mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
synced 2025-06-16 11:30:20 +00:00
479df7134a
This change allows hooks to be configured with debug logging. This is currently only enabled for the hooks generated from the runtime. Signed-off-by: Evan Lezar <elezar@nvidia.com>
108 lines
3.2 KiB
Go
108 lines
3.2 KiB
Go
/**
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# Copyright (c) 2024, 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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"os"
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"github.com/sirupsen/logrus"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/info"
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cli "github.com/urfave/cli/v2"
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"github.com/NVIDIA/nvidia-container-toolkit/cmd/nvidia-cdi-hook/commands"
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)
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// options defines the options that can be set for the CLI through config files,
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// environment variables, or command line flags
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type options struct {
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// Debug indicates whether the CLI is started in "debug" mode
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Debug bool
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// Quiet indicates whether the CLI is started in "quiet" mode
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Quiet bool
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}
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func main() {
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logger := logrus.New()
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// Create a options struct to hold the parsed environment variables or command line flags
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opts := options{}
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// Create the top-level CLI
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c := cli.NewApp()
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c.Name = "NVIDIA CDI Hook"
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c.UseShortOptionHandling = true
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c.EnableBashCompletion = true
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c.Usage = "Command to structure files for usage inside a container, called as hooks from a container runtime, defined in a CDI yaml file"
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c.Version = info.GetVersionString()
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// We set the default action for the `nvidia-cdi-hook` command to issue a
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// warning and exit with no error.
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// This means that if an unsupported hook is run, a container will not fail
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// to launch. An unsupported hook could be the result of a CDI specification
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// referring to a new hook that is not yet supported by an older NVIDIA
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// Container Toolkit version or a hook that has been removed in newer
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// version.
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c.Action = func(ctx *cli.Context) error {
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commands.IssueUnsupportedHookWarning(logger, ctx)
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return nil
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}
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// Setup the flags for this command
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c.Flags = []cli.Flag{
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&cli.BoolFlag{
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Name: "debug",
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Aliases: []string{"d"},
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Usage: "Enable debug-level logging",
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Destination: &opts.Debug,
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// TODO: Support for NVIDIA_CDI_DEBUG is deprecated and NVIDIA_CTK_DEBUG should be used instead.
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EnvVars: []string{"NVIDIA_CTK_DEBUG", "NVIDIA_CDI_DEBUG"},
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},
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&cli.BoolFlag{
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Name: "quiet",
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Usage: "Suppress all output except for errors; overrides --debug",
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Destination: &opts.Quiet,
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// TODO: Support for NVIDIA_CDI_QUIET is deprecated and NVIDIA_CTK_QUIET should be used instead.
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EnvVars: []string{"NVDIA_CTK_QUIET", "NVIDIA_CDI_QUIET"},
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},
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}
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// Set log-level for all subcommands
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c.Before = func(c *cli.Context) error {
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logLevel := logrus.InfoLevel
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if opts.Debug {
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logLevel = logrus.DebugLevel
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}
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if opts.Quiet {
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logLevel = logrus.ErrorLevel
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}
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logger.SetLevel(logLevel)
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return nil
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}
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// Define the subcommands
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c.Commands = commands.New(logger)
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// Run the CLI
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err := c.Run(os.Args)
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if err != nil {
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logger.Errorf("%v", err)
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os.Exit(1)
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}
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}
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