mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-25 13:35:00 +00:00
179d8655f9
This change creates an nvidia-cdi-hook binary for implementing CDI hooks. This allows for these hooks to be separated from the nvidia-ctk command which may, for example, require libnvidia-ml to support other functionality. The nvidia-ctk hook subcommand is maintained as an alias for the time being to allow for existing CDI specifications referring to this path to work as expected. Signed-off-by: Avi Deitcher <avi@deitcher.net>
125 lines
3.9 KiB
Go
125 lines
3.9 KiB
Go
/**
|
|
# 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 modifier
|
|
|
|
import (
|
|
"fmt"
|
|
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/config"
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/config/image"
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/cuda"
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/modifier/cdi"
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/oci"
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/platform-support/tegra/csv"
|
|
"github.com/NVIDIA/nvidia-container-toolkit/internal/requirements"
|
|
"github.com/NVIDIA/nvidia-container-toolkit/pkg/nvcdi"
|
|
)
|
|
|
|
const (
|
|
visibleDevicesEnvvar = "NVIDIA_VISIBLE_DEVICES"
|
|
visibleDevicesVoid = "void"
|
|
|
|
nvidiaRequireJetpackEnvvar = "NVIDIA_REQUIRE_JETPACK"
|
|
)
|
|
|
|
// NewCSVModifier creates a modifier that applies modications to an OCI spec if required by the runtime wrapper.
|
|
// The modifications are defined by CSV MountSpecs.
|
|
func NewCSVModifier(logger logger.Interface, cfg *config.Config, image image.CUDA) (oci.SpecModifier, error) {
|
|
if devices := image.DevicesFromEnvvars(visibleDevicesEnvvar); len(devices.List()) == 0 {
|
|
logger.Infof("No modification required; no devices requested")
|
|
return nil, nil
|
|
}
|
|
logger.Infof("Constructing modifier from config: %+v", *cfg)
|
|
|
|
if err := checkRequirements(logger, image); err != nil {
|
|
return nil, fmt.Errorf("requirements not met: %v", err)
|
|
}
|
|
|
|
csvFiles, err := csv.GetFileList(cfg.NVIDIAContainerRuntimeConfig.Modes.CSV.MountSpecPath)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to get list of CSV files: %v", err)
|
|
}
|
|
|
|
if image.Getenv(nvidiaRequireJetpackEnvvar) != "csv-mounts=all" {
|
|
csvFiles = csv.BaseFilesOnly(csvFiles)
|
|
}
|
|
|
|
cdilib, err := nvcdi.New(
|
|
nvcdi.WithLogger(logger),
|
|
nvcdi.WithDriverRoot(cfg.NVIDIAContainerCLIConfig.Root),
|
|
nvcdi.WithNVIDIACDIHookPath(cfg.NVIDIACTKConfig.Path),
|
|
nvcdi.WithMode(nvcdi.ModeCSV),
|
|
nvcdi.WithCSVFiles(csvFiles),
|
|
)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to construct CDI library: %v", err)
|
|
}
|
|
|
|
spec, err := cdilib.GetSpec()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to get CDI spec: %v", err)
|
|
}
|
|
|
|
cdiModifier, err := cdi.New(
|
|
cdi.WithLogger(logger),
|
|
cdi.WithSpec(spec.Raw()),
|
|
)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to construct CDI modifier: %v", err)
|
|
}
|
|
|
|
modifiers := Merge(
|
|
nvidiaContainerRuntimeHookRemover{logger},
|
|
cdiModifier,
|
|
)
|
|
|
|
return modifiers, nil
|
|
}
|
|
|
|
func checkRequirements(logger logger.Interface, image image.CUDA) error {
|
|
if image.HasDisableRequire() {
|
|
// TODO: We could print the real value here instead
|
|
logger.Debugf("NVIDIA_DISABLE_REQUIRE=%v; skipping requirement checks", true)
|
|
return nil
|
|
}
|
|
|
|
imageRequirements, err := image.GetRequirements()
|
|
if err != nil {
|
|
// TODO: Should we treat this as a failure, or just issue a warning?
|
|
return fmt.Errorf("failed to get image requirements: %v", err)
|
|
}
|
|
|
|
r := requirements.New(logger, imageRequirements)
|
|
|
|
cudaVersion, err := cuda.Version()
|
|
if err != nil {
|
|
logger.Warningf("Failed to get CUDA version: %v", err)
|
|
} else {
|
|
r.AddVersionProperty(requirements.CUDA, cudaVersion)
|
|
}
|
|
|
|
compteCapability, err := cuda.ComputeCapability(0)
|
|
if err != nil {
|
|
logger.Warningf("Failed to get CUDA Compute Capability: %v", err)
|
|
} else {
|
|
r.AddVersionProperty(requirements.ARCH, compteCapability)
|
|
}
|
|
|
|
return r.Assert()
|
|
}
|