	createDeviceNodes bool
+	loadKernelModules bool
+}
+
+// NewCommand constructs a command sub-command with the specified logger
+func NewCommand(logger logger.Interface) *cli.Command {
+	c := command{
+		logger: logger,
+	}
+	return c.build()
+}
+
+// build
+func (m command) build() *cli.Command {
+	cfg := config{}
+
+	// Create the 'create-dev-char-symlinks' command
+	c := cli.Command{
+		Name:  "create-dev-char-symlinks",
+		Usage: "A utility to create symlinks to possible /dev/nv* devices in /dev/char",
+		Before: func(c *cli.Context) error {
+			return m.validateFlags(c, &cfg)
+		},
+		Action: func(c *cli.Context) error {
+			return m.run(c, &cfg)
+		},
+	}
+
+	c.Flags = []cli.Flag{
+		&cli.StringFlag{
+			Name:        "dev-char-path",
+			Usage:       "The path at which the symlinks will be created. Symlinks will be created as `DEV_CHAR`/MAJOR:MINOR where MAJOR and MINOR are the major and minor numbers of a corresponding device node.",
+			Value:       defaultDevCharPath,
+			Destination: &cfg.devCharPath,
+			EnvVars:     []string{"DEV_CHAR_PATH"},
+		},
+		&cli.StringFlag{
+			Name:        "driver-root",
+			Usage:       "The path to the driver root. `DRIVER_ROOT`/dev is searched for NVIDIA device nodes.",
+			Value:       "/",
+			Destination: &cfg.driverRoot,
+			EnvVars:     []string{"DRIVER_ROOT"},
+		},
+		&cli.BoolFlag{
+			Name:        "watch",
+			Usage:       "If set, the command will watch for changes to the driver root and recreate the symlinks when changes are detected.",
+			Value:       false,
+			Destination: &cfg.watch,
+			EnvVars:     []string{"WATCH"},
+		},
+		&cli.BoolFlag{
+			Name:        "create-all",
+			Usage:       "Create all possible /dev/char symlinks instead of limiting these to existing device nodes.",
+			Destination: &cfg.createAll,
+			EnvVars:     []string{"CREATE_ALL"},
+		},
+		&cli.BoolFlag{
+			Name:        "load-kernel-modules",
+			Usage:       "Load the NVIDIA kernel modules before creating symlinks. This is only applicable when --create-all is set.",
+			Destination: &cfg.loadKernelModules,
+			EnvVars:     []string{"LOAD_KERNEL_MODULES"},
+		},
+		&cli.BoolFlag{
+			Name:        "create-device-nodes",
+			Usage:       "Create the NVIDIA control device nodes in the driver root if they do not exist. This is only applicable when --create-all is set",
+			Destination: &cfg.createDeviceNodes,
+			EnvVars:     []string{"CREATE_DEVICE_NODES"},
+		},
+		&cli.BoolFlag{
+			Name:        "dry-run",
+			Usage:       "If set, the command will not create any symlinks.",
+			Value:       false,
+			Destination: &cfg.dryRun,
+			EnvVars:     []string{"DRY_RUN"},
+		},
+	}
+
+	return &c
+}
+
+func (m command) validateFlags(r *cli.Context, cfg *config) error {
+	if cfg.createAll && cfg.watch {
+		return fmt.Errorf("create-all and watch are mutually exclusive")
+	}
+
+	if cfg.loadKernelModules && !cfg.createAll {
+		m.logger.Warning("load-kernel-modules is only applicable when create-all is set; ignoring")
+		cfg.loadKernelModules = false
+	}
+
+	if cfg.createDeviceNodes && !cfg.createAll {
+		m.logger.Warning("create-device-nodes is only applicable when create-all is set; ignoring")
+		cfg.createDeviceNodes = false
+	}
+
+	return nil
+}
+
+func (m command) run(c *cli.Context, cfg *config) error {
+	var watcher *fsnotify.Watcher
+	var sigs chan os.Signal
+
+	if cfg.watch {
+		watcher, err := newFSWatcher(filepath.Join(cfg.driverRoot, "dev"))
+		if err != nil {
+			return fmt.Errorf("failed to create FS watcher: %v", err)
+		}
+		defer watcher.Close()
+
+		sigs = newOSWatcher(syscall.SIGHUP, syscall.SIGINT, syscall.SIGTERM, syscall.SIGQUIT)
+	}
+
+	l, err := NewSymlinkCreator(
+		WithLogger(m.logger),
+		WithDevCharPath(cfg.devCharPath),
+		WithDriverRoot(cfg.driverRoot),
+		WithDryRun(cfg.dryRun),
+		WithCreateAll(cfg.createAll),
+		WithLoadKernelModules(cfg.loadKernelModules),
+		WithCreateDeviceNodes(cfg.createDeviceNodes),
+	)
+	if err != nil {
+		return fmt.Errorf("failed to create symlink creator: %v", err)
+	}
+
+create:
+	err = l.CreateLinks()
+	if err != nil {
+		return fmt.Errorf("failed to create links: %v", err)
+	}
+	if !cfg.watch {
+		return nil
+	}
+	for {
+		select {
+
+		case event := <-watcher.Events:
+			deviceNode := filepath.Base(event.Name)
+			if !strings.HasPrefix(deviceNode, "nvidia") {
+				continue
+			}
+			if event.Op&fsnotify.Create == fsnotify.Create {
+				m.logger.Infof("%s created, restarting.", event.Name)
+				goto create
+			}
+			if event.Op&fsnotify.Create == fsnotify.Remove {
+				m.logger.Infof("%s removed. Ignoring", event.Name)
+
+			}
+
+		// Watch for any other fs errors and log them.
+		case err := <-watcher.Errors:
+			m.logger.Errorf("inotify: %s", err)
+
+		// React to signals
+		case s := <-sigs:
+			switch s {
+			case syscall.SIGHUP:
+				m.logger.Infof("Received SIGHUP, recreating symlinks.")
+				goto create
+			default:
+				m.logger.Infof("Received signal %q, shutting down.", s)
+				return nil
+			}
+		}
+	}
+}
+
+type linkCreator struct {
+	logger            logger.Interface
+	lister            nodeLister
+	driverRoot        string
+	devRoot           string
+	devCharPath       string
+	dryRun            bool
+	createAll         bool
+	createDeviceNodes bool
+	loadKernelModules bool
+}
+
+// Creator is an interface for creating symlinks to /dev/nv* devices in /dev/char.
+type Creator interface {
+	CreateLinks() error
+}
+
+// Option is a functional option for configuring the linkCreator.
+type Option func(*linkCreator)
+
+// NewSymlinkCreator creates a new linkCreator.
+func NewSymlinkCreator(opts ...Option) (Creator, error) {
+	c := linkCreator{}
+	for _, opt := range opts {
+		opt(&c)
+	}
+	if c.logger == nil {
+		c.logger = logger.New()
+	}
+	if c.driverRoot == "" {
+		c.driverRoot = "/"
+	}
+	if c.devRoot == "" {
+		c.devRoot = "/"
+	}
+	if c.devCharPath == "" {
+		c.devCharPath = defaultDevCharPath
+	}
+
+	if err := c.setup(); err != nil {
+		return nil, err
+	}
+
+	if c.createAll {
+		lister, err := newAllPossible(c.logger, c.devRoot)
+		if err != nil {
+			return nil, fmt.Errorf("failed to create all possible device lister: %v", err)
+		}
+		c.lister = lister
+	} else {
+		c.lister = existing{c.logger, c.devRoot}
+	}
+	return c, nil
+}
+
+func (m linkCreator) setup() error {
+	if !m.loadKernelModules && !m.createDeviceNodes {
+		return nil
+	}
+
+	if m.loadKernelModules {
+		modules := nvmodules.New(
+			nvmodules.WithLogger(m.logger),
+			nvmodules.WithDryRun(m.dryRun),
+			nvmodules.WithRoot(m.driverRoot),
+		)
+		if err := modules.LoadAll(); err != nil {
+			return fmt.Errorf("failed to load NVIDIA kernel modules: %v", err)
+		}
+	}
+
+	if m.createDeviceNodes {
+		devices, err := nvdevices.New(
+			nvdevices.WithLogger(m.logger),
+			nvdevices.WithDryRun(m.dryRun),
+			nvdevices.WithDevRoot(m.devRoot),
+		)
+		if err != nil {
+			return err
+		}
+		if err := devices.CreateNVIDIAControlDevices(); err != nil {
+			return fmt.Errorf("failed to create NVIDIA device nodes: %v", err)
+		}
+	}
+	return nil
+}
+
+// WithDriverRoot sets the driver root path.
+// This is the path in which kernel modules must be loaded.
+func WithDriverRoot(root string) Option {
+	return func(c *linkCreator) {
+		c.driverRoot = root
+	}
+}
+
+// WithDevRoot sets the root path for the /dev directory.
+func WithDevRoot(root string) Option {
+	return func(c *linkCreator) {
+		c.devRoot = root
+	}
+}
+
+// WithDevCharPath sets the path at which the symlinks will be created.
+func WithDevCharPath(path string) Option {
+	return func(c *linkCreator) {
+		c.devCharPath = path
+	}
+}
+
+// WithDryRun sets the dry run flag.
+func WithDryRun(dryRun bool) Option {
+	return func(c *linkCreator) {
+		c.dryRun = dryRun
+	}
+}
+
+// WithLogger sets the logger.
+func WithLogger(logger logger.Interface) Option {
+	return func(c *linkCreator) {
+		c.logger = logger
+	}
+}
+
+// WithCreateAll sets the createAll flag for the linkCreator.
+func WithCreateAll(createAll bool) Option {
+	return func(lc *linkCreator) {
+		lc.createAll = createAll
+	}
+}
+
+// WithLoadKernelModules sets the loadKernelModules flag for the linkCreator.
+func WithLoadKernelModules(loadKernelModules bool) Option {
+	return func(lc *linkCreator) {
+		lc.loadKernelModules = loadKernelModules
+	}
+}
+
+// WithCreateDeviceNodes sets the createDeviceNodes flag for the linkCreator.
+func WithCreateDeviceNodes(createDeviceNodes bool) Option {
+	return func(lc *linkCreator) {
+		lc.createDeviceNodes = createDeviceNodes
+	}
+}
+
+// CreateLinks creates symlinks for all NVIDIA device nodes found in the driver root.
+func (m linkCreator) CreateLinks() error {
+	deviceNodes, err := m.lister.DeviceNodes()
+	if err != nil {
+		return fmt.Errorf("failed to get device nodes: %v", err)
+	}
+
+	if len(deviceNodes) != 0 && !m.dryRun {
+		err := os.MkdirAll(m.devCharPath, 0755)
+		if err != nil {
+			return fmt.Errorf("failed to create directory %s: %v", m.devCharPath, err)
+		}
+	}
+
+	for _, deviceNode := range deviceNodes {
+		target := deviceNode.path
+		linkPath := filepath.Join(m.devCharPath, deviceNode.devCharName())
+
+		m.logger.Infof("Creating link %s => %s", linkPath, target)
+		if m.dryRun {
+			continue
+		}
+
+		err = os.Symlink(target, linkPath)
+		if err != nil {
+			m.logger.Warningf("Could not create symlink: %v", err)
+		}
+	}
+
+	return nil
+}
+
+type deviceNode struct {
+	path  string
+	major uint32
+	minor uint32
+}
+
+func (d deviceNode) devCharName() string {
+	return fmt.Sprintf("%d:%d", d.major, d.minor)
+}
+
+func newFSWatcher(files ...string) (*fsnotify.Watcher, error) {
+	watcher, err := fsnotify.NewWatcher()
+	if err != nil {
+		return nil, err
+	}
+
+	for _, f := range files {
+		err = watcher.Add(f)
+		if err != nil {
+			watcher.Close()
+			return nil, err
+		}
+	}
+
+	return watcher, nil
+}
+
+func newOSWatcher(sigs ...os.Signal) chan os.Signal {
+	sigChan := make(chan os.Signal, 1)
+	signal.Notify(sigChan, sigs...)
+
+	return sigChan
+}

cmd/nvidia-ctk/system/create-dev-char-symlinks/existing.go

@@ -0,0 +1,89 @@
+/**
+# Copyright (c) NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package devchar
+
+import (
+	"path/filepath"
+	"strings"
+
+	"golang.org/x/sys/unix"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/lookup"
+)
+
+type nodeLister interface {
+	DeviceNodes() ([]deviceNode, error)
+}
+
+type existing struct {
+	logger  logger.Interface
+	devRoot string
+}
+
+// DeviceNodes returns a list of NVIDIA device nodes in the specified root.
+// The nvidia-nvswitch* and nvidia-nvlink devices are excluded.
+func (m existing) DeviceNodes() ([]deviceNode, error) {
+	locator := lookup.NewCharDeviceLocator(
+		lookup.WithLogger(m.logger),
+		lookup.WithRoot(m.devRoot),
+		lookup.WithOptional(true),
+	)
+
+	devices, err := locator.Locate("/dev/nvidia*")
+	if err != nil {
+		m.logger.Warningf("Error while locating device: %v", err)
+	}
+
+	capDevices, err := locator.Locate("/dev/nvidia-caps/nvidia-*")
+	if err != nil {
+		m.logger.Warningf("Error while locating caps device: %v", err)
+	}
+
+	if len(devices) == 0 && len(capDevices) == 0 {
+		m.logger.Infof("No NVIDIA devices found in %s", m.devRoot)
+		return nil, nil
+	}
+
+	var deviceNodes []deviceNode
+	for _, d := range append(devices, capDevices...) {
+		if m.nodeIsBlocked(d) {
+			continue
+		}
+		var stat unix.Stat_t
+		err := unix.Stat(d, &stat)
+		if err != nil {
+			m.logger.Warningf("Could not stat device: %v", err)
+			continue
+		}
+		deviceNodes = append(deviceNodes, newDeviceNode(d, stat))
+	}
+
+	return deviceNodes, nil
+}
+
+// nodeIsBlocked returns true if the specified device node should be ignored.
+func (m existing) nodeIsBlocked(path string) bool {
+	blockedPrefixes := []string{"nvidia-fs", "nvidia-nvswitch", "nvidia-nvlink"}
+	nodeName := filepath.Base(path)
+	for _, prefix := range blockedPrefixes {
+		if strings.HasPrefix(nodeName, prefix) {
+			return true
+		}
+	}
+	return false
+}

cmd/nvidia-ctk/system/create-dev-char-symlinks/existing_linux.go

@@ -0,0 +1,28 @@
+/**
+# Copyright (c) NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package devchar
+
+import "golang.org/x/sys/unix"
+
+func newDeviceNode(d string, stat unix.Stat_t) deviceNode {
+	deviceNode := deviceNode{
+		path:  d,
+		major: unix.Major(stat.Rdev),
+		minor: unix.Minor(stat.Rdev),
+	}
+	return deviceNode
+}

cmd/nvidia-ctk/system/create-dev-char-symlinks/existing_other.go

@@ -0,0 +1,30 @@
+//go:build !linux
+
+/**
+# Copyright (c) NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package devchar
+
+import "golang.org/x/sys/unix"
+
+func newDeviceNode(d string, stat unix.Stat_t) deviceNode {
+	deviceNode := deviceNode{
+		path:  d,
+		major: unix.Major(uint64(stat.Rdev)),
+		minor: unix.Minor(uint64(stat.Rdev)),
+	}
+	return deviceNode
+}

