package plugin import ( "context" "fmt" "strings" "github.com/docker/distribution/reference" "github.com/docker/docker/cli" "github.com/docker/docker/cli/command" "github.com/docker/docker/pkg/jsonmessage" "github.com/pkg/errors" "github.com/spf13/cobra" ) func newUpgradeCommand(dockerCli *command.DockerCli) *cobra.Command { var options pluginOptions cmd := &cobra.Command{ Use: "upgrade [OPTIONS] PLUGIN [REMOTE]", Short: "Upgrade an existing plugin", Args: cli.RequiresRangeArgs(1, 2), RunE: func(cmd *cobra.Command, args []string) error { options.localName = args[0] if len(args) == 2 { options.remote = args[1] } return runUpgrade(dockerCli, options) }, } flags := cmd.Flags() loadPullFlags(&options, flags) flags.BoolVar(&options.skipRemoteCheck, "skip-remote-check", false, "Do not check if specified remote plugin matches existing plugin image") return cmd } func runUpgrade(dockerCli *command.DockerCli, opts pluginOptions) error { ctx := context.Background() p, _, err := dockerCli.Client().PluginInspectWithRaw(ctx, opts.localName) if err != nil { return fmt.Errorf("error reading plugin data: %v", err) } if p.Enabled { return fmt.Errorf("the plugin must be disabled before upgrading") } opts.localName = p.Name if opts.remote == "" { opts.remote = p.PluginReference } remote, err := reference.ParseNormalizedNamed(opts.remote) if err != nil { return errors.Wrap(err, "error parsing remote upgrade image reference") } remote = reference.TagNameOnly(remote) old, err := reference.ParseNormalizedNamed(p.PluginReference) if err != nil { return errors.Wrap(err, "error parsing current image reference") } old = reference.TagNameOnly(old) fmt.Fprintf(dockerCli.Out(), "Upgrading plugin %s from %s to %s\n", p.Name, reference.FamiliarString(old), reference.FamiliarString(remote)) if !opts.skipRemoteCheck && remote.String() != old.String() { if !command.PromptForConfirmation(dockerCli.In(), dockerCli.Out(), "Plugin images do not match, are you sure?") { return errors.New("canceling upgrade request") } } options, err := buildPullConfig(ctx, dockerCli, opts, "plugin upgrade") if err != nil { return err } responseBody, err := dockerCli.Client().PluginUpgrade(ctx, opts.localName, options) if err != nil { if strings.Contains(err.Error(), "target is image") { return errors.New(err.Error() + " - Use `docker image pull`") } return err } defer responseBody.Close() if err := jsonmessage.DisplayJSONMessagesToStream(responseBody, dockerCli.Out(), nil); err != nil { return err } fmt.Fprintf(dockerCli.Out(), "Upgraded plugin %s to %s\n", opts.localName, opts.remote) // todo: return proper values from the API for this result return nil }