mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-25 21:39:10 +00:00
75 lines
2.1 KiB
Go
75 lines
2.1 KiB
Go
/*
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# Copyright (c) 2021, NVIDIA CORPORATION. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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*/
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package main
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import (
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"fmt"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/oci"
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)
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const (
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ociSpecFileName = "config.json"
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dockerRuncExecutableName = "docker-runc"
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runcExecutableName = "runc"
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)
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// newRuntime is a factory method that constructs a runtime based on the selected configuration.
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func newRuntime(argv []string) (oci.Runtime, error) {
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ociSpec, err := newOCISpec(argv)
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if err != nil {
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return nil, fmt.Errorf("error constructing OCI specification: %v", err)
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}
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runc, err := newRuncRuntime()
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if err != nil {
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return nil, fmt.Errorf("error constructing runc runtime: %v", err)
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}
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r, err := newNvidiaContainerRuntimeWithLogger(logger.Logger, runc, ociSpec)
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if err != nil {
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return nil, fmt.Errorf("error constructing NVIDIA Container Runtime: %v", err)
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}
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return r, nil
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}
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// newOCISpec constructs an OCI spec for the provided arguments
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func newOCISpec(argv []string) (oci.Spec, error) {
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bundleDir, err := oci.GetBundleDir(argv)
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if err != nil {
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return nil, fmt.Errorf("error parsing command line arguments: %v", err)
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}
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logger.Infof("Using bundle directory: %v", bundleDir)
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ociSpecPath := oci.GetSpecFilePath(bundleDir)
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logger.Infof("Using OCI specification file path: %v", ociSpecPath)
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ociSpec := oci.NewSpecFromFile(ociSpecPath)
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return ociSpec, nil
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}
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// newRuncRuntime locates the runc binary and wraps it in a SyscallExecRuntime
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func newRuncRuntime() (oci.Runtime, error) {
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return oci.NewLowLevelRuntimeWithLogger(
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logger.Logger,
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dockerRuncExecutableName,
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runcExecutableName,
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)
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}
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