cmd/nvidia-ctk/system/create-device-nodes/create-device-nodes.go

@@ -0,0 +1,127 @@
+/**
+# Copyright (c) NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package createdevicenodes
+
+import (
+	"fmt"
+
+	"github.com/urfave/cli/v2"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/system/nvdevices"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/system/nvmodules"
+)
+
+type command struct {
+	logger logger.Interface
+}
+
+type options struct {
+	driverRoot string
+
+	dryRun bool
+
+	control bool
+
+	loadKernelModules bool
+}
+
+// NewCommand constructs a command sub-command with the specified logger
+func NewCommand(logger logger.Interface) *cli.Command {
+	c := command{
+		logger: logger,
+	}
+	return c.build()
+}
+
+// build
+func (m command) build() *cli.Command {
+	opts := options{}
+
+	c := cli.Command{
+		Name:  "create-device-nodes",
+		Usage: "A utility to create NVIDIA device nodes",
+		Before: func(c *cli.Context) error {
+			return m.validateFlags(c, &opts)
+		},
+		Action: func(c *cli.Context) error {
+			return m.run(c, &opts)
+		},
+	}
+
+	c.Flags = []cli.Flag{
+		&cli.StringFlag{
+			Name:        "driver-root",
+			Usage:       "the path to the driver root. Device nodes will be created at `DRIVER_ROOT`/dev",
+			Value:       "/",
+			Destination: &opts.driverRoot,
+			EnvVars:     []string{"DRIVER_ROOT"},
+		},
+		&cli.BoolFlag{
+			Name:        "control-devices",
+			Usage:       "create all control device nodes: nvidiactl, nvidia-modeset, nvidia-uvm, nvidia-uvm-tools",
+			Destination: &opts.control,
+		},
+		&cli.BoolFlag{
+			Name:        "load-kernel-modules",
+			Usage:       "load the NVIDIA Kernel Modules before creating devices nodes",
+			Destination: &opts.loadKernelModules,
+		},
+		&cli.BoolFlag{
+			Name:        "dry-run",
+			Usage:       "if set, the command will not create any symlinks.",
+			Value:       false,
+			Destination: &opts.dryRun,
+			EnvVars:     []string{"DRY_RUN"},
+		},
+	}
+
+	return &c
+}
+
+func (m command) validateFlags(r *cli.Context, opts *options) error {
+	return nil
+}
+
+func (m command) run(c *cli.Context, opts *options) error {
+	if opts.loadKernelModules {
+		modules := nvmodules.New(
+			nvmodules.WithLogger(m.logger),
+			nvmodules.WithDryRun(opts.dryRun),
+			nvmodules.WithRoot(opts.driverRoot),
+		)
+		if err := modules.LoadAll(); err != nil {
+			return fmt.Errorf("failed to load NVIDIA kernel modules: %v", err)
+		}
+	}
+
+	if opts.control {
+		devices, err := nvdevices.New(
+			nvdevices.WithLogger(m.logger),
+			nvdevices.WithDryRun(opts.dryRun),
+			nvdevices.WithDevRoot(opts.driverRoot),
+		)
+		if err != nil {
+			return err
+		}
+		m.logger.Infof("Creating control device nodes at %s", opts.driverRoot)
+		if err := devices.CreateNVIDIAControlDevices(); err != nil {
+			return fmt.Errorf("failed to create NVIDIA control device nodes: %v", err)
+		}
+	}
+	return nil
+}

cmd/nvidia-ctk/system/print-ldcache/print-ldcache.go

@@ -0,0 +1,102 @@
+/**
+# Copyright (c) NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package createdevicenodes
+
+import (
+	"fmt"
+
+	"github.com/urfave/cli/v2"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/ldcache"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+)
+
+type command struct {
+	logger logger.Interface
+}
+
+type options struct {
+	driverRoot string
+}
+
+// NewCommand constructs a command sub-command with the specified logger
+func NewCommand(logger logger.Interface) *cli.Command {
+	c := command{
+		logger: logger,
+	}
+	return c.build()
+}
+
+// build
+func (m command) build() *cli.Command {
+	opts := options{}
+
+	c := cli.Command{
+		Name:  "print-ldcache",
+		Usage: "A utility to print the contents of the ldcache",
+		Before: func(c *cli.Context) error {
+			return m.validateFlags(c, &opts)
+		},
+		Action: func(c *cli.Context) error {
+			return m.run(c, &opts)
+		},
+	}
+
+	c.Flags = []cli.Flag{
+		&cli.StringFlag{
+			Name:        "driver-root",
+			Usage:       "the path to the driver root. Device nodes will be created at `DRIVER_ROOT`/dev",
+			Value:       "/",
+			Destination: &opts.driverRoot,
+			EnvVars:     []string{"DRIVER_ROOT"},
+		},
+	}
+
+	return &c
+}
+
+func (m command) validateFlags(r *cli.Context, opts *options) error {
+	return nil
+}
+
+func (m command) run(c *cli.Context, opts *options) error {
+	cache, err := ldcache.New(m.logger, opts.driverRoot)
+	if err != nil {
+		return fmt.Errorf("failed to create ldcache: %v", err)
+	}
+
+	lib32, lib64 := cache.List()
+
+	if len(lib32) == 0 {
+		m.logger.Info("No 32-bit libraries found")
+	} else {
+		m.logger.Infof("%d 32-bit libraries found", len(lib32))
+		for _, lib := range lib32 {
+			m.logger.Infof("%v", lib)
+		}
+	}
+	if len(lib64) == 0 {
+		m.logger.Info("No 64-bit libraries found")
+	} else {
+		m.logger.Infof("%d 64-bit libraries found", len(lib64))
+		for _, lib := range lib64 {
+			m.logger.Infof("%v", lib)
+		}
+	}
+
+	return nil
+}

cmd/nvidia-ctk/system/system.go

@@ -0,0 +1,54 @@
+/**
+# Copyright (c) NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package system
+
+import (
+	"github.com/urfave/cli/v2"
+
+	devchar "github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-ctk/system/create-dev-char-symlinks"
+	devicenodes "github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-ctk/system/create-device-nodes"
+	ldcache "github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-ctk/system/print-ldcache"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+)
+
+type command struct {
+	logger logger.Interface
+}
+
+// NewCommand constructs a runtime command with the specified logger
+func NewCommand(logger logger.Interface) *cli.Command {
+	c := command{
+		logger: logger,
+	}
+	return c.build()
+}
+
+func (m command) build() *cli.Command {
+	// Create the 'system' command
+	system := cli.Command{
+		Name:  "system",
+		Usage: "A collection of system-related utilities for the NVIDIA Container Toolkit",
+	}
+
+	system.Subcommands = []*cli.Command{
+		devchar.NewCommand(m.logger),
+		devicenodes.NewCommand(m.logger),
+		ldcache.NewCommand(m.logger),
+	}
+
+	return &system
+}

config/config.toml.amazonlinux

@@ -1,18 +0,0 @@
-disable-require = false
-#swarm-resource = "DOCKER_RESOURCE_GPU"
-#accept-nvidia-visible-devices-envvar-when-unprivileged = true
-#accept-nvidia-visible-devices-as-volume-mounts = false
-
-[nvidia-container-cli]
-#root = "/run/nvidia/driver"
-#path = "/usr/bin/nvidia-container-cli"
-environment = []
-#debug = "/var/log/nvidia-container-toolkit.log"
-#ldcache = "/etc/ld.so.cache"
-load-kmods = true
-#no-cgroups = false
-#user = "root:video"
-ldconfig = "@/sbin/ldconfig"
-
-[nvidia-container-runtime]
-#debug = "/var/log/nvidia-container-runtime.log"

config/config.toml.centos

@@ -1,18 +0,0 @@
-disable-require = false
-#swarm-resource = "DOCKER_RESOURCE_GPU"
-#accept-nvidia-visible-devices-envvar-when-unprivileged = true
-#accept-nvidia-visible-devices-as-volume-mounts = false
-
-[nvidia-container-cli]
-#root = "/run/nvidia/driver"
-#path = "/usr/bin/nvidia-container-cli"
-environment = []
-#debug = "/var/log/nvidia-container-toolkit.log"
-#ldcache = "/etc/ld.so.cache"
-load-kmods = true
-#no-cgroups = false
-#user = "root:video"
-ldconfig = "@/sbin/ldconfig"
-
-[nvidia-container-runtime]
-#debug = "/var/log/nvidia-container-runtime.log"

config/config.toml.debian

@@ -1,18 +0,0 @@
-disable-require = false
-#swarm-resource = "DOCKER_RESOURCE_GPU"
-#accept-nvidia-visible-devices-envvar-when-unprivileged = true
-#accept-nvidia-visible-devices-as-volume-mounts = false
-
-[nvidia-container-cli]
-#root = "/run/nvidia/driver"
-#path = "/usr/bin/nvidia-container-cli"
-environment = []
-#debug = "/var/log/nvidia-container-toolkit.log"
-#ldcache = "/etc/ld.so.cache"
-load-kmods = true
-#no-cgroups = false
-#user = "root:video"
-ldconfig = "@/sbin/ldconfig"
-
-[nvidia-container-runtime]
-#debug = "/var/log/nvidia-container-runtime.log"

config/config.toml.opensuse-leap

@@ -1,18 +0,0 @@
-disable-require = false
-#swarm-resource = "DOCKER_RESOURCE_GPU"
-#accept-nvidia-visible-devices-envvar-when-unprivileged = true
-#accept-nvidia-visible-devices-as-volume-mounts = false
-
-[nvidia-container-cli]
-#root = "/run/nvidia/driver"
-#path = "/usr/bin/nvidia-container-cli"
-environment = []
-#debug = "/var/log/nvidia-container-toolkit.log"
-#ldcache = "/etc/ld.so.cache"
-load-kmods = true
-#no-cgroups = false
-user = "root:video"
-ldconfig = "@/sbin/ldconfig"
-
-[nvidia-container-runtime]
-#debug = "/var/log/nvidia-container-runtime.log"

config/config.toml.ubuntu

@@ -1,18 +0,0 @@
-disable-require = false
-#swarm-resource = "DOCKER_RESOURCE_GPU"
-#accept-nvidia-visible-devices-envvar-when-unprivileged = true
-#accept-nvidia-visible-devices-as-volume-mounts = false
-
-[nvidia-container-cli]
-#root = "/run/nvidia/driver"
-#path = "/usr/bin/nvidia-container-cli"
-environment = []
-#debug = "/var/log/nvidia-container-toolkit.log"
-#ldcache = "/etc/ld.so.cache"
-load-kmods = true
-#no-cgroups = false
-#user = "root:video"
-ldconfig = "@/sbin/ldconfig.real"
-
-[nvidia-container-runtime]
-#debug = "/var/log/nvidia-container-runtime.log"

config/config.toml.ubuntu+jetpack

@@ -1,19 +0,0 @@
-disable-require = false
-supported-driver-capabilities = "compute,compat32,graphics,utility,video,display"
-#swarm-resource = "DOCKER_RESOURCE_GPU"
-#accept-nvidia-visible-devices-envvar-when-unprivileged = true
-#accept-nvidia-visible-devices-as-volume-mounts = false
-
-[nvidia-container-cli]
-#root = "/run/nvidia/driver"
-#path = "/usr/bin/nvidia-container-cli"
-environment = []
-#debug = "/var/log/nvidia-container-toolkit.log"
-#ldcache = "/etc/ld.so.cache"
-load-kmods = true
-#no-cgroups = false
-#user = "root:video"
-ldconfig = "@/sbin/ldconfig.real"
-
-[nvidia-container-runtime]
-#debug = "/var/log/nvidia-container-runtime.log"

docker/Dockerfile.amazonlinux

@@ -1,67 +0,0 @@
-ARG BASEIMAGE
-FROM ${BASEIMAGE}
-
-RUN yum install -y \
-        ca-certificates \
-        wget \
-        git \
-        rpm-build \
-        make && \
-    rm -rf /var/cache/yum/*
-
-ARG GOLANG_VERSION=0.0.0
-RUN set -eux; \
-    \
-    arch="$(uname -m)"; \
-    case "${arch##*-}" in \
-        x86_64 | amd64) ARCH='amd64' ;; \
-        ppc64el | ppc64le) ARCH='ppc64le' ;; \
-        aarch64) ARCH='arm64' ;; \
-        *) echo "unsupported architecture"; exit 1 ;; \
-    esac; \
-    wget -nv -O - https://storage.googleapis.com/golang/go${GOLANG_VERSION}.linux-${ARCH}.tar.gz \
-    | tar -C /usr/local -xz
-
-ENV GOPATH /go
-ENV PATH $GOPATH/bin:/usr/local/go/bin:$PATH
-
-# packaging
-ARG PKG_VERS
-ARG PKG_REV
-
-ENV VERSION $PKG_VERS
-ENV RELEASE $PKG_REV
-
-# output directory
-ENV DIST_DIR=/tmp/nvidia-container-toolkit-$PKG_VERS/SOURCES
-RUN mkdir -p $DIST_DIR /dist
-
-# nvidia-container-toolkit
-WORKDIR $GOPATH/src/nvidia-container-toolkit
-COPY . .
-
-RUN make PREFIX=${DIST_DIR} cmds
-
-ARG CONFIG_TOML_SUFFIX
-ENV CONFIG_TOML_SUFFIX ${CONFIG_TOML_SUFFIX}
-COPY config/config.toml.${CONFIG_TOML_SUFFIX} $DIST_DIR/config.toml
-
-# Hook for Project Atomic's fork of Docker: https://github.com/projectatomic/docker/tree/docker-1.13.1-rhel#add-dockerhooks-exec-custom-hooks-for-prestartpoststop-containerspatch
-# This might not be useful on Amazon Linux, but it's simpler to keep the RHEL
-# and Amazon Linux packages identical.
-COPY oci-nvidia-hook $DIST_DIR/oci-nvidia-hook
-
-# Hook for libpod/CRI-O: https://github.com/containers/libpod/blob/v0.8.5/pkg/hooks/docs/oci-hooks.5.md
-COPY oci-nvidia-hook.json $DIST_DIR/oci-nvidia-hook.json
-
-WORKDIR $DIST_DIR/..
-COPY packaging/rpm .
-
-CMD arch=$(uname -m) && \
-    rpmbuild --clean --target=$arch -bb \
-             -D "_topdir $PWD" \
-             -D "version $VERSION" \
-             -D "libnvidia_container_version ${VERSION}-${RELEASE}" \
-             -D "release $RELEASE" \
-             SPECS/nvidia-container-toolkit.spec && \
-    mv RPMS/$arch/*.rpm /dist

docker/Dockerfile.centos

@@ -1,74 +0,0 @@
-ARG BASEIMAGE
-FROM ${BASEIMAGE}
-
-ARG BASEIMAGE
-# See https://www.centos.org/centos-linux-eol/
-# and https://stackoverflow.com/a/70930049 for move to vault.centos.org
-# and https://serverfault.com/questions/1093922/failing-to-run-yum-update-in-centos-8 for move to vault.epel.cloud
-RUN [[ "${BASEIMAGE}" != "centos:8" ]] || \
-    ( \
-      sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-Linux-* && \
-      sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.epel.cloud|g' /etc/yum.repos.d/CentOS-Linux-* \
-    )
-RUN yum install -y \
-        ca-certificates \
-        wget \
-        git \
-        make \
-        rpm-build && \
-    rm -rf /var/cache/yum/*
-
-ARG GOLANG_VERSION=0.0.0
-RUN set -eux; \
-    \
-    arch="$(uname -m)"; \
-    case "${arch##*-}" in \
-        x86_64 | amd64) ARCH='amd64' ;; \
-        ppc64el | ppc64le) ARCH='ppc64le' ;; \
-        aarch64) ARCH='arm64' ;; \
-        *) echo "unsupported architecture"; exit 1 ;; \
-    esac; \
-    wget -nv -O - https://storage.googleapis.com/golang/go${GOLANG_VERSION}.linux-${ARCH}.tar.gz \
-    | tar -C /usr/local -xz
-
-ENV GOPATH /go
-ENV PATH $GOPATH/bin:/usr/local/go/bin:$PATH
-
-# packaging
-ARG PKG_VERS
-ARG PKG_REV
-
-ENV VERSION $PKG_VERS
-ENV RELEASE $PKG_REV
-
-# output directory
-ENV DIST_DIR=/tmp/nvidia-container-toolkit-$PKG_VERS/SOURCES
-RUN mkdir -p $DIST_DIR /dist
-
-# nvidia-container-toolkit
-WORKDIR $GOPATH/src/nvidia-container-toolkit
-COPY . .
-
-RUN make PREFIX=${DIST_DIR} cmds
-
-ARG CONFIG_TOML_SUFFIX
-ENV CONFIG_TOML_SUFFIX ${CONFIG_TOML_SUFFIX}
-COPY config/config.toml.${CONFIG_TOML_SUFFIX} $DIST_DIR/config.toml
-
-# Hook for Project Atomic's fork of Docker: https://github.com/projectatomic/docker/tree/docker-1.13.1-rhel#add-dockerhooks-exec-custom-hooks-for-prestartpoststop-containerspatch
-COPY oci-nvidia-hook $DIST_DIR/oci-nvidia-hook
-
-# Hook for libpod/CRI-O: https://github.com/containers/libpod/blob/v0.8.5/pkg/hooks/docs/oci-hooks.5.md
-COPY oci-nvidia-hook.json $DIST_DIR/oci-nvidia-hook.json
-
-WORKDIR $DIST_DIR/..
-COPY packaging/rpm .
-
-CMD arch=$(uname -m) && \
-    rpmbuild --clean --target=$arch -bb \
-             -D "_topdir $PWD" \
-             -D "version $VERSION" \
-             -D "libnvidia_container_version ${VERSION}-${RELEASE}" \
-             -D "release $RELEASE" \
-             SPECS/nvidia-container-toolkit.spec && \
-    mv RPMS/$arch/*.rpm /dist

docker/Dockerfile.debian

@@ -32,6 +32,7 @@ ENV GOPATH /go
 ENV PATH $GOPATH/bin:/usr/local/go/bin:$PATH
 
 # packaging
+ARG PKG_NAME
 ARG PKG_VERS
 ARG PKG_REV
 
@@ -48,26 +49,24 @@ RUN mkdir -p $DIST_DIR /dist
 WORKDIR $GOPATH/src/nvidia-container-toolkit
 COPY . .
 
