mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-23 00:38:26 +00:00
98 lines
2.9 KiB
Go
98 lines
2.9 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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"path/filepath"
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"github.com/NVIDIA/nvidia-container-toolkit/tools/container/operator"
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)
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const (
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nvidiaContainerRuntimeSource = "/usr/bin/nvidia-container-runtime"
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)
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// installContainerRuntimes sets up the NVIDIA container runtimes, copying the executables
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// and implementing the required wrapper
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func installContainerRuntimes(toolkitDir string, driverRoot string) error {
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runtimes := operator.GetRuntimes()
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for _, runtime := range runtimes {
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r := newNvidiaContainerRuntimeInstaller(runtime.Path)
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_, err := r.install(toolkitDir)
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if err != nil {
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return fmt.Errorf("error installing NVIDIA container runtime: %v", err)
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}
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}
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return nil
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}
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// newNVidiaContainerRuntimeInstaller returns a new executable installer for the NVIDIA container runtime.
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// This installer will copy the specified source exectuable to the toolkit directory.
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// The executable is copied to a file with the same name as the source, but with a ".real" suffix and a wrapper is
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// created to allow for the configuration of the runtime environment.
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func newNvidiaContainerRuntimeInstaller(source string) *executable {
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wrapperName := filepath.Base(source)
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dotfileName := wrapperName + ".real"
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target := executableTarget{
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dotfileName: dotfileName,
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wrapperName: wrapperName,
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}
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return newRuntimeInstaller(source, target, nil)
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}
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func newRuntimeInstaller(source string, target executableTarget, env map[string]string) *executable {
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preLines := []string{
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"",
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"cat /proc/modules | grep -e \"^nvidia \" >/dev/null 2>&1",
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"if [ \"${?}\" != \"0\" ]; then",
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" echo \"nvidia driver modules are not yet loaded, invoking runc directly\"",
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" exec runc \"$@\"",
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"fi",
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"",
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}
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runtimeEnv := make(map[string]string)
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runtimeEnv["XDG_CONFIG_HOME"] = filepath.Join(destDirPattern, ".config")
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for k, v := range env {
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runtimeEnv[k] = v
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}
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r := executable{
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source: source,
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target: target,
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env: runtimeEnv,
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preLines: preLines,
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}
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return &r
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}
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func findLibraryRoot(root string) (string, error) {
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libnvidiamlPath, err := findManagementLibrary(root)
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if err != nil {
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return "", fmt.Errorf("error locating NVIDIA management library: %v", err)
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}
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return filepath.Dir(libnvidiamlPath), nil
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}
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func findManagementLibrary(root string) (string, error) {
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return findLibrary(root, "libnvidia-ml.so")
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}
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