package container import ( "errors" "fmt" "strings" "github.com/docker/docker/cli" "github.com/docker/docker/cli/command" "github.com/spf13/cobra" "golang.org/x/net/context" ) type renameOptions struct { oldName string newName string } // NewRenameCommand creates a new cobra.Command for `docker rename` func NewRenameCommand(dockerCli *command.DockerCli) *cobra.Command { var opts renameOptions cmd := &cobra.Command{ Use: "rename CONTAINER NEW_NAME", Short: "Rename a container", Args: cli.ExactArgs(2), RunE: func(cmd *cobra.Command, args []string) error { opts.oldName = args[0] opts.newName = args[1] return runRename(dockerCli, &opts) }, } return cmd } func runRename(dockerCli *command.DockerCli, opts *renameOptions) error { ctx := context.Background() oldName := strings.TrimSpace(opts.oldName) newName := strings.TrimSpace(opts.newName) if oldName == "" || newName == "" { return errors.New("Error: Neither old nor new names may be empty") } if err := dockerCli.Client().ContainerRename(ctx, oldName, newName); err != nil { fmt.Fprintln(dockerCli.Err(), err) return fmt.Errorf("Error: failed to rename container named %s", oldName) } return nil }