+ARG GIT_COMMIT
+ENV GIT_COMMIT ${GIT_COMMIT}
 RUN make PREFIX=${DIST_DIR} cmds
 
-ARG CONFIG_TOML_SUFFIX
-ENV CONFIG_TOML_SUFFIX ${CONFIG_TOML_SUFFIX}
-COPY config/config.toml.${CONFIG_TOML_SUFFIX} $DIST_DIR/config.toml
-
-# Debian Jessie still had ldconfig.real
-RUN if [ "$(lsb_release -cs)" = "jessie" ]; then \
-       sed -i 's;"@/sbin/ldconfig";"@/sbin/ldconfig.real";' $DIST_DIR/config.toml; \
-    fi
-
 WORKDIR $DIST_DIR
 COPY packaging/debian ./debian
 
-RUN sed -i "s;@VERSION@;${REVISION};" debian/changelog && \
-    dch --changelog debian/changelog --append "Bump libnvidia-container dependency to ${REVISION}}" && \
-    dch --changelog debian/changelog -r "" && \
+ARG LIBNVIDIA_CONTAINER_TOOLS_VERSION
+ENV LIBNVIDIA_CONTAINER_TOOLS_VERSION ${LIBNVIDIA_CONTAINER_TOOLS_VERSION}
+
+RUN dch --create --package="${PKG_NAME}" \
+        --newversion "${REVISION}" \
+            "See https://gitlab.com/nvidia/container-toolkit/container-toolkit/-/blob/${GIT_COMMIT}/CHANGELOG.md for the changelog" && \
+    dch --append "Bump libnvidia-container dependency to ${LIBNVIDIA_CONTAINER1_VERSION}" && \
+    dch -r "" && \
     if [ "$REVISION" != "$(dpkg-parsechangelog --show-field=Version)" ]; then exit 1; fi
 
 CMD export DISTRIB="$(lsb_release -cs)" && \
-    debuild -eDISTRIB -eSECTION -eLIBNVIDIA_CONTAINER_VERSION="${REVISION}" \
+    debuild -eDISTRIB -eSECTION -eLIBNVIDIA_CONTAINER_TOOLS_VERSION -eVERSION="${REVISION}" \
     --dpkg-buildpackage-hook='sh debian/prepare' -i -us -uc -b && \
-    mv /tmp/nvidia-container-toolkit_*.deb /dist
+    mv /tmp/*.deb /dist

docker/Dockerfile.devel

@@ -12,9 +12,16 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 ARG GOLANG_VERSION=x.x.x
+ARG GOLANGCI_LINT_VERSION=v1.54.1
 FROM golang:${GOLANG_VERSION}
 
-RUN go get -u golang.org/x/lint/golint
-RUN go get -u github.com/matryer/moq
-RUN go get -u github.com/gordonklaus/ineffassign
-RUN go get -u github.com/client9/misspell/cmd/misspell
+RUN go install golang.org/x/lint/golint@6edffad5e6160f5949cdefc81710b2706fbcd4f6
+RUN go install github.com/matryer/moq@latest
+RUN go install github.com/gordonklaus/ineffassign@d2c82e48359b033cde9cf1307f6d5550b8d61321
+RUN go install github.com/client9/misspell/cmd/misspell@latest
+RUN go install github.com/google/go-licenses@latest
+RUN curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin ${GOLANGCI_LINT_VERSION}
+
+# We need to set the /work directory as a safe directory.
+# This allows git commands to run in the container.
+RUN git config --file=/.gitconfig --add safe.directory /work

docker/Dockerfile.opensuse-leap

@@ -25,11 +25,12 @@ ENV GOPATH /go
 ENV PATH $GOPATH/bin:/usr/local/go/bin:$PATH
 
 # packaging
+ARG PKG_NAME
 ARG PKG_VERS
 ARG PKG_REV
-
-ENV VERSION $PKG_VERS
-ENV RELEASE $PKG_REV
+ENV PKG_NAME ${PKG_NAME}
+ENV PKG_VERS ${PKG_VERS}
+ENV PKG_REV ${PKG_REV}
 
 # output directory
 ENV DIST_DIR=/tmp/nvidia-container-toolkit-$PKG_VERS/SOURCES
@@ -39,26 +40,23 @@ RUN mkdir -p $DIST_DIR /dist
 WORKDIR $GOPATH/src/nvidia-container-toolkit
 COPY . .
 
+ARG GIT_COMMIT
+ENV GIT_COMMIT ${GIT_COMMIT}
 RUN make PREFIX=${DIST_DIR} cmds
 
-# Hook for Project Atomic's fork of Docker: https://github.com/projectatomic/docker/tree/docker-1.13.1-rhel#add-dockerhooks-exec-custom-hooks-for-prestartpoststop-containerspatch
-COPY oci-nvidia-hook $DIST_DIR/oci-nvidia-hook
-
-# Hook for libpod/CRI-O: https://github.com/containers/libpod/blob/v0.8.5/pkg/hooks/docs/oci-hooks.5.md
-COPY oci-nvidia-hook.json $DIST_DIR/oci-nvidia-hook.json
-
-ARG CONFIG_TOML_SUFFIX
-ENV CONFIG_TOML_SUFFIX ${CONFIG_TOML_SUFFIX}
-COPY config/config.toml.${CONFIG_TOML_SUFFIX} $DIST_DIR/config.toml
-
 WORKDIR $DIST_DIR/..
 COPY packaging/rpm .
 
+ARG LIBNVIDIA_CONTAINER_TOOLS_VERSION
+ENV LIBNVIDIA_CONTAINER_TOOLS_VERSION ${LIBNVIDIA_CONTAINER_TOOLS_VERSION}
+
 CMD arch=$(uname -m) && \
     rpmbuild --clean --target=$arch -bb \
              -D "_topdir $PWD" \
-             -D "version $VERSION" \
-             -D "libnvidia_container_version ${VERSION}-${RELEASE}" \
-             -D "release $RELEASE" \
+             -D "release_date $(date +'%a %b %d %Y')" \
+             -D "git_commit ${GIT_COMMIT}" \
+             -D "version ${PKG_VERS}" \
+             -D "libnvidia_container_tools_version ${LIBNVIDIA_CONTAINER_TOOLS_VERSION}" \
+             -D "release ${PKG_REV}" \
              SPECS/nvidia-container-toolkit.spec && \
     mv RPMS/$arch/*.rpm /dist

docker/Dockerfile.rpm-yum

@@ -0,0 +1,80 @@
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This is the dockerfile for building packages on yum-based RPM systems.
+
+ARG BASEIMAGE
+FROM ${BASEIMAGE}
+
+RUN yum install -y \
+        ca-certificates \
+        gcc \
+        wget \
+        git \
+        make \
+        rpm-build && \
+    rm -rf /var/cache/yum/*
+
+ARG GOLANG_VERSION=0.0.0
+RUN set -eux; \
+    \
+    arch="$(uname -m)"; \
+    case "${arch##*-}" in \
+        x86_64 | amd64) ARCH='amd64' ;; \
+        ppc64el | ppc64le) ARCH='ppc64le' ;; \
+        aarch64) ARCH='arm64' ;; \
+        *) echo "unsupported architecture"; exit 1 ;; \
+    esac; \
+    wget -nv -O - https://storage.googleapis.com/golang/go${GOLANG_VERSION}.linux-${ARCH}.tar.gz \
+    | tar -C /usr/local -xz
+
+ENV GOPATH /go
+ENV PATH $GOPATH/bin:/usr/local/go/bin:$PATH
+
+# packaging
+ARG PKG_NAME
+ARG PKG_VERS
+ARG PKG_REV
+ENV PKG_NAME ${PKG_NAME}
+ENV PKG_VERS ${PKG_VERS}
+ENV PKG_REV ${PKG_REV}
+
+# output directory
+ENV DIST_DIR=/tmp/nvidia-container-toolkit-$PKG_VERS/SOURCES
+RUN mkdir -p $DIST_DIR /dist
+
+# nvidia-container-toolkit
+WORKDIR $GOPATH/src/nvidia-container-toolkit
+COPY . .
+
+ARG GIT_COMMIT
+ENV GIT_COMMIT ${GIT_COMMIT}
+RUN make PREFIX=${DIST_DIR} cmds
+
+WORKDIR $DIST_DIR/..
+COPY packaging/rpm .
+
+ARG LIBNVIDIA_CONTAINER_TOOLS_VERSION
+ENV LIBNVIDIA_CONTAINER_TOOLS_VERSION ${LIBNVIDIA_CONTAINER_TOOLS_VERSION}
+
+CMD arch=$(uname -m) && \
+    rpmbuild --clean --target=$arch -bb \
+             -D "_topdir $PWD" \
+             -D "release_date $(date +'%a %b %d %Y')" \
+             -D "git_commit ${GIT_COMMIT}" \
+             -D "version ${PKG_VERS}" \
+             -D "libnvidia_container_tools_version ${LIBNVIDIA_CONTAINER_TOOLS_VERSION}" \
+             -D "release ${PKG_REV}" \
+             SPECS/nvidia-container-toolkit.spec && \
+    mv RPMS/$arch/*.rpm /dist

docker/Dockerfile.ubuntu

@@ -30,6 +30,7 @@ ENV GOPATH /go
 ENV PATH $GOPATH/bin:/usr/local/go/bin:$PATH
 
 # packaging
+ARG PKG_NAME
 ARG PKG_VERS
 ARG PKG_REV
 
@@ -46,21 +47,24 @@ RUN mkdir -p $DIST_DIR /dist
 WORKDIR $GOPATH/src/nvidia-container-toolkit
 COPY . .
 
+ARG GIT_COMMIT
+ENV GIT_COMMIT ${GIT_COMMIT}
 RUN make PREFIX=${DIST_DIR} cmds
 
-ARG CONFIG_TOML_SUFFIX
-ENV CONFIG_TOML_SUFFIX ${CONFIG_TOML_SUFFIX}
-COPY config/config.toml.${CONFIG_TOML_SUFFIX} $DIST_DIR/config.toml
-
 WORKDIR $DIST_DIR
 COPY packaging/debian ./debian
 
-RUN sed -i "s;@VERSION@;${REVISION};" debian/changelog && \
-    dch --changelog debian/changelog --append "Bump libnvidia-container dependency to ${REVISION}}" && \
-    dch --changelog debian/changelog -r "" && \
+ARG LIBNVIDIA_CONTAINER_TOOLS_VERSION
+ENV LIBNVIDIA_CONTAINER_TOOLS_VERSION ${LIBNVIDIA_CONTAINER_TOOLS_VERSION}
+
+RUN dch --create --package="${PKG_NAME}" \
+        --newversion "${REVISION}" \
+            "See https://gitlab.com/nvidia/container-toolkit/container-toolkit/-/blob/${GIT_COMMIT}/CHANGELOG.md for the changelog" && \
+    dch --append "Bump libnvidia-container dependency to ${LIBNVIDIA_CONTAINER_TOOLS_VERSION}" && \
+    dch -r "" && \
     if [ "$REVISION" != "$(dpkg-parsechangelog --show-field=Version)" ]; then exit 1; fi
 
 CMD export DISTRIB="$(lsb_release -cs)" && \
-    debuild -eDISTRIB -eSECTION -eLIBNVIDIA_CONTAINER_VERSION="${REVISION}" \
+    debuild -eDISTRIB -eSECTION -eLIBNVIDIA_CONTAINER_TOOLS_VERSION -eVERSION="${REVISION}" \
     --dpkg-buildpackage-hook='sh debian/prepare' -i -us -uc -b && \
     mv /tmp/*.deb /dist

docker/docker.mk

@@ -17,7 +17,7 @@ AMD64_TARGETS := ubuntu20.04 ubuntu18.04 ubuntu16.04 debian10 debian9
 X86_64_TARGETS := centos7 centos8 rhel7 rhel8 amazonlinux2 opensuse-leap15.1
 PPC64LE_TARGETS := ubuntu18.04 ubuntu16.04 centos7 centos8 rhel7 rhel8
 ARM64_TARGETS := ubuntu20.04 ubuntu18.04
-AARCH64_TARGETS := centos8 rhel8 amazonlinux2
+AARCH64_TARGETS := centos7 centos8 rhel8 amazonlinux2
 
 # Define top-level build targets
 docker%: SHELL:=/bin/bash
@@ -85,37 +85,37 @@ docker-all: $(AMD64_TARGETS) $(X86_64_TARGETS) \
 --%: docker-build-%
 	@
 
+LIBNVIDIA_CONTAINER_VERSION ?= $(LIB_VERSION)
+LIBNVIDIA_CONTAINER_TAG ?= $(LIB_TAG)
+
+LIBNVIDIA_CONTAINER_TOOLS_VERSION := $(LIBNVIDIA_CONTAINER_VERSION)$(if $(LIBNVIDIA_CONTAINER_TAG),~$(LIBNVIDIA_CONTAINER_TAG))-1
+
 # private ubuntu target
 --ubuntu%: OS := ubuntu
---ubuntu%: LIB_VERSION := $(LIB_VERSION)$(if $(LIB_TAG),~$(LIB_TAG))
---ubuntu%: PKG_REV := 1
 
 # private debian target
 --debian%: OS := debian
---debian%: LIB_VERSION := $(LIB_VERSION)$(if $(LIB_TAG),~$(LIB_TAG))
---debian%: PKG_REV := 1
 
 # private centos target
 --centos%: OS := centos
---centos%: PKG_REV := $(if $(LIB_TAG),0.1.$(LIB_TAG),1)
+--centos%: DOCKERFILE = $(CURDIR)/docker/Dockerfile.rpm-yum
+--centos8%: BASEIMAGE = quay.io/centos/centos:stream8
 
 # private amazonlinux target
 --amazonlinux%: OS := amazonlinux
---amazonlinux%: PKG_REV := $(if $(LIB_TAG),0.1.$(LIB_TAG),1)
+--amazonlinux%: DOCKERFILE = $(CURDIR)/docker/Dockerfile.rpm-yum
 
 # private opensuse-leap target
 --opensuse-leap%: OS = opensuse-leap
 --opensuse-leap%: BASEIMAGE = opensuse/leap:$(VERSION)
---opensuse-leap%: PKG_REV := $(if $(LIB_TAG),0.1.$(LIB_TAG),1)
 
 # private rhel target (actually built on centos)
 --rhel%: OS := centos
---rhel%: PKG_REV := $(if $(LIB_TAG),0.1.$(LIB_TAG),1)
 --rhel%: VERSION = $(patsubst rhel%-$(ARCH),%,$(TARGET_PLATFORM))
 --rhel%: ARTIFACTS_DIR = $(DIST_DIR)/rhel$(VERSION)/$(ARCH)
+--rhel%: DOCKERFILE = $(CURDIR)/docker/Dockerfile.rpm-yum
+--rhel8%: BASEIMAGE = quay.io/centos/centos:stream8
 
