mirror of https://github.com/docker/cli.git
69 lines
1.9 KiB
Go
69 lines
1.9 KiB
Go
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package engine
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import (
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"context"
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"fmt"
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"github.com/docker/cli/cli"
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"github.com/docker/cli/cli/command"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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)
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func newUpdateCommand(dockerCli command.Cli) *cobra.Command {
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var options extendedEngineInitOptions
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cmd := &cobra.Command{
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Use: "update [OPTIONS]",
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Short: "Update a local engine",
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Args: cli.NoArgs,
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RunE: func(cmd *cobra.Command, args []string) error {
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return runUpdate(dockerCli, options)
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},
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}
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flags := cmd.Flags()
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flags.StringVar(&options.EngineVersion, "version", "", "Specify engine version")
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flags.StringVar(&options.EngineImage, "engine-image", "", "Specify engine image")
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flags.StringVar(&options.RegistryPrefix, "registry-prefix", "", "Override the current location where engine images are pulled")
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flags.StringVar(&options.sockPath, "containerd", "", "override default location of containerd endpoint")
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return cmd
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}
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func runUpdate(dockerCli command.Cli, options extendedEngineInitOptions) error {
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ctx := context.Background()
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client, err := dockerCli.NewContainerizedEngineClient(options.sockPath)
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if err != nil {
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return errors.Wrap(err, "unable to access local containerd")
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}
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defer client.Close()
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if options.EngineImage == "" || options.RegistryPrefix == "" {
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currentOpts, err := client.GetCurrentEngineVersion(ctx)
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if err != nil {
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return err
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}
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if options.EngineImage == "" {
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options.EngineImage = currentOpts.EngineImage
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}
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if options.RegistryPrefix == "" {
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options.RegistryPrefix = currentOpts.RegistryPrefix
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}
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}
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authConfig, err := getRegistryAuth(dockerCli, options.RegistryPrefix)
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if err != nil {
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return err
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}
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if err := client.DoUpdate(ctx, options.EngineInitOptions, dockerCli.Out(), authConfig,
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func(ctx context.Context) error {
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client := dockerCli.Client()
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_, err := client.Ping(ctx)
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return err
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}); err != nil {
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return err
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}
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fmt.Fprintln(dockerCli.Out(), "Success! The docker engine is now running.")
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return nil
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}
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