package container import ( "fmt" "github.com/docker/docker/api/types" "github.com/docker/docker/cli" "github.com/docker/docker/cli/command" dockeropts "github.com/docker/docker/opts" "github.com/spf13/cobra" "golang.org/x/net/context" ) type commitOptions struct { container string reference string pause bool comment string author string changes dockeropts.ListOpts } // NewCommitCommand creates a new cobra.Command for `docker commit` func NewCommitCommand(dockerCli *command.DockerCli) *cobra.Command { var opts commitOptions cmd := &cobra.Command{ Use: "commit [OPTIONS] CONTAINER [REPOSITORY[:TAG]]", Short: "Create a new image from a container's changes", Args: cli.RequiresRangeArgs(1, 2), RunE: func(cmd *cobra.Command, args []string) error { opts.container = args[0] if len(args) > 1 { opts.reference = args[1] } return runCommit(dockerCli, &opts) }, } flags := cmd.Flags() flags.SetInterspersed(false) flags.BoolVarP(&opts.pause, "pause", "p", true, "Pause container during commit") flags.StringVarP(&opts.comment, "message", "m", "", "Commit message") flags.StringVarP(&opts.author, "author", "a", "", "Author (e.g., \"John Hannibal Smith \")") opts.changes = dockeropts.NewListOpts(nil) flags.VarP(&opts.changes, "change", "c", "Apply Dockerfile instruction to the created image") return cmd } func runCommit(dockerCli *command.DockerCli, opts *commitOptions) error { ctx := context.Background() name := opts.container reference := opts.reference options := types.ContainerCommitOptions{ Reference: reference, Comment: opts.comment, Author: opts.author, Changes: opts.changes.GetAll(), Pause: opts.pause, } response, err := dockerCli.Client().ContainerCommit(ctx, name, options) if err != nil { return err } fmt.Fprintln(dockerCli.Out(), response.ID) return nil }