-# We allow the CONFIG_TOML_SUFFIX to be overridden.
-CONFIG_TOML_SUFFIX ?= $(OS)
 
 docker-build-%:
 	@echo "Building for $(TARGET_PLATFORM)"
@@ -126,9 +126,11 @@ docker-build-%:
 	    --progress=plain \
 	    --build-arg BASEIMAGE="$(BASEIMAGE)" \
 	    --build-arg GOLANG_VERSION="$(GOLANG_VERSION)" \
-	    --build-arg PKG_VERS="$(LIB_VERSION)" \
-	    --build-arg PKG_REV="$(PKG_REV)" \
-	    --build-arg CONFIG_TOML_SUFFIX="$(CONFIG_TOML_SUFFIX)" \
+	    --build-arg PKG_NAME="$(LIB_NAME)" \
+	    --build-arg PKG_VERS="$(PACKAGE_VERSION)" \
+	    --build-arg PKG_REV="$(PACKAGE_REVISION)" \
+	    --build-arg LIBNVIDIA_CONTAINER_TOOLS_VERSION="$(LIBNVIDIA_CONTAINER_TOOLS_VERSION)" \
+	    --build-arg GIT_COMMIT="$(GIT_COMMIT)" \
 	    --tag $(BUILDIMAGE) \
 	    --file $(DOCKERFILE) .
 	$(DOCKER) run \

go.mod

@@ -1,16 +1,35 @@
 module github.com/NVIDIA/nvidia-container-toolkit
 
-go 1.14
+go 1.20
 
 require (
-	github.com/BurntSushi/toml v0.3.1
-	github.com/containers/podman/v2 v2.2.1
-	github.com/opencontainers/runtime-spec v1.0.3-0.20211101234015-a3c33d663ebc
-	github.com/pelletier/go-toml v1.9.3
-	github.com/sirupsen/logrus v1.8.1
-	github.com/stretchr/testify v1.7.0
-	github.com/tsaikd/KDGoLib v0.0.0-20191001134900-7f3cf518e07d
+	github.com/NVIDIA/go-nvlib v0.0.0-20231116150931-9fd385bace0d
+	github.com/NVIDIA/go-nvml v0.12.0-1.0.20231020145430-e06766c5e74f
+	github.com/fsnotify/fsnotify v1.5.4
+	github.com/opencontainers/runtime-spec v1.1.0
+	github.com/pelletier/go-toml v1.9.4
+	github.com/sirupsen/logrus v1.9.0
+	github.com/stretchr/testify v1.8.4
 	github.com/urfave/cli/v2 v2.3.0
-	golang.org/x/mod v0.3.0
-	golang.org/x/sys v0.0.0-20210426230700-d19ff857e887
+	golang.org/x/mod v0.5.0
+	golang.org/x/sys v0.7.0
+	tags.cncf.io/container-device-interface v0.6.2
+	tags.cncf.io/container-device-interface/specs-go v0.6.0
+)
+
+require (
+	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/hashicorp/errwrap v1.1.0 // indirect
+	github.com/kr/pretty v0.3.1 // indirect
+	github.com/opencontainers/runtime-tools v0.9.1-0.20221107090550-2e043c6bd626 // indirect
+	github.com/opencontainers/selinux v1.11.0 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	github.com/syndtr/gocapability v0.0.0-20200815063812-42c35b437635 // indirect
+	github.com/xeipuuv/gojsonpointer v0.0.0-20190905194746-02993c407bfb // indirect
+	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	sigs.k8s.io/yaml v1.3.0 // indirect
 )

go.sum

@@ -1,741 +1,98 @@
-bazil.org/fuse v0.0.0-20160811212531-371fbbdaa898/go.mod h1:Xbm+BRKSBEpa4q4hTSxohYNQpsxXPbPry4JJWOB3LB8=
-cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
-cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
-cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
-cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
-cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
-cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
-cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
-cloud.google.com/go/firestore v1.1.0/go.mod h1:ulACoGHTpvq5r8rxGJ4ddJZBZqakUQqClKRT5SZwBmk=
-cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
-cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
-dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
-github.com/14rcole/gopopulate v0.0.0-20180821133914-b175b219e774/go.mod h1:6/0dYRLLXyJjbkIPeeGyoJ/eKOSI0eU6eTlCBYibgd0=
-github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
-github.com/Azure/go-autorest v11.1.2+incompatible/go.mod h1:r+4oMnoxhatjLLJ6zxSWATqVooLgysK6ZNox3g/xq24=
-github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
-github.com/Microsoft/go-winio v0.4.11/go.mod h1:VhR8bwka0BXejwEJY73c50VrPtXAaKcyvVC4A4RozmA=
-github.com/Microsoft/go-winio v0.4.15-0.20190919025122-fc70bd9a86b5/go.mod h1:tTuCMEN+UleMWgg9dVx4Hu52b1bJo+59jBh3ajtinzw=
-github.com/Microsoft/go-winio v0.4.15-0.20200113171025-3fe6c5262873/go.mod h1:tTuCMEN+UleMWgg9dVx4Hu52b1bJo+59jBh3ajtinzw=
-github.com/Microsoft/go-winio v0.4.15/go.mod h1:tTuCMEN+UleMWgg9dVx4Hu52b1bJo+59jBh3ajtinzw=
-github.com/Microsoft/hcsshim v0.8.6/go.mod h1:Op3hHsoHPAvb6lceZHDtd9OkTew38wNoXnJs8iY7rUg=
-github.com/Microsoft/hcsshim v0.8.9/go.mod h1:5692vkUqntj1idxauYlpoINNKeqCiG6Sg38RRsjT5y8=
-github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ=
-github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
-github.com/PuerkitoBio/purell v1.0.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
-github.com/PuerkitoBio/urlesc v0.0.0-20160726150825-5bd2802263f2/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
-github.com/VividCortex/ewma v1.1.1/go.mod h1:2Tkkvm3sRDVXaiyucHiACn4cqf7DpdyLvmxzcbUokwA=
-github.com/acarl005/stripansi v0.0.0-20180116102854-5a71ef0e047d/go.mod h1:asat636LX7Bqt5lYEZ27JNDcqxfjdBQuJ/MM4CN/Lzo=
-github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
-github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
-github.com/alexflint/go-filemutex v0.0.0-20171022225611-72bdc8eae2ae/go.mod h1:CgnQgUtFrFz9mxFNtED3jI5tLDjKlOM+oUF/sTk6ps0=
-github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
-github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
-github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
-github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
-github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
-github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
-github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
-github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
-github.com/bketelsen/crypt v0.0.3-0.20200106085610-5cbc8cc4026c/go.mod h1:MKsuJmJgSg28kpZDP6UIiPt0e0Oz0kqKNGyRaWEPv84=
-github.com/blang/semver v3.5.1+incompatible/go.mod h1:kRBLl5iJ+tD4TcOOxsy/0fnwebNt5EWlYSAyrTnjyyk=
-github.com/buger/goterm v0.0.0-20181115115552-c206103e1f37/go.mod h1:u9UyCz2eTrSGy6fbupqJ54eY5c4IC8gREQ1053dK12U=
-github.com/buger/jsonparser v0.0.0-20180808090653-f4dd9f5a6b44/go.mod h1:bbYlZJ7hK1yFx9hf58LP0zeX7UjIGs20ufpu3evjr+s=
-github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
-github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
-github.com/checkpoint-restore/go-criu v0.0.0-20190109184317-bdb7599cd87b/go.mod h1:TrMrLQfeENAPYPRsJuq3jsqdlRh3lvi6trTZJG8+tho=
-github.com/checkpoint-restore/go-criu/v4 v4.0.2/go.mod h1:xUQBLp4RLc5zJtWY++yjOoMoB5lihDt7fai+75m+rGw=
-github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
-github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
-github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
-github.com/cilium/ebpf v0.0.0-20200507155900-a9f01edf17e3/go.mod h1:XT+cAw5wfvsodedcijoh1l9cf7v1x9FlFB/3VmF/O8s=
-github.com/cilium/ebpf v0.0.0-20200702112145-1c8d4c9ef775/go.mod h1:7cR51M8ViRLIdUjrmSXlK9pkrsDlLHbO8jiB8X8JnOc=
-github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
-github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
-github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd/go.mod h1:sE/e/2PUdi/liOCUjSTXgM1o87ZssimdTWN964YiIeI=
-github.com/codegangsta/inject v0.0.0-20150114235600-33e0aa1cb7c0/go.mod h1:4Zcjuz89kmFXt9morQgcfYZAYZ5n8WHjt81YYWIwtTM=
-github.com/containerd/cgroups v0.0.0-20190919134610-bf292b21730f/go.mod h1:OApqhQ4XNSNC13gXIwDjhOQxjWa/NxkwZXJ1EvqT0ko=
-github.com/containerd/console v0.0.0-20180822173158-c12b1e7919c1/go.mod h1:Tj/on1eG8kiEhd0+fhSDzsPAFESxzBBvdyEgyryXffw=
-github.com/containerd/console v1.0.0/go.mod h1:8Pf4gM6VEbTNRIT26AyyU7hxdQU3MvAvxVI0sc00XBE=
-github.com/containerd/containerd v1.3.2/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
-github.com/containerd/containerd v1.3.4/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
-github.com/containerd/containerd v1.4.1/go.mod h1:bC6axHOhabU15QhwfG7w5PipXdVtMXFTttgp+kVtyUA=
-github.com/containerd/continuity v0.0.0-20190426062206-aaeac12a7ffc/go.mod h1:GL3xCUCBDV3CZiTSEKksMWbLE66hEyuu9qyDOOqM47Y=
-github.com/containerd/continuity v0.0.0-20200413184840-d3ef23f19fbb/go.mod h1:Dq467ZllaHgAtVp4p1xUQWBrFXR9s/wyoTpG8zOJGkY=
-github.com/containerd/fifo v0.0.0-20190226154929-a9fb20d87448/go.mod h1:ODA38xgv3Kuk8dQz2ZQXpnv/UZZUHUCL7pnLehbXgQI=
-github.com/containerd/go-runc v0.0.0-20180907222934-5a6d9f37cfa3/go.mod h1:IV7qH3hrUgRmyYrtgEeGWJfWbgcHL9CSRruz2Vqcph0=
-github.com/containerd/ttrpc v0.0.0-20190828154514-0e0f228740de/go.mod h1:PvCDdDGpgqzQIzDW1TphrGLssLDZp2GuS+X5DkEJB8o=
-github.com/containerd/typeurl v0.0.0-20180627222232-a93fcdb778cd/go.mod h1:Cm3kwCdlkCfMSHURc+r6fwoGH6/F1hH3S4sg0rLFWPc=
-github.com/containernetworking/cni v0.7.2-0.20190904153231-83439463f784/go.mod h1:LGwApLUm2FpoOfxTDEeq8T9ipbpZ61X79hmU3w8FmsY=
-github.com/containernetworking/cni v0.8.0/go.mod h1:LGwApLUm2FpoOfxTDEeq8T9ipbpZ61X79hmU3w8FmsY=
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internal/config/cli.go

@@ -0,0 +1,62 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package config
+
+import (
+	"os"
+	"strings"
+)
+
+// ContainerCLIConfig stores the options for the nvidia-container-cli
+type ContainerCLIConfig struct {
+	Root        string   `toml:"root"`
+	Path        string   `toml:"path"`
+	Environment []string `toml:"environment"`
+	Debug       string   `toml:"debug"`
+	Ldcache     string   `toml:"ldcache"`
+	LoadKmods   bool     `toml:"load-kmods"`
+	// NoPivot disables the pivot root operation in the NVIDIA Container CLI.
+	// This is not exposed in the config if not set.
+	NoPivot   bool   `toml:"no-pivot,omitempty"`
+	NoCgroups bool   `toml:"no-cgroups"`
+	User      string `toml:"user"`
+	Ldconfig  string `toml:"ldconfig"`
+}
+
+// NormalizeLDConfigPath returns the resolved path of the configured LDConfig binary.
+// This is only done for host LDConfigs and is required to handle systems where
+// /sbin/ldconfig is a wrapper around /sbin/ldconfig.real.
+func (c *ContainerCLIConfig) NormalizeLDConfigPath() string {
+	return NormalizeLDConfigPath(c.Ldconfig)
+}
+
+// NormalizeLDConfigPath returns the resolved path of the configured LDConfig binary.
+// This is only done for host LDConfigs and is required to handle systems where
+// /sbin/ldconfig is a wrapper around /sbin/ldconfig.real.
+func NormalizeLDConfigPath(path string) string {
+	if !strings.HasPrefix(path, "@") {
+		return path
+	}
+
+	trimmedPath := strings.TrimSuffix(strings.TrimPrefix(path, "@"), ".real")
+	// If the .real path exists, we return that.
+	if _, err := os.Stat(trimmedPath + ".real"); err == nil {
+		return "@" + trimmedPath + ".real"
+	}
+	// If the .real path does not exists (or cannot be read) we return the non-.real path.
+	return "@" + trimmedPath
+}

internal/config/cli_test.go

@@ -0,0 +1,83 @@
+/**
+# Copyright 2023 NVIDIA CORPORATION
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package config
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestNormalizeLDConfigPath(t *testing.T) {
+	testDir := t.TempDir()
+
+	f, err := os.Create(filepath.Join(testDir, "exists.real"))
+	require.NoError(t, err)
+	_ = f.Close()
+
+	testCases := []struct {
+		description string
+		ldconfig    string
+		expected    string
+	}{
+		{
+			description: "empty input",
+		},
+		{
+			description: "non-host with .real suffix returns as is",
+			ldconfig:    "/some/path/ldconfig.real",
+			expected:    "/some/path/ldconfig.real",
+		},
+		{
+			description: "non-host without .real suffix returns as is",
+			ldconfig:    "/some/path/ldconfig",
+			expected:    "/some/path/ldconfig",
+		},
+		{
+			description: "host .real file exists is returned",
+			ldconfig:    "@" + filepath.Join(testDir, "exists.real"),
+			expected:    "@" + filepath.Join(testDir, "exists.real"),
+		},
+		{
+			description: "host resolves .real file",
+			ldconfig:    "@" + filepath.Join(testDir, "exists"),
+			expected:    "@" + filepath.Join(testDir, "exists.real"),
+		},
+		{
+			description: "host .real file not exists strips suffix",
+			ldconfig:    "@/does/not/exist.real",
+			expected:    "@/does/not/exist",
+		},
+		{
+			description: "host file returned as is if no .real file exsits",
+			ldconfig:    "@/does/not/exist",
+			expected:    "@/does/not/exist",
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.description, func(t *testing.T) {
+			c := ContainerCLIConfig{
+				Ldconfig: tc.ldconfig,
+			}
+
+			require.Equal(t, tc.expected, c.NormalizeLDConfigPath())
+		})
+	}
+}

internal/config/config.go

@@ -0,0 +1,213 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package config
+
+import (
+	"bufio"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"tags.cncf.io/container-device-interface/pkg/cdi"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/config/image"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/lookup"
+)
+
+const (
+	configOverride = "XDG_CONFIG_HOME"
+	configFilePath = "nvidia-container-runtime/config.toml"
+
+	nvidiaCTKExecutable      = "nvidia-ctk"
+	nvidiaCTKDefaultFilePath = "/usr/bin/nvidia-ctk"
+
+	nvidiaContainerRuntimeHookExecutable  = "nvidia-container-runtime-hook"
+	nvidiaContainerRuntimeHookDefaultPath = "/usr/bin/nvidia-container-runtime-hook"
+)
+
+var (
+	// DefaultExecutableDir specifies the default path to use for executables if they cannot be located in the path.
+	DefaultExecutableDir = "/usr/bin"
+
+	// NVIDIAContainerRuntimeHookExecutable is the executable name for the NVIDIA Container Runtime Hook
+	NVIDIAContainerRuntimeHookExecutable = "nvidia-container-runtime-hook"
+	// NVIDIAContainerToolkitExecutable is the executable name for the NVIDIA Container Toolkit (an alias for the NVIDIA Container Runtime Hook)
+	NVIDIAContainerToolkitExecutable = "nvidia-container-toolkit"
+)
+
+// Config represents the contents of the config.toml file for the NVIDIA Container Toolkit
+// Note: This is currently duplicated by the HookConfig in cmd/nvidia-container-toolkit/hook_config.go
+type Config struct {
+	DisableRequire                 bool   `toml:"disable-require"`
+	SwarmResource                  string `toml:"swarm-resource"`
+	AcceptEnvvarUnprivileged       bool   `toml:"accept-nvidia-visible-devices-envvar-when-unprivileged"`
+	AcceptDeviceListAsVolumeMounts bool   `toml:"accept-nvidia-visible-devices-as-volume-mounts"`
+	SupportedDriverCapabilities    string `toml:"supported-driver-capabilities"`
+
+	NVIDIAContainerCLIConfig         ContainerCLIConfig `toml:"nvidia-container-cli"`
+	NVIDIACTKConfig                  CTKConfig          `toml:"nvidia-ctk"`
+	NVIDIAContainerRuntimeConfig     RuntimeConfig      `toml:"nvidia-container-runtime"`
+	NVIDIAContainerRuntimeHookConfig RuntimeHookConfig  `toml:"nvidia-container-runtime-hook"`
+}
+
+// GetConfigFilePath returns the path to the config file for the configured system
+func GetConfigFilePath() string {
+	if XDGConfigDir := os.Getenv(configOverride); len(XDGConfigDir) != 0 {
+		return filepath.Join(XDGConfigDir, configFilePath)
+	}
+
+	return filepath.Join("/etc", configFilePath)
+}
+
+// GetConfig sets up the config struct. Values are read from a toml file
+// or set via the environment.
+func GetConfig() (*Config, error) {
+	cfg, err := New(
+		WithConfigFile(GetConfigFilePath()),
+	)
+	if err != nil {
+		return nil, err
+	}
+
+	return cfg.Config()
+}
+
+// GetDefault defines the default values for the config
+func GetDefault() (*Config, error) {
+	d := Config{
+		AcceptEnvvarUnprivileged:    true,
+		SupportedDriverCapabilities: image.SupportedDriverCapabilities.String(),
+		NVIDIAContainerCLIConfig: ContainerCLIConfig{
+			LoadKmods: true,
+			Ldconfig:  getLdConfigPath(),
+		},
+		NVIDIACTKConfig: CTKConfig{
+			Path: nvidiaCTKExecutable,
+		},
+		NVIDIAContainerRuntimeConfig: RuntimeConfig{
+			DebugFilePath: "/dev/null",
+			LogLevel:      "info",
+			Runtimes:      []string{"docker-runc", "runc"},
+			Mode:          "auto",
+			Modes: modesConfig{
+				CSV: csvModeConfig{
+					MountSpecPath: "/etc/nvidia-container-runtime/host-files-for-container.d",
+				},
+				CDI: cdiModeConfig{
+					DefaultKind:        "nvidia.com/gpu",
+					AnnotationPrefixes: []string{cdi.AnnotationPrefix},
+					SpecDirs:           cdi.DefaultSpecDirs,
+				},
+			},
+		},
+		NVIDIAContainerRuntimeHookConfig: RuntimeHookConfig{
+			Path: NVIDIAContainerRuntimeHookExecutable,
+		},
+	}
+	return &d, nil
+}
+
+func getLdConfigPath() string {
+	return NormalizeLDConfigPath("@/sbin/ldconfig")
+}
+
+// getCommentedUserGroup returns whether the nvidia-container-cli user and group config option should be commented.
+func getCommentedUserGroup() bool {
+	uncommentIf := map[string]bool{
+		"suse":     true,
+		"opensuse": true,
+	}
+
+	idsLike := getDistIDLike()
+	for _, id := range idsLike {
+		if uncommentIf[id] {
+			return false
+		}
+	}
+	return true
+}
+
+// getDistIDLike returns the ID_LIKE field from /etc/os-release.
+func getDistIDLike() []string {
+	releaseFile, err := os.Open("/etc/os-release")
+	if err != nil {
+		return nil
+	}
+	defer releaseFile.Close()
+
+	scanner := bufio.NewScanner(releaseFile)
+	for scanner.Scan() {
+		line := scanner.Text()
+		if strings.HasPrefix(line, "ID_LIKE=") {
+			value := strings.Trim(strings.TrimPrefix(line, "ID_LIKE="), "\"")
+			return strings.Split(value, " ")
+		}
+	}
+	return nil
+}
+
+// ResolveNVIDIACTKPath resolves the path to the nvidia-ctk binary.
+// This executable is used in hooks and needs to be an absolute path.
+// If the path is specified as an absolute path, it is used directly
+// without checking for existence of an executable at that path.
+func ResolveNVIDIACTKPath(logger logger.Interface, nvidiaCTKPath string) string {
+	return resolveWithDefault(
+		logger,
+		"NVIDIA Container Toolkit CLI",
+		nvidiaCTKPath,
+		nvidiaCTKDefaultFilePath,
+	)
+}
+
+// ResolveNVIDIAContainerRuntimeHookPath resolves the path the nvidia-container-runtime-hook binary.
+func ResolveNVIDIAContainerRuntimeHookPath(logger logger.Interface, nvidiaContainerRuntimeHookPath string) string {
+	return resolveWithDefault(
+		logger,
+		"NVIDIA Container Runtime Hook",
+		nvidiaContainerRuntimeHookPath,
+		nvidiaContainerRuntimeHookDefaultPath,
+	)
+}
+
+// resolveWithDefault resolves the path to the specified binary.
+// If an absolute path is specified, it is used directly without searching for the binary.
+// If the binary cannot be found in the path, the specified default is used instead.
+func resolveWithDefault(logger logger.Interface, label string, path string, defaultPath string) string {
+	if filepath.IsAbs(path) {
+		logger.Debugf("Using specified %v path %v", label, path)
+		return path
+	}
+
+	if path == "" {
+		path = filepath.Base(defaultPath)
+	}
+	logger.Debugf("Locating %v as %v", label, path)
+	lookup := lookup.NewExecutableLocator(logger, "")
+
+	resolvedPath := defaultPath
+	targets, err := lookup.Locate(path)
+	if err != nil {
+		logger.Warningf("Failed to locate %v: %v", path, err)
+	} else {
+		logger.Debugf("Found %v candidates: %v", path, targets)
+		resolvedPath = targets[0]
+	}
+	logger.Debugf("Using %v path %v", label, path)
+
+	return resolvedPath
+}

