mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2024-11-22 08:18:32 +00:00
111 lines
3.0 KiB
Go
111 lines
3.0 KiB
Go
/**
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# Copyright (c) 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 runtime
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import (
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"encoding/json"
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"fmt"
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"strings"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/config"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/info"
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"github.com/opencontainers/runtime-spec/specs-go"
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)
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// Run is an entry point that allows for idiomatic handling of errors
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// when calling from the main function.
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func (r rt) Run(argv []string) (rerr error) {
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defer func() {
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if rerr != nil {
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r.logger.Errorf("%v", rerr)
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}
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}()
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printVersion := hasVersionFlag(argv)
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if printVersion {
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fmt.Printf("%v version %v\n", "NVIDIA Container Runtime", info.GetVersionString(fmt.Sprintf("spec: %v", specs.Version)))
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}
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cfg, err := config.GetConfig()
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if err != nil {
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return fmt.Errorf("error loading config: %v", err)
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}
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r.logger.Update(
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cfg.NVIDIAContainerRuntimeConfig.DebugFilePath,
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cfg.NVIDIAContainerRuntimeConfig.LogLevel,
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argv,
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)
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defer func() {
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if rerr != nil {
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r.logger.Errorf("%v", rerr)
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}
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r.logger.Reset()
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}()
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// We apply some config updates here to ensure that the config is valid in
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// all cases.
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if r.modeOverride != "" {
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cfg.NVIDIAContainerRuntimeConfig.Mode = r.modeOverride
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}
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cfg.NVIDIACTKConfig.Path = config.ResolveNVIDIACTKPath(r.logger, cfg.NVIDIACTKConfig.Path)
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cfg.NVIDIAContainerRuntimeHookConfig.Path = config.ResolveNVIDIAContainerRuntimeHookPath(r.logger, cfg.NVIDIAContainerRuntimeHookConfig.Path)
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// Print the config to the output.
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configJSON, err := json.MarshalIndent(cfg, "", " ")
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if err == nil {
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r.logger.Infof("Running with config:\n%v", string(configJSON))
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} else {
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r.logger.Infof("Running with config:\n%+v", cfg)
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}
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r.logger.Debugf("Command line arguments: %v", argv)
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runtime, err := newNVIDIAContainerRuntime(r.logger, cfg, argv)
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if err != nil {
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return fmt.Errorf("failed to create NVIDIA Container Runtime: %v", err)
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}
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if printVersion {
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fmt.Print("\n")
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}
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return runtime.Exec(argv)
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}
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func (r rt) Errorf(format string, args ...interface{}) {
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r.logger.Errorf(format, args...)
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}
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// TODO: This should be refactored / combined with parseArgs in logger.
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func hasVersionFlag(args []string) bool {
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for i := 0; i < len(args); i++ {
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param := args[i]
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parts := strings.SplitN(param, "=", 2)
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trimmed := strings.TrimLeft(parts[0], "-")
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// If this is not a flag we continue
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if parts[0] == trimmed {
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continue
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}
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// Check the version flag
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if trimmed == "version" {
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return true
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}
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}
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return false
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}
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