internal/config/config_test.go

@@ -0,0 +1,238 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package config
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetConfigWithCustomConfig(t *testing.T) {
+	testDir := t.TempDir()
+	t.Setenv(configOverride, testDir)
+
+	filename := filepath.Join(testDir, configFilePath)
+
+	// By default debug is disabled
+	contents := []byte("[nvidia-container-runtime]\ndebug = \"/nvidia-container-toolkit.log\"")
+
+	require.NoError(t, os.MkdirAll(filepath.Dir(filename), 0766))
+	require.NoError(t, os.WriteFile(filename, contents, 0600))
+
+	cfg, err := GetConfig()
+	require.NoError(t, err)
+	require.Equal(t, "/nvidia-container-toolkit.log", cfg.NVIDIAContainerRuntimeConfig.DebugFilePath)
+}
+
+func TestGetConfig(t *testing.T) {
+	testCases := []struct {
+		description     string
+		contents        []string
+		expectedError   error
+		inspectLdconfig bool
+		expectedConfig  *Config
+	}{
+		{
+			description:     "empty config is default",
+			inspectLdconfig: true,
+			expectedConfig: &Config{
+				AcceptEnvvarUnprivileged:    true,
+				SupportedDriverCapabilities: "compat32,compute,display,graphics,ngx,utility,video",
+				NVIDIAContainerCLIConfig: ContainerCLIConfig{
+					Root:      "",
+					LoadKmods: true,
+					Ldconfig:  "WAS_CHECKED",
+				},
+				NVIDIAContainerRuntimeConfig: RuntimeConfig{
+					DebugFilePath: "/dev/null",
+					LogLevel:      "info",
+					Runtimes:      []string{"docker-runc", "runc"},
+					Mode:          "auto",
+					Modes: modesConfig{
+						CSV: csvModeConfig{
+							MountSpecPath: "/etc/nvidia-container-runtime/host-files-for-container.d",
+						},
+						CDI: cdiModeConfig{
+							DefaultKind:        "nvidia.com/gpu",
+							AnnotationPrefixes: []string{"cdi.k8s.io/"},
+							SpecDirs:           []string{"/etc/cdi", "/var/run/cdi"},
+						},
+					},
+				},
+				NVIDIAContainerRuntimeHookConfig: RuntimeHookConfig{
+					Path: "nvidia-container-runtime-hook",
+				},
+				NVIDIACTKConfig: CTKConfig{
+					Path: "nvidia-ctk",
+				},
+			},
+		},
+		{
+			description: "config options set inline",
+			contents: []string{
+				"accept-nvidia-visible-devices-envvar-when-unprivileged = false",
+				"supported-driver-capabilities = \"compute,utility\"",
+				"nvidia-container-cli.root = \"/bar/baz\"",
+				"nvidia-container-cli.load-kmods = false",
+				"nvidia-container-cli.ldconfig = \"/foo/bar/ldconfig\"",
+				"nvidia-container-runtime.debug = \"/foo/bar\"",
+				"nvidia-container-runtime.discover-mode = \"not-legacy\"",
+				"nvidia-container-runtime.log-level = \"debug\"",
+				"nvidia-container-runtime.runtimes = [\"/some/runtime\",]",
+				"nvidia-container-runtime.mode = \"not-auto\"",
+				"nvidia-container-runtime.modes.cdi.default-kind = \"example.vendor.com/device\"",
+				"nvidia-container-runtime.modes.cdi.annotation-prefixes = [\"cdi.k8s.io/\", \"example.vendor.com/\",]",
+				"nvidia-container-runtime.modes.cdi.spec-dirs = [\"/except/etc/cdi\", \"/not/var/run/cdi\",]",
+				"nvidia-container-runtime.modes.csv.mount-spec-path = \"/not/etc/nvidia-container-runtime/host-files-for-container.d\"",
+				"nvidia-container-runtime-hook.path = \"/foo/bar/nvidia-container-runtime-hook\"",
+				"nvidia-ctk.path = \"/foo/bar/nvidia-ctk\"",
+			},
+			expectedConfig: &Config{
+				AcceptEnvvarUnprivileged:    false,
+				SupportedDriverCapabilities: "compute,utility",
+				NVIDIAContainerCLIConfig: ContainerCLIConfig{
+					Root:      "/bar/baz",
+					LoadKmods: false,
+					Ldconfig:  "/foo/bar/ldconfig",
+				},
+				NVIDIAContainerRuntimeConfig: RuntimeConfig{
+					DebugFilePath: "/foo/bar",
+					LogLevel:      "debug",
+					Runtimes:      []string{"/some/runtime"},
+					Mode:          "not-auto",
+					Modes: modesConfig{
+						CSV: csvModeConfig{
+							MountSpecPath: "/not/etc/nvidia-container-runtime/host-files-for-container.d",
+						},
+						CDI: cdiModeConfig{
+							DefaultKind: "example.vendor.com/device",
+							AnnotationPrefixes: []string{
+								"cdi.k8s.io/",
+								"example.vendor.com/",
+							},
+							SpecDirs: []string{
+								"/except/etc/cdi",
+								"/not/var/run/cdi",
+							},
+						},
+					},
+				},
+				NVIDIAContainerRuntimeHookConfig: RuntimeHookConfig{
+					Path: "/foo/bar/nvidia-container-runtime-hook",
+				},
+				NVIDIACTKConfig: CTKConfig{
+					Path: "/foo/bar/nvidia-ctk",
+				},
+			},
+		},
+		{
+			description: "config options set in section",
+			contents: []string{
+				"accept-nvidia-visible-devices-envvar-when-unprivileged = false",
+				"supported-driver-capabilities = \"compute,utility\"",
+				"[nvidia-container-cli]",
+				"root = \"/bar/baz\"",
+				"load-kmods = false",
+				"ldconfig = \"/foo/bar/ldconfig\"",
+				"[nvidia-container-runtime]",
+				"debug = \"/foo/bar\"",
+				"discover-mode = \"not-legacy\"",
+				"log-level = \"debug\"",
+				"runtimes = [\"/some/runtime\",]",
+				"mode = \"not-auto\"",
+				"[nvidia-container-runtime.modes.cdi]",
+				"default-kind = \"example.vendor.com/device\"",
+				"annotation-prefixes = [\"cdi.k8s.io/\", \"example.vendor.com/\",]",
+				"spec-dirs = [\"/except/etc/cdi\", \"/not/var/run/cdi\",]",
+				"[nvidia-container-runtime.modes.csv]",
+				"mount-spec-path = \"/not/etc/nvidia-container-runtime/host-files-for-container.d\"",
+				"[nvidia-container-runtime-hook]",
+				"path = \"/foo/bar/nvidia-container-runtime-hook\"",
+				"[nvidia-ctk]",
+				"path = \"/foo/bar/nvidia-ctk\"",
+			},
+			expectedConfig: &Config{
+				AcceptEnvvarUnprivileged:    false,
+				SupportedDriverCapabilities: "compute,utility",
+				NVIDIAContainerCLIConfig: ContainerCLIConfig{
+					Root:      "/bar/baz",
+					LoadKmods: false,
+					Ldconfig:  "/foo/bar/ldconfig",
+				},
+				NVIDIAContainerRuntimeConfig: RuntimeConfig{
+					DebugFilePath: "/foo/bar",
+					LogLevel:      "debug",
+					Runtimes:      []string{"/some/runtime"},
+					Mode:          "not-auto",
+					Modes: modesConfig{
+						CSV: csvModeConfig{
+							MountSpecPath: "/not/etc/nvidia-container-runtime/host-files-for-container.d",
+						},
+						CDI: cdiModeConfig{
+							DefaultKind: "example.vendor.com/device",
+							AnnotationPrefixes: []string{
+								"cdi.k8s.io/",
+								"example.vendor.com/",
+							},
+							SpecDirs: []string{
+								"/except/etc/cdi",
+								"/not/var/run/cdi",
+							},
+						},
+					},
+				},
+				NVIDIAContainerRuntimeHookConfig: RuntimeHookConfig{
+					Path: "/foo/bar/nvidia-container-runtime-hook",
+				},
+				NVIDIACTKConfig: CTKConfig{
+					Path: "/foo/bar/nvidia-ctk",
+				},
+			},
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.description, func(t *testing.T) {
+			reader := strings.NewReader(strings.Join(tc.contents, "\n"))
+
+			tomlCfg, err := loadConfigTomlFrom(reader)
+			if tc.expectedError != nil {
+				require.Error(t, err)
+			} else {
+				require.NoError(t, err)
+			}
+			cfg, err := tomlCfg.Config()
+			require.NoError(t, err)
+
+			// We first handle the ldconfig path since this is currently system-dependent.
+			if tc.inspectLdconfig {
+				ldconfig := cfg.NVIDIAContainerCLIConfig.Ldconfig
+				require.True(t, strings.HasPrefix(ldconfig, "@/sbin/ldconfig"))
+				remaining := strings.TrimPrefix(ldconfig, "@/sbin/ldconfig")
+				require.True(t, remaining == ".real" || remaining == "")
+
+				cfg.NVIDIAContainerCLIConfig.Ldconfig = "WAS_CHECKED"
+			}
+
+			require.EqualValues(t, tc.expectedConfig, cfg)
+		})
+	}
+}

internal/config/hook.go

@@ -0,0 +1,36 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package config
+
+// RuntimeHookConfig stores the config options for the NVIDIA Container Runtime
+type RuntimeHookConfig struct {
+	// Path specifies the path to the NVIDIA Container Runtime hook binary.
+	// If an executable name is specified, this will be resolved in the path.
+	Path string `toml:"path"`
+	// SkipModeDetection disables the mode check for the runtime hook.
+	SkipModeDetection bool `toml:"skip-mode-detection"`
+}
+
+// GetDefaultRuntimeHookConfig defines the default values for the config
+func GetDefaultRuntimeHookConfig() (*RuntimeHookConfig, error) {
+	cfg, err := GetDefault()
+	if err != nil {
+		return nil, err
+	}
+
+	return &cfg.NVIDIAContainerRuntimeHookConfig, nil
+}

internal/config/image/builder.go

@@ -0,0 +1,102 @@
+/**
+# Copyright (c) NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package image
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/opencontainers/runtime-spec/specs-go"
+)
+
+type builder struct {
+	env            map[string]string
+	mounts         []specs.Mount
+	disableRequire bool
+}
+
+// New creates a new CUDA image from the input options.
+func New(opt ...Option) (CUDA, error) {
+	b := &builder{}
+	for _, o := range opt {
+		if err := o(b); err != nil {
+			return CUDA{}, err
+		}
+	}
+	if b.env == nil {
+		b.env = make(map[string]string)
+	}
+
+	return b.build()
+}
+
+// build creates a CUDA image from the builder.
+func (b builder) build() (CUDA, error) {
+	if b.disableRequire {
+		b.env[envNVDisableRequire] = "true"
+	}
+
+	c := CUDA{
+		env:    b.env,
+		mounts: b.mounts,
+	}
+	return c, nil
+}
+
+// Option is a functional option for creating a CUDA image.
+type Option func(*builder) error
+
+// WithDisableRequire sets the disable require option.
+func WithDisableRequire(disableRequire bool) Option {
+	return func(b *builder) error {
+		b.disableRequire = disableRequire
+		return nil
+	}
+}
+
+// WithEnv sets the environment variables to use when creating the CUDA image.
+// Note that this also overwrites the values set with WithEnvMap.
+func WithEnv(env []string) Option {
+	return func(b *builder) error {
+		envmap := make(map[string]string)
+		for _, e := range env {
+			parts := strings.SplitN(e, "=", 2)
+			if len(parts) != 2 {
+				return fmt.Errorf("invalid environment variable: %v", e)
+			}
+			envmap[parts[0]] = parts[1]
+		}
+		return WithEnvMap(envmap)(b)
+	}
+}
+
+// WithEnvMap sets the environment variable map to use when creating the CUDA image.
+// Note that this also overwrites the values set with WithEnv.
+func WithEnvMap(env map[string]string) Option {
+	return func(b *builder) error {
+		b.env = env
+		return nil
+	}
+}
+
+// WithMounts sets the mounts associated with the CUDA image.
+func WithMounts(mounts []specs.Mount) Option {
+	return func(b *builder) error {
+		b.mounts = mounts
+		return nil
+	}
+}

internal/config/image/capabilities.go

@@ -0,0 +1,146 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package image
+
+import (
+	"sort"
+	"strings"
+)
+
+// DriverCapability represents the possible values of NVIDIA_DRIVER_CAPABILITIES
+type DriverCapability string
+
+// Constants for the supported driver capabilities
+const (
+	DriverCapabilityAll      DriverCapability = "all"
+	DriverCapabilityNone     DriverCapability = "none"
+	DriverCapabilityCompat32 DriverCapability = "compat32"
+	DriverCapabilityCompute  DriverCapability = "compute"
+	DriverCapabilityDisplay  DriverCapability = "display"
+	DriverCapabilityGraphics DriverCapability = "graphics"
+	DriverCapabilityNgx      DriverCapability = "ngx"
+	DriverCapabilityUtility  DriverCapability = "utility"
+	DriverCapabilityVideo    DriverCapability = "video"
+)
+
+var (
+	driverCapabilitiesNone = NewDriverCapabilities()
+	driverCapabilitiesAll  = NewDriverCapabilities("all")
+
+	// DefaultDriverCapabilities sets the value for driver capabilities if no value is set.
+	DefaultDriverCapabilities = NewDriverCapabilities("utility,compute")
+	// SupportedDriverCapabilities defines the set of all supported driver capabilities.
+	SupportedDriverCapabilities = NewDriverCapabilities("compute,compat32,graphics,utility,video,display,ngx")
+)
+
+// NewDriverCapabilities creates a set of driver capabilities from the specified capabilities
+func NewDriverCapabilities(capabilities ...string) DriverCapabilities {
+	dc := make(DriverCapabilities)
+	for _, capability := range capabilities {
+		for _, c := range strings.Split(capability, ",") {
+			trimmed := strings.TrimSpace(c)
+			if trimmed == "" {
+				continue
+			}
+			dc[DriverCapability(trimmed)] = true
+		}
+	}
+	return dc
+}
+
+// DriverCapabilities represents the NVIDIA_DRIVER_CAPABILITIES set for the specified image.
+type DriverCapabilities map[DriverCapability]bool
+
+// Has check whether the specified capability is selected.
+func (c DriverCapabilities) Has(capability DriverCapability) bool {
+	if c.IsAll() {
+		return true
+	}
+	return c[capability]
+}
+
+// Any checks whether any of the specified capabilities are set
+func (c DriverCapabilities) Any(capabilities ...DriverCapability) bool {
+	if c.IsAll() {
+		return true
+	}
+	for _, cap := range capabilities {
+		if c.Has(cap) {
+			return true
+		}
+	}
+	return false
+}
+
+// List returns the list of driver capabilities.
+// The list is sorted.
+func (c DriverCapabilities) List() []string {
+	var capabilities []string
+	for capability := range c {
+		capabilities = append(capabilities, string(capability))
+	}
+	sort.Strings(capabilities)
+	return capabilities
+}
+
+// String returns the string repesentation of the driver capabilities.
+func (c DriverCapabilities) String() string {
+	if c.IsAll() {
+		return "all"
+	}
+	return strings.Join(c.List(), ",")
+}
+
+// IsAll indicates whether the set of capabilities is `all`
+func (c DriverCapabilities) IsAll() bool {
+	return c[DriverCapabilityAll]
+}
+
+// Intersection returns a new set which includes the item in BOTH d and s2.
+// For example: d = {a1, a2} s2 = {a2, a3} s1.Intersection(s2) = {a2}
+func (c DriverCapabilities) Intersection(s2 DriverCapabilities) DriverCapabilities {
+	if s2.IsAll() {
+		return c
+	}
+	if c.IsAll() {
+		return s2
+	}
+
+	intersection := make(DriverCapabilities)
+	for capability := range s2 {
+		if c[capability] {
+			intersection[capability] = true
+		}
+	}
+
+	return intersection
+}
+
+// IsSuperset returns true if and only if d is a superset of s2.
+func (c DriverCapabilities) IsSuperset(s2 DriverCapabilities) bool {
+	if c.IsAll() {
+		return true
+	}
+
+	for capability := range s2 {
+		if !c[capability] {
+			return false
+		}
+	}
+
+	return true
+}

internal/config/image/capabilities_test.go

@@ -0,0 +1,134 @@
+/**
+# Copyright (c) 2021, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package image
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestDriverCapabilitiesIntersection(t *testing.T) {
+	testCases := []struct {
+		capabilities          DriverCapabilities
+		supportedCapabilities DriverCapabilities
+		expectedIntersection  DriverCapabilities
+	}{
+		{
+			capabilities:          driverCapabilitiesNone,
+			supportedCapabilities: driverCapabilitiesNone,
+			expectedIntersection:  driverCapabilitiesNone,
+		},
+		{
+			capabilities:          driverCapabilitiesAll,
+			supportedCapabilities: driverCapabilitiesNone,
+			expectedIntersection:  driverCapabilitiesNone,
+		},
+		{
+			capabilities:          driverCapabilitiesAll,
+			supportedCapabilities: SupportedDriverCapabilities,
+			expectedIntersection:  SupportedDriverCapabilities,
+		},
+		{
+			capabilities:          SupportedDriverCapabilities,
+			supportedCapabilities: driverCapabilitiesAll,
+			expectedIntersection:  SupportedDriverCapabilities,
+		},
+		{
+			capabilities:          driverCapabilitiesNone,
+			supportedCapabilities: driverCapabilitiesAll,
+			expectedIntersection:  driverCapabilitiesNone,
+		},
+		{
+			capabilities:          driverCapabilitiesNone,
+			supportedCapabilities: NewDriverCapabilities("cap1"),
+			expectedIntersection:  driverCapabilitiesNone,
+		},
+		{
+			capabilities:          NewDriverCapabilities("cap0,cap1"),
+			supportedCapabilities: NewDriverCapabilities("cap1,cap0"),
+			expectedIntersection:  NewDriverCapabilities("cap0,cap1"),
+		},
+		{
+			capabilities:          DefaultDriverCapabilities,
+			supportedCapabilities: SupportedDriverCapabilities,
+			expectedIntersection:  DefaultDriverCapabilities,
+		},
+		{
+			capabilities:          NewDriverCapabilities("compute,compat32,graphics,utility,video,display"),
+			supportedCapabilities: NewDriverCapabilities("compute,compat32,graphics,utility,video,display,ngx"),
+			expectedIntersection:  NewDriverCapabilities("compute,compat32,graphics,utility,video,display"),
+		},
+		{
+			capabilities:          NewDriverCapabilities("cap1"),
+			supportedCapabilities: driverCapabilitiesNone,
+			expectedIntersection:  driverCapabilitiesNone,
+		},
+		{
+			capabilities:          NewDriverCapabilities("compute,compat32,graphics,utility,video,display,ngx"),
+			supportedCapabilities: NewDriverCapabilities("compute,compat32,graphics,utility,video,display"),
+			expectedIntersection:  NewDriverCapabilities("compute,compat32,graphics,utility,video,display"),
+		},
+	}
+
+	for i, tc := range testCases {
+		t.Run(fmt.Sprintf("test case %d", i), func(t *testing.T) {
+			intersection := tc.supportedCapabilities.Intersection(tc.capabilities)
+			require.EqualValues(t, tc.expectedIntersection, intersection)
+		})
+	}
+}
+
+func TestDriverCapabilitiesList(t *testing.T) {
+	testCases := []struct {
+		capabilities DriverCapabilities
+		expected     []string
+	}{
+		{
+			capabilities: NewDriverCapabilities(""),
+		},
+		{
+			capabilities: NewDriverCapabilities("  "),
+		},
+		{
+			capabilities: NewDriverCapabilities(","),
+		},
+		{
+			capabilities: NewDriverCapabilities(",cap"),
+			expected:     []string{"cap"},
+		},
+		{
+			capabilities: NewDriverCapabilities("cap,"),
+			expected:     []string{"cap"},
+		},
+		{
+			capabilities: NewDriverCapabilities("cap0,,cap1"),
+			expected:     []string{"cap0", "cap1"},
+		},
+		{
+			capabilities: NewDriverCapabilities("cap1,cap0,cap3"),
+			expected:     []string{"cap0", "cap1", "cap3"},
+		},
+	}
+
+	for i, tc := range testCases {
+		t.Run(fmt.Sprintf("test case %d", i), func(t *testing.T) {
+			require.EqualValues(t, tc.expected, tc.capabilities.List())
+		})
+	}
+}

internal/config/image/cuda_image.go

@@ -0,0 +1,276 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package image
+
+import (
+	"fmt"
+	"path/filepath"
+	"strconv"
+	"strings"
+
+	"github.com/opencontainers/runtime-spec/specs-go"
+	"golang.org/x/mod/semver"
+	"tags.cncf.io/container-device-interface/pkg/parser"
+)
+
+const (
+	envCUDAVersion          = "CUDA_VERSION"
+	envNVRequirePrefix      = "NVIDIA_REQUIRE_"
+	envNVRequireCUDA        = envNVRequirePrefix + "CUDA"
+	envNVRequireJetpack     = envNVRequirePrefix + "JETPACK"
+	envNVDisableRequire     = "NVIDIA_DISABLE_REQUIRE"
+	envNVDriverCapabilities = "NVIDIA_DRIVER_CAPABILITIES"
+)
+
+// CUDA represents a CUDA image that can be used for GPU computing. This wraps
+// a map of environment variable to values that can be used to perform lookups
+// such as requirements.
+type CUDA struct {
+	env    map[string]string
+	mounts []specs.Mount
+}
+
+// NewCUDAImageFromSpec creates a CUDA image from the input OCI runtime spec.
+// The process environment is read (if present) to construc the CUDA Image.
+func NewCUDAImageFromSpec(spec *specs.Spec) (CUDA, error) {
+	var env []string
+	if spec != nil && spec.Process != nil {
+		env = spec.Process.Env
+	}
+
+	return New(
+		WithEnv(env),
+		WithMounts(spec.Mounts),
+	)
+}
+
+// NewCUDAImageFromEnv creates a CUDA image from the input environment. The environment
+// is a list of strings of the form ENVAR=VALUE.
+func NewCUDAImageFromEnv(env []string) (CUDA, error) {
+	return New(WithEnv(env))
+}
+
+// Getenv returns the value of the specified environment variable.
+// If the environment variable is not specified, an empty string is returned.
+func (i CUDA) Getenv(key string) string {
+	return i.env[key]
+}
+
+// HasEnvvar checks whether the specified envvar is defined in the image.
+func (i CUDA) HasEnvvar(key string) bool {
+	_, exists := i.env[key]
+	return exists
+}
+
+// IsLegacy returns whether the associated CUDA image is a "legacy" image. An
+// image is considered legacy if it has a CUDA_VERSION environment variable defined
+// and no NVIDIA_REQUIRE_CUDA environment variable defined.
+func (i CUDA) IsLegacy() bool {
+	legacyCudaVersion := i.env[envCUDAVersion]
+	cudaRequire := i.env[envNVRequireCUDA]
+	return len(legacyCudaVersion) > 0 && len(cudaRequire) == 0
+}
+
+// GetRequirements returns the requirements from all NVIDIA_REQUIRE_ environment
+// variables.
+func (i CUDA) GetRequirements() ([]string, error) {
+	if i.HasDisableRequire() {
+		return nil, nil
+	}
+
+	// All variables with the "NVIDIA_REQUIRE_" prefix are passed to nvidia-container-cli
+	var requirements []string
+	for name, value := range i.env {
+		if strings.HasPrefix(name, envNVRequirePrefix) && !strings.HasPrefix(name, envNVRequireJetpack) {
+			requirements = append(requirements, value)
+		}
+	}
+	if i.IsLegacy() {
+		v, err := i.legacyVersion()
+		if err != nil {
+			return nil, fmt.Errorf("failed to get version: %v", err)
+		}
+		cudaRequire := fmt.Sprintf("cuda>=%s", v)
+		requirements = append(requirements, cudaRequire)
+	}
+	return requirements, nil
+}
+
+// HasDisableRequire checks for the value of the NVIDIA_DISABLE_REQUIRE. If set
+// to a valid (true) boolean value this can be used to disable the requirement checks
+func (i CUDA) HasDisableRequire() bool {
+	if disable, exists := i.env[envNVDisableRequire]; exists {
+		// i.logger.Debugf("NVIDIA_DISABLE_REQUIRE=%v; skipping requirement checks", disable)
+		d, _ := strconv.ParseBool(disable)
+		return d
+	}
+
+	return false
+}
+
+// DevicesFromEnvvars returns the devices requested by the image through environment variables
+func (i CUDA) DevicesFromEnvvars(envVars ...string) VisibleDevices {
+	// We concantenate all the devices from the specified env.
+	var isSet bool
+	var devices []string
+	requested := make(map[string]bool)
+	for _, envVar := range envVars {
+		if devs, ok := i.env[envVar]; ok {
+			isSet = true
+			for _, d := range strings.Split(devs, ",") {
+				trimmed := strings.TrimSpace(d)
+				if len(trimmed) == 0 {
+					continue
+				}
+				devices = append(devices, trimmed)
+				requested[trimmed] = true
+			}
+		}
+	}
+
+	// Environment variable unset with legacy image: default to "all".
+	if !isSet && len(devices) == 0 && i.IsLegacy() {
+		return NewVisibleDevices("all")
+	}
+
+	// Environment variable unset or empty or "void": return nil
+	if len(devices) == 0 || requested["void"] {
+		return NewVisibleDevices("void")
+	}
+
+	return NewVisibleDevices(devices...)
+}
+
+// GetDriverCapabilities returns the requested driver capabilities.
+func (i CUDA) GetDriverCapabilities() DriverCapabilities {
+	env := i.env[envNVDriverCapabilities]
+
+	capabilities := make(DriverCapabilities)
+	for _, c := range strings.Split(env, ",") {
+		capabilities[DriverCapability(c)] = true
+	}
+
+	return capabilities
+}
+
+func (i CUDA) legacyVersion() (string, error) {
+	cudaVersion := i.env[envCUDAVersion]
+	majorMinor, err := parseMajorMinorVersion(cudaVersion)
+	if err != nil {
+		return "", fmt.Errorf("invalid CUDA version %v: %v", cudaVersion, err)
+	}
+
+	return majorMinor, nil
+}
+
+func parseMajorMinorVersion(version string) (string, error) {
+	vVersion := "v" + strings.TrimPrefix(version, "v")
+
+	if !semver.IsValid(vVersion) {
+		return "", fmt.Errorf("invalid version string")
+	}
+
+	majorMinor := strings.TrimPrefix(semver.MajorMinor(vVersion), "v")
+	parts := strings.Split(majorMinor, ".")
+
+	var err error
+	_, err = strconv.ParseUint(parts[0], 10, 32)
+	if err != nil {
+		return "", fmt.Errorf("invalid major version")
+	}
+	_, err = strconv.ParseUint(parts[1], 10, 32)
+	if err != nil {
+		return "", fmt.Errorf("invalid minor version")
+	}
+	return majorMinor, nil
+}
+
+// OnlyFullyQualifiedCDIDevices returns true if all devices requested in the image are requested as CDI devices/
+func (i CUDA) OnlyFullyQualifiedCDIDevices() bool {
+	var hasCDIdevice bool
+	for _, device := range i.DevicesFromEnvvars("NVIDIA_VISIBLE_DEVICES").List() {
+		if !parser.IsQualifiedName(device) {
+			return false
+		}
+		hasCDIdevice = true
+	}
+
+	for _, device := range i.DevicesFromMounts() {
+		if !strings.HasPrefix(device, "cdi/") {
+			return false
+		}
+		hasCDIdevice = true
+	}
+	return hasCDIdevice
+}
+
+const (
+	deviceListAsVolumeMountsRoot = "/var/run/nvidia-container-devices"
+)
+
+// DevicesFromMounts returns a list of device specified as mounts.
+// TODO: This should be merged with getDevicesFromMounts used in the NVIDIA Container Runtime
+func (i CUDA) DevicesFromMounts() []string {
+	root := filepath.Clean(deviceListAsVolumeMountsRoot)
+	seen := make(map[string]bool)
+	var devices []string
+	for _, m := range i.mounts {
+		source := filepath.Clean(m.Source)
+		// Only consider mounts who's host volume is /dev/null
+		if source != "/dev/null" {
+			continue
+		}
+
+		destination := filepath.Clean(m.Destination)
+		if seen[destination] {
+			continue
+		}
+		seen[destination] = true
+
+		// Only consider container mount points that begin with 'root'
+		if !strings.HasPrefix(destination, root) {
+			continue
+		}
+
+		// Grab the full path beyond 'root' and add it to the list of devices
+		device := strings.Trim(strings.TrimPrefix(destination, root), "/")
+		if len(device) == 0 {
+			continue
+		}
+		devices = append(devices, device)
+	}
+	return devices
+}
+
+// CDIDevicesFromMounts returns a list of CDI devices specified as mounts on the image.
+func (i CUDA) CDIDevicesFromMounts() []string {
+	var devices []string
+	for _, mountDevice := range i.DevicesFromMounts() {
+		if !strings.HasPrefix(mountDevice, "cdi/") {
+			continue
+		}
+		parts := strings.SplitN(strings.TrimPrefix(mountDevice, "cdi/"), "/", 3)
+		if len(parts) != 3 {
+			continue
+		}
+		vendor := parts[0]
+		class := parts[1]
+		device := parts[2]
+		devices = append(devices, fmt.Sprintf("%s/%s=%s", vendor, class, device))
+	}
+	return devices
+}

internal/config/image/cuda_image_test.go

@@ -0,0 +1,132 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package image
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestParseMajorMinorVersionValid(t *testing.T) {
+	var tests = []struct {
+		version  string
+		expected string
+	}{
+		{"0", "0.0"},
+		{"8", "8.0"},
+		{"7.5", "7.5"},
+		{"9.0.116", "9.0"},
+		{"4294967295.4294967295.4294967295", "4294967295.4294967295"},
+		{"v11.6", "11.6"},
+	}
+	for _, c := range tests {
+		t.Run(c.version, func(t *testing.T) {
+			version, err := parseMajorMinorVersion(c.version)
+
+			require.NoError(t, err)
+			require.Equal(t, c.expected, version)
+		})
+	}
+}
+
+func TestParseMajorMinorVersionInvalid(t *testing.T) {
+	var tests = []string{
+		"foo",
+		"foo.5.10",
+		"9.0.116.50",
+		"9.0.116foo",
+		"7.foo",
+		"9.0.bar",
+		"9.4294967296",
+		"9.0.116.",
+		"9..0",
+		"9.",
+		".5.10",
+		"-9",
+		"+9",
+		"-9.1.116",
+		"-9.-1.-116",
+	}
+	for _, c := range tests {
+		t.Run(c, func(t *testing.T) {
+			_, err := parseMajorMinorVersion(c)
+			require.Error(t, err)
+		})
+	}
+}
+
+func TestGetRequirements(t *testing.T) {
+	testCases := []struct {
+		description  string
+		env          []string
+		requirements []string
+	}{
+		{
+			description:  "NVIDIA_REQUIRE_JETPACK is ignored",
+			env:          []string{"NVIDIA_REQUIRE_JETPACK=csv-mounts=all"},
+			requirements: nil,
+		},
+		{
+			description:  "NVIDIA_REQUIRE_JETPACK_HOST_MOUNTS is ignored",
+			env:          []string{"NVIDIA_REQUIRE_JETPACK_HOST_MOUNTS=base-only"},
+			requirements: nil,
+		},
+		{
+			description:  "single requirement set",
+			env:          []string{"NVIDIA_REQUIRE_CUDA=cuda>=11.6"},
+			requirements: []string{"cuda>=11.6"},
+		},
+		{
+			description:  "requirements are concatenated requirement set",
+			env:          []string{"NVIDIA_REQUIRE_CUDA=cuda>=11.6", "NVIDIA_REQUIRE_BRAND=brand=tesla"},
+			requirements: []string{"cuda>=11.6", "brand=tesla"},
+		},
+		{
+			description:  "legacy image",
+			env:          []string{"CUDA_VERSION=11.6"},
+			requirements: []string{"cuda>=11.6"},
+		},
+		{
+			description:  "legacy image with additional requirement",
+			env:          []string{"CUDA_VERSION=11.6", "NVIDIA_REQUIRE_BRAND=brand=tesla"},
+			requirements: []string{"cuda>=11.6", "brand=tesla"},
+		},
+		{
+			description:  "NVIDIA_DISABLE_REQUIRE ignores requirements",
+			env:          []string{"NVIDIA_REQUIRE_CUDA=cuda>=11.6", "NVIDIA_REQUIRE_BRAND=brand=tesla", "NVIDIA_DISABLE_REQUIRE=true"},
+			requirements: []string{},
+		},
+		{
+			description:  "NVIDIA_DISABLE_REQUIRE ignores legacy image requirements",
+			env:          []string{"CUDA_VERSION=11.6", "NVIDIA_REQUIRE_BRAND=brand=tesla", "NVIDIA_DISABLE_REQUIRE=true"},
+			requirements: []string{},
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.description, func(t *testing.T) {
+			image, err := NewCUDAImageFromEnv(tc.env)
+			require.NoError(t, err)
+
+			requirements, err := image.GetRequirements()
+			require.NoError(t, err)
+			require.ElementsMatch(t, tc.requirements, requirements)
+		})
+
+	}
+}

internal/config/image/devices.go

@@ -0,0 +1,127 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package image
+
+import (
+	"strings"
+)
+
+// VisibleDevices represents the devices selected in a container image
+// through the NVIDIA_VISIBLE_DEVICES or other environment variables
+type VisibleDevices interface {
+	List() []string
+	Has(string) bool
+}
+
+var _ VisibleDevices = (*all)(nil)
+var _ VisibleDevices = (*none)(nil)
+var _ VisibleDevices = (*void)(nil)
+var _ VisibleDevices = (*devices)(nil)
+
+// NewVisibleDevices creates a VisibleDevices based on the value of the specified envvar.
+func NewVisibleDevices(envvars ...string) VisibleDevices {
+	for _, envvar := range envvars {
+		if envvar == "all" {
+			return all{}
+		}
+		if envvar == "none" {
+			return none{}
+		}
+		if envvar == "" || envvar == "void" {
+			return void{}
+		}
+	}
+
+	return newDevices(envvars...)
+}
+
+type all struct{}
+
+// List returns ["all"] for all devices
+func (a all) List() []string {
+	return []string{"all"}
+}
+
+// Has for all devices is true for any id except the empty ID
+func (a all) Has(id string) bool {
+	return id != ""
+}
+
+type none struct{}
+
+// List returns [""] for the none devices
+func (n none) List() []string {
+	return []string{""}
+}
+
+// Has for none devices is false for any id
+func (n none) Has(id string) bool {
+	return false
+}
+
+type void struct {
+	none
+}
+
+// List returns nil for the void devices
+func (v void) List() []string {
+	return nil
+}
+
+type devices struct {
+	len    int
+	lookup map[string]int
+}
+
+func newDevices(idOrCommaSeparated ...string) devices {
+	lookup := make(map[string]int)
+
+	i := 0
+	for _, commaSeparated := range idOrCommaSeparated {
+		for _, id := range strings.Split(commaSeparated, ",") {
+			lookup[id] = i
+			i++
+		}
+	}
+
+	d := devices{
+		len:    i,
+		lookup: lookup,
+	}
+	return d
+}
+
+// List returns the list of requested devices
+func (d devices) List() []string {
+	list := make([]string, d.len)
+
+	for id, i := range d.lookup {
+		list[i] = id
+	}
+
+	return list
+}
+
+// Has checks whether the specified ID is in the set of requested devices
+func (d devices) Has(id string) bool {
+	if id == "" {
+		return false
+	}
+
+	_, exist := d.lookup[id]
+	return exist
+}

internal/config/image/privileged.go

@@ -0,0 +1,43 @@
+/**
+# Copyright (c) NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package image
+
+import (
+	"github.com/opencontainers/runtime-spec/specs-go"
+)
+
+const (
+	capSysAdmin = "CAP_SYS_ADMIN"
+)
+
+// IsPrivileged returns true if the container is a privileged container.
+func IsPrivileged(s *specs.Spec) bool {
+	if s.Process.Capabilities == nil {
+		return false
+	}
+
+	// We only make sure that the bounding capabibility set has
+	// CAP_SYS_ADMIN. This allows us to make sure that the container was
+	// actually started as '--privileged', but also allow non-root users to
+	// access the privileged NVIDIA capabilities.
+	for _, c := range s.Process.Capabilities.Bounding {
+		if c == capSysAdmin {
+			return true
+		}
+	}
+	return false
+}

internal/config/runtime.go

@@ -0,0 +1,57 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package config
+
+// RuntimeConfig stores the config options for the NVIDIA Container Runtime
+type RuntimeConfig struct {
+	DebugFilePath string `toml:"debug"`
+	// LogLevel defines the logging level for the application
+	LogLevel string `toml:"log-level"`
+	// Runtimes defines the candidates for the low-level runtime
+	Runtimes []string    `toml:"runtimes"`
+	Mode     string      `toml:"mode"`
+	Modes    modesConfig `toml:"modes"`
+}
+
+// modesConfig defines (optional) per-mode configs
+type modesConfig struct {
+	CSV csvModeConfig `toml:"csv"`
+	CDI cdiModeConfig `toml:"cdi"`
+}
+
+type cdiModeConfig struct {
+	// SpecDirs allows for the default spec dirs for CDI to be overridden
+	SpecDirs []string `toml:"spec-dirs"`
+	// DefaultKind sets the default kind to be used when constructing fully-qualified CDI device names
+	DefaultKind string `toml:"default-kind"`
+	// AnnotationPrefixes sets the allowed prefixes for CDI annotation-based device injection
+	AnnotationPrefixes []string `toml:"annotation-prefixes"`
+}
+
+type csvModeConfig struct {
+	MountSpecPath string `toml:"mount-spec-path"`
+}
+
+// GetDefaultRuntimeConfig defines the default values for the config
+func GetDefaultRuntimeConfig() (*RuntimeConfig, error) {
+	cfg, err := GetDefault()
+	if err != nil {
+		return nil, err
+	}
+
+	return &cfg.NVIDIAContainerRuntimeConfig, nil
+}

internal/config/toml.go

@@ -0,0 +1,215 @@
+/**
+# Copyright (c) NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package config
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"os"
+	"regexp"
+
+	"github.com/pelletier/go-toml"
+)
+
+// Toml is a type for the TOML representation of a config.
+type Toml toml.Tree
+
+type options struct {
+	configFile string
+	required   bool
+}
+
+// Option is a functional option for loading TOML config files.
+type Option func(*options)
+
+// WithConfigFile sets the config file option.
+func WithConfigFile(configFile string) Option {
+	return func(o *options) {
+		o.configFile = configFile
+	}
+}
+
+// WithRequired sets the required option.
+// If this is set to true, a failure to open the specified file is treated as an error
+func WithRequired(required bool) Option {
+	return func(o *options) {
+		o.required = required
+	}
+}
+
+// New creates a new toml tree based on the provided options
+func New(opts ...Option) (*Toml, error) {
+	o := &options{}
+	for _, opt := range opts {
+		opt(o)
+	}
+
+	return o.loadConfigToml()
+}
+
+func (o options) loadConfigToml() (*Toml, error) {
+	filename := o.configFile
+	if filename == "" {
+		return defaultToml()
+	}
+
+	_, err := os.Stat(filename)
+	if os.IsNotExist(err) && o.required {
+		return nil, os.ErrNotExist
+	}
+
+	tomlFile, err := os.Open(filename)
+	if os.IsNotExist(err) {
+		return defaultToml()
+	} else if err != nil {
+		return nil, fmt.Errorf("failed to load specified config file: %w", err)
+	}
+	defer tomlFile.Close()
+
+	return loadConfigTomlFrom(tomlFile)
+
+}
+
+func defaultToml() (*Toml, error) {
+	cfg, err := GetDefault()
+	if err != nil {
+		return nil, err
+	}
+	contents, err := toml.Marshal(cfg)
+	if err != nil {
+		return nil, err
+	}
+
+	return loadConfigTomlFrom(bytes.NewReader(contents))
+}
+
+func loadConfigTomlFrom(reader io.Reader) (*Toml, error) {
+	tree, err := toml.LoadReader(reader)
+	if err != nil {
+		return nil, err
+	}
+	return (*Toml)(tree), nil
+}
+
+// Config returns the typed config associated with the toml tree.
+func (t *Toml) Config() (*Config, error) {
+	cfg, err := GetDefault()
+	if err != nil {
+		return nil, err
+	}
+	if t == nil {
+		return cfg, nil
+	}
+	if err := t.Unmarshal(cfg); err != nil {
+		return nil, fmt.Errorf("failed to unmarshal config: %v", err)
+	}
+	return cfg, nil
+}
+
+// Unmarshal wraps the toml.Tree Unmarshal function.
+func (t *Toml) Unmarshal(v interface{}) error {
+	return (*toml.Tree)(t).Unmarshal(v)
+}
+
+// Save saves the config to the specified Writer.
+func (t *Toml) Save(w io.Writer) (int64, error) {
+	contents, err := t.contents()
+	if err != nil {
+		return 0, err
+	}
+
+	n, err := w.Write(contents)
+	return int64(n), err
+}
+
+// contents returns the config TOML as a byte slice.
+// Any required formatting is applied.
+func (t Toml) contents() ([]byte, error) {
+	commented := t.commentDefaults()
+
+	buffer := bytes.NewBuffer(nil)
+
+	enc := toml.NewEncoder(buffer).Indentation("")
+	if err := enc.Encode((*toml.Tree)(commented)); err != nil {
+		return nil, fmt.Errorf("invalid config: %v", err)
+	}
+	return t.format(buffer.Bytes())
+}
+
+// format fixes the comments for the config to ensure that they start in column
+// 1 and are not followed by a space.
+func (t Toml) format(contents []byte) ([]byte, error) {
+	r := regexp.MustCompile(`(\n*)\s*?#\s*(\S.*)`)
+	replaced := r.ReplaceAll(contents, []byte("$1#$2"))
+
+	return replaced, nil
+}
+
+// Delete deletes the specified key from the TOML config.
+func (t *Toml) Delete(key string) error {
+	return (*toml.Tree)(t).Delete(key)
+}
+
+// Get returns the value for the specified key.
+func (t *Toml) Get(key string) interface{} {
+	return (*toml.Tree)(t).Get(key)
+}
+
+// Set sets the specified key to the specified value in the TOML config.
+func (t *Toml) Set(key string, value interface{}) {
+	(*toml.Tree)(t).Set(key, value)
+}
+
+// commentDefaults applies the required comments for default values to the Toml.
+func (t *Toml) commentDefaults() *Toml {
+	asToml := (*toml.Tree)(t)
+	commentedDefaults := map[string]interface{}{
+		"swarm-resource": "DOCKER_RESOURCE_GPU",
+		"accept-nvidia-visible-devices-envvar-when-unprivileged": true,
+		"accept-nvidia-visible-devices-as-volume-mounts":         false,
+		"nvidia-container-cli.root":                              "/run/nvidia/driver",
+		"nvidia-container-cli.path":                              "/usr/bin/nvidia-container-cli",
+		"nvidia-container-cli.debug":                             "/var/log/nvidia-container-toolkit.log",
+		"nvidia-container-cli.ldcache":                           "/etc/ld.so.cache",
+		"nvidia-container-cli.no-cgroups":                        false,
+		"nvidia-container-cli.user":                              "root:video",
+		"nvidia-container-runtime.debug":                         "/var/log/nvidia-container-runtime.log",
+	}
+	for k, v := range commentedDefaults {
+		set := asToml.Get(k)
+		if !shouldComment(k, v, set) {
+			continue
+		}
+		asToml.SetWithComment(k, "", true, v)
+	}
+	return (*Toml)(asToml)
+}
+
+func shouldComment(key string, defaultValue interface{}, setTo interface{}) bool {
+	if key == "nvidia-container-cli.user" && !getCommentedUserGroup() {
+		return false
+	}
+	if key == "nvidia-container-runtime.debug" && setTo == "/dev/null" {
+		return true
+	}
+	if setTo == nil || defaultValue == setTo || setTo == "" {
+		return true
+	}
+
+	return false
+}

internal/config/toml_test.go

@@ -0,0 +1,248 @@
+/**
+# Copyright (c) NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package config
+
+import (
+	"bytes"
+	"strings"
+	"testing"
+
+	"github.com/pelletier/go-toml"
+	"github.com/stretchr/testify/require"
+)
+
+func TestTomlSave(t *testing.T) {
+	testCases := []struct {
+		description string
+		config      *Toml
+		expected    string
+	}{
+		{
+			description: "defaultConfig",
+			config: func() *Toml {
+				t, _ := defaultToml()
+				// TODO: We handle the ldconfig path specifically, since this is platform
+				// dependent.
+				(*toml.Tree)(t).Set("nvidia-container-cli.ldconfig", "OVERRIDDEN")
+				return t
+			}(),
+			expected: `
+#accept-nvidia-visible-devices-as-volume-mounts = false
+#accept-nvidia-visible-devices-envvar-when-unprivileged = true
+disable-require = false
+supported-driver-capabilities = "compat32,compute,display,graphics,ngx,utility,video"
+#swarm-resource = "DOCKER_RESOURCE_GPU"
+
+[nvidia-container-cli]
+#debug = "/var/log/nvidia-container-toolkit.log"
+environment = []
+#ldcache = "/etc/ld.so.cache"
+ldconfig = "OVERRIDDEN"
+load-kmods = true
+#no-cgroups = false
+#path = "/usr/bin/nvidia-container-cli"
+#root = "/run/nvidia/driver"
+#user = "root:video"
+
+[nvidia-container-runtime]
+#debug = "/var/log/nvidia-container-runtime.log"
+log-level = "info"
+mode = "auto"
+runtimes = ["docker-runc", "runc"]
+
+[nvidia-container-runtime.modes]
+
+[nvidia-container-runtime.modes.cdi]
+annotation-prefixes = ["cdi.k8s.io/"]
+default-kind = "nvidia.com/gpu"
+spec-dirs = ["/etc/cdi", "/var/run/cdi"]
+
+[nvidia-container-runtime.modes.csv]
+mount-spec-path = "/etc/nvidia-container-runtime/host-files-for-container.d"
+
+[nvidia-container-runtime-hook]
+path = "nvidia-container-runtime-hook"
+skip-mode-detection = false
+
+[nvidia-ctk]
+path = "nvidia-ctk"
+`,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.description, func(t *testing.T) {
+			buffer := new(bytes.Buffer)
+			_, err := tc.config.Save(buffer)
+			require.NoError(t, err)
+
+			require.EqualValues(t,
+				strings.TrimSpace(tc.expected),
+				strings.TrimSpace(buffer.String()),
+			)
+		})
+	}
+}
+
+func TestFormat(t *testing.T) {
+	testCases := []struct {
+		input    string
+		expected string
+	}{
+		{
+			input:    "# comment",
+			expected: "#comment",
+		},
+		{
+			input:    " #comment",
+			expected: "#comment",
+		},
+		{
+			input:    " # comment",
+			expected: "#comment",
+		},
+		{
+			input: strings.Join([]string{
+				"some",
+				"# comment",
+				" # comment",
+				" #comment",
+				"other"}, "\n"),
+			expected: strings.Join([]string{
+				"some",
+				"#comment",
+				"#comment",
+				"#comment",
+				"other"}, "\n"),
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.input, func(t *testing.T) {
+			actual, _ := (Toml{}).format([]byte(tc.input))
+			require.Equal(t, tc.expected, string(actual))
+		})
+	}
+}
+
+func TestGetFormattedConfig(t *testing.T) {
+	expectedLines := []string{
+		"#no-cgroups = false",
+		"#debug = \"/var/log/nvidia-container-toolkit.log\"",
+		"#debug = \"/var/log/nvidia-container-runtime.log\"",
+	}
+
+	contents, err := createEmpty().contents()
+	require.NoError(t, err)
+	lines := strings.Split(string(contents), "\n")
+
+	for _, line := range expectedLines {
+		require.Contains(t, lines, line)
+	}
+}
+
+func TestTomlContents(t *testing.T) {
+	testCases := []struct {
+		description string
+		contents    map[string]interface{}
+		expected    string
+	}{
+		{
+			description: "empty config returns commented defaults",
+			expected: `
+#accept-nvidia-visible-devices-as-volume-mounts = false
+#accept-nvidia-visible-devices-envvar-when-unprivileged = true
+#swarm-resource = "DOCKER_RESOURCE_GPU"
+
+[nvidia-container-cli]
+#debug = "/var/log/nvidia-container-toolkit.log"
+#ldcache = "/etc/ld.so.cache"
+#no-cgroups = false
+#path = "/usr/bin/nvidia-container-cli"
+#root = "/run/nvidia/driver"
+#user = "root:video"
+
+[nvidia-container-runtime]
+#debug = "/var/log/nvidia-container-runtime.log"`,
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.description, func(t *testing.T) {
+			tree, err := toml.TreeFromMap(tc.contents)
+			require.NoError(t, err)
+			cfg := (*Toml)(tree)
+			contents, err := cfg.contents()
+			require.NoError(t, err)
+
+			require.EqualValues(t,
+				strings.TrimSpace(tc.expected),
+				strings.TrimSpace(string(contents)),
+			)
+		})
+	}
+}
+
+func TestConfigFromToml(t *testing.T) {
+	testCases := []struct {
+		description    string
+		contents       map[string]interface{}
+		expectedConfig *Config
+	}{
+		{
+			description: "empty config returns default config",
+			contents:    nil,
+			expectedConfig: func() *Config {
+				c, _ := GetDefault()
+				return c
+			}(),
+		},
+		{
+			description: "contents overrides default",
+			contents: map[string]interface{}{
+				"nvidia-container-runtime": map[string]interface{}{
+					"debug": "/some/log/file.log",
+					"mode":  "csv",
+				},
+			},
+			expectedConfig: func() *Config {
+				c, _ := GetDefault()
+				c.NVIDIAContainerRuntimeConfig.DebugFilePath = "/some/log/file.log"
+				c.NVIDIAContainerRuntimeConfig.Mode = "csv"
+				return c
+			}(),
+		},
+	}
+
+	for _, tc := range testCases {
+		t.Run(tc.description, func(t *testing.T) {
+			tomlCfg := fromMap(tc.contents)
+			config, err := tomlCfg.Config()
+			require.NoError(t, err)
+			require.EqualValues(t, tc.expectedConfig, config)
+		})
+	}
+}
+
+func fromMap(c map[string]interface{}) *Toml {
+	tree, _ := toml.TreeFromMap(c)
+	return (*Toml)(tree)
+}
+
+func createEmpty() *Toml {
+	return fromMap(nil)
+}

internal/config/toolkit-cli.go

@@ -0,0 +1,22 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package config
+
+// CTKConfig stores the config options for the NVIDIA Container Toolkit CLI (nvidia-ctk)
+type CTKConfig struct {
+	Path string `toml:"path"`
+}

internal/cuda/cuda.go

@@ -0,0 +1,137 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package cuda
+
+import (
+	"fmt"
+
+	"github.com/NVIDIA/go-nvml/pkg/dl"
+)
+
+/*
+#cgo LDFLAGS: -Wl,--unresolved-symbols=ignore-in-object-files
+
+#ifdef _WIN32
+#define CUDAAPI __stdcall
+#else
+#define CUDAAPI
+#endif
+
+typedef int CUdevice;
+
+typedef enum CUdevice_attribute_enum {
+    CU_DEVICE_ATTRIBUTE_COMPUTE_CAPABILITY_MAJOR = 75,
+    CU_DEVICE_ATTRIBUTE_COMPUTE_CAPABILITY_MINOR = 76
+} CUdevice_attribute;
+
+typedef enum cudaError_enum {
+	CUDA_SUCCESS = 0
+} CUresult;
+
+CUresult CUDAAPI cuInit(unsigned int Flags);
+CUresult CUDAAPI cuDriverGetVersion(int *driverVersion);
+CUresult CUDAAPI cuDeviceGet(CUdevice *device, int ordinal);
+CUresult CUDAAPI cuDeviceGetAttribute(int *pi, CUdevice_attribute attrib, CUdevice dev);
+*/
+import "C"
+
+const (
+	libraryName      = "libcuda.so.1"
+	libraryLoadFlags = dl.RTLD_LAZY | dl.RTLD_GLOBAL
+)
+
+// cuda stores a reference the cuda dynamic library
+var lib *dl.DynamicLibrary
+
+// Version returns the CUDA version of the driver as a string or an error if this
+// cannot be determined.
+func Version() (string, error) {
+	lib, err := load()
+	if err != nil {
+		return "", err
+	}
+	defer lib.Close()
+
+	if err := lib.Lookup("cuDriverGetVersion"); err != nil {
+		return "", fmt.Errorf("failed to lookup symbol: %v", err)
+	}
+
+	var version C.int
+	if result := C.cuDriverGetVersion(&version); result != C.CUDA_SUCCESS {
+		return "", fmt.Errorf("failed to get CUDA version: result=%v", result)
+	}
+
+	major := version / 1000
+	minor := version % 100 / 10
+
+	return fmt.Sprintf("%d.%d", major, minor), nil
+}
+
+// ComputeCapability returns the CUDA compute capability of a device with the specified index as a string
+// or an error if this cannot be determined.
+func ComputeCapability(index int) (string, error) {
+	lib, err := load()
+	if err != nil {
+		return "", err
+	}
+	defer lib.Close()
+
+	if err := lib.Lookup("cuInit"); err != nil {
+		return "", fmt.Errorf("failed to lookup symbol: %v", err)
+	}
+	if err := lib.Lookup("cuDeviceGet"); err != nil {
+		return "", fmt.Errorf("failed to lookup symbol: %v", err)
+	}
+	if err := lib.Lookup("cuDeviceGetAttribute"); err != nil {
+		return "", fmt.Errorf("failed to lookup symbol: %v", err)
+	}
+
+	if result := C.cuInit(C.uint(0)); result != C.CUDA_SUCCESS {
+		return "", fmt.Errorf("failed to initialize CUDA: result=%v", result)
+	}
+
+	var device C.CUdevice
+	// NOTE: We only query the first device
+	if result := C.cuDeviceGet(&device, C.int(index)); result != C.CUDA_SUCCESS {
+		return "", fmt.Errorf("failed to get CUDA device %v: result=%v", 0, result)
+	}
+
+	var major C.int
+	if result := C.cuDeviceGetAttribute(&major, C.CU_DEVICE_ATTRIBUTE_COMPUTE_CAPABILITY_MAJOR, device); result != C.CUDA_SUCCESS {
+		return "", fmt.Errorf("failed to get CUDA compute capability major for device %v : result=%v", 0, result)
+	}
+
+	var minor C.int
+	if result := C.cuDeviceGetAttribute(&minor, C.CU_DEVICE_ATTRIBUTE_COMPUTE_CAPABILITY_MINOR, device); result != C.CUDA_SUCCESS {
+		return "", fmt.Errorf("failed to get CUDA compute capability minor for device %v: result=%v", 0, result)
+	}
+
+	return fmt.Sprintf("%d.%d", major, minor), nil
+}
+
+func load() (*dl.DynamicLibrary, error) {
+	lib := dl.New(libraryName, libraryLoadFlags)
+	if lib == nil {
+		return nil, fmt.Errorf("error instantiating DynamicLibrary for CUDA")
+	}
+	err := lib.Open()
+	if err != nil {
+		return nil, fmt.Errorf("error opening DynamicLibrary for CUDA: %v", err)
+	}
+
+	return lib, nil
+}

internal/discover/char_devices.go

@@ -0,0 +1,62 @@
+/**
+# Copyright (c) 2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package discover
+
+import (
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/lookup"
+)
+
+// charDevices is a discover for a list of character devices
+type charDevices mounts
+
+var _ Discover = (*charDevices)(nil)
+
+// NewCharDeviceDiscoverer creates a discoverer which locates the specified set of device nodes.
+func NewCharDeviceDiscoverer(logger logger.Interface, devRoot string, devices []string) Discover {
+	locator := lookup.NewCharDeviceLocator(
+		lookup.WithLogger(logger),
+		lookup.WithRoot(devRoot),
+	)
+
+	return (*charDevices)(newMounts(logger, locator, devRoot, devices))
+}
+
+// Mounts returns the discovered mounts for the charDevices.
+// Since this explicitly specifies a device list, the mounts are nil.
+func (d *charDevices) Mounts() ([]Mount, error) {
+	return nil, nil
+}
+
+// Devices returns the discovered devices for the charDevices.
+// Here the device nodes are first discovered as mounts and these are converted to devices.
+func (d *charDevices) Devices() ([]Device, error) {
+	devicesAsMounts, err := (*mounts)(d).Mounts()
+	if err != nil {
+		return nil, err
+	}
+	var devices []Device
+	for _, mount := range devicesAsMounts {
+		device := Device{
+			HostPath: mount.HostPath,
+			Path:     mount.Path,
+		}
+		devices = append(devices, device)
+	}
+
+	return devices, nil
+}

internal/discover/char_devices_test.go

@@ -0,0 +1,84 @@
+/**
+# Copyright (c) 2021, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+**/
+
+package discover
+
+import (
+	"fmt"
+	"testing"
+
+	testlog "github.com/sirupsen/logrus/hooks/test"
+	"github.com/stretchr/testify/require"
+
+	"github.com/NVIDIA/nvidia-container-toolkit/internal/lookup"
+)
+
+func TestCharDevices(t *testing.T) {
+	logger, logHook := testlog.NewNullLogger()
+
+	testCases := []struct {
+		description          string
+		input                *charDevices
+		expectedMounts       []Mount
+		expectedMountsError  error
+		expectedDevicesError error
+		expectedDevices      []Device
+	}{
+		{
+			description: "dev mounts are empty",
+			input: (*charDevices)(
+				&mounts{
+					lookup: &lookup.LocatorMock{
+						LocateFunc: func(string) ([]string, error) {
+							return []string{"located"}, nil
+						},
+					},
+					required: []string{"required"},
+				},
+			),
+			expectedDevices: []Device{{Path: "located", HostPath: "located"}},
+		},
+		{
+			description:          "dev devices returns error for nil lookup",
+			input:                &charDevices{},
+			expectedDevicesError: fmt.Errorf("no lookup defined"),
+		},
+	}
+
+	for _, tc := range testCases {
+		logHook.Reset()
+
+		t.Run(tc.description, func(t *testing.T) {
+			tc.input.logger = logger
+
+			mounts, err := tc.input.Mounts()
+			if tc.expectedMountsError != nil {
+				require.Error(t, err)
+			} else {
+				require.NoError(t, err)
+			}
+			require.ElementsMatch(t, tc.expectedMounts, mounts)
+
+			devices, err := tc.input.Devices()
+			if tc.expectedDevicesError != nil {
+				require.Error(t, err)
+			} else {
+				require.NoError(t, err)
+			}
+			require.ElementsMatch(t, tc.expectedDevices, devices)
+		})
+	}
+}

internal/discover/discover.go

@@ -0,0 +1,46 @@
+/*
+# Copyright (c) 2021-2022, NVIDIA CORPORATION.  All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+*/
+
+package discover
+
+// Device represents a discovered character device.
+type Device struct {
+	HostPath string
+	Path     string
+}
+
+// Mount represents a discovered mount.
+type Mount struct {
+	HostPath string
+	Path     string
+	Options  []string
+}
+
+// Hook represents a discovered hook.
+type Hook struct {
+	Lifecycle string
+	Path      string
+	Args      []string
+}
+
+// Discover defines an interface for discovering the devices, mounts, and hooks available on a system
+//
+//go:generate moq -stub -out discover_mock.go . Discover
+type Discover interface {
+	Devices() ([]Device, error)
+	Mounts() ([]Mount, error)
+	Hooks() ([]Hook, error)
+}

internal/discover/discover_mock.go

@@ -0,0 +1,153 @@
+// Code generated by moq; DO NOT EDIT.
+// github.com/matryer/moq
+
+package discover
+
+import (
+	"sync"
+)
+
+// Ensure, that DiscoverMock does implement Discover.
+// If this is not the case, regenerate this file with moq.
+var _ Discover = &DiscoverMock{}
+
+// DiscoverMock is a mock implementation of Discover.
+//
+//	func TestSomethingThatUsesDiscover(t *testing.T) {
+//
+//		// make and configure a mocked Discover
+//		mockedDiscover := &DiscoverMock{
+//			DevicesFunc: func() ([]Device, error) {
+//				panic("mock out the Devices method")
+//			},
+//			HooksFunc: func() ([]Hook, error) {
+//				panic("mock out the Hooks method")
+//			},
+//			MountsFunc: func() ([]Mount, error) {
+//				panic("mock out the Mounts method")
+//			},
+//		}
+//
+//		// use mockedDiscover in code that requires Discover
+//		// and then make assertions.
+//
+//	}
+type DiscoverMock struct {
+	// DevicesFunc mocks the Devices method.
+	DevicesFunc func() ([]Device, error)
+
+	// HooksFunc mocks the Hooks method.
+	HooksFunc func() ([]Hook, error)
+
+	// MountsFunc mocks the Mounts method.
+	MountsFunc func() ([]Mount, error)
+
+	// calls tracks calls to the methods.
+	calls struct {
+		// Devices holds details about calls to the Devices method.
+		Devices []struct {
+		}
+		// Hooks holds details about calls to the Hooks method.
+		Hooks []struct {
+		}
+		// Mounts holds details about calls to the Mounts method.
+		Mounts []struct {
+		}
+	}
+	lockDevices sync.RWMutex
+	lockHooks   sync.RWMutex
+	lockMounts  sync.RWMutex
+}
+
+// Devices calls DevicesFunc.
+func (mock *DiscoverMock) Devices() ([]Device, error) {
+	callInfo := struct {
+	}{}
+	mock.lockDevices.Lock()
+	mock.calls.Devices = append(mock.calls.Devices, callInfo)
+	mock.lockDevices.Unlock()
+	if mock.DevicesFunc == nil {
+		var (
+			devicesOut []Device
+			errOut     error
+		)
+		return devicesOut, errOut
+	}
+	return mock.DevicesFunc()
+}
+
+// DevicesCalls gets all the calls that were made to Devices.
+// Check the length with:
+//
+//	len(mockedDiscover.DevicesCalls())
+func (mock *DiscoverMock) DevicesCalls() []struct {
+} {
+	var calls []struct {
+	}
+	mock.lockDevices.RLock()
+	calls = mock.calls.Devices
+	mock.lockDevices.RUnlock()
+	return calls
+}
+
+// Hooks calls HooksFunc.
+func (mock *DiscoverMock) Hooks() ([]Hook, error) {
+	callInfo := struct {
+	}{}
+	mock.lockHooks.Lock()
+	mock.calls.Hooks = append(mock.calls.Hooks, callInfo)
+	mock.lockHooks.Unlock()
+	if mock.HooksFunc == nil {
+		var (
+			hooksOut []Hook
+			errOut   error
+		)
+		return hooksOut, errOut
+	}
+	return mock.HooksFunc()
+}
+
+// HooksCalls gets all the calls that were made to Hooks.
+// Check the length with:
+//
+//	len(mockedDiscover.HooksCalls())
+func (mock *DiscoverMock) HooksCalls() []struct {
+} {
+	var calls []struct {
+	}
+	mock.lockHooks.RLock()
+	calls = mock.calls.Hooks
+	mock.lockHooks.RUnlock()
+	return calls
+}
+
+// Mounts calls MountsFunc.
+func (mock *DiscoverMock) Mounts() ([]Mount, error) {
+	callInfo := struct {
+	}{}
+	mock.lockMounts.Lock()
+	mock.calls.Mounts = append(mock.calls.Mounts, callInfo)
+	mock.lockMounts.Unlock()
+	if mock.MountsFunc == nil {
+		var (
+			mountsOut []Mount
+			errOut    error
+		)
+		return mountsOut, errOut
+	}
+	return mock.MountsFunc()
+}
+
+// MountsCalls gets all the calls that were made to Mounts.
+// Check the length with:
+//
+//	len(mockedDiscover.MountsCalls())
+func (mock *DiscoverMock) MountsCalls() []struct {
+} {
+	var calls []struct {
+	}
+	mock.lockMounts.RLock()
+	calls = mock.calls.Mounts
+	mock.lockMounts.RUnlock()
+	return calls
+}