package main import ( "fmt" "github.com/containers/libpod/cmd/podman/cliconfig" "github.com/spf13/cobra" "io" "os" "strings" "github.com/containers/buildah" "github.com/containers/image/manifest" "github.com/containers/libpod/cmd/podman/libpodruntime" "github.com/containers/libpod/libpod" "github.com/containers/libpod/libpod/image" "github.com/containers/libpod/pkg/util" "github.com/pkg/errors" ) var ( commitCommand cliconfig.CommitValues commitDescription = `Create an image from a container's changes. Optionally tag the image created, set the author with the --author flag, set the commit message with the --message flag, and make changes to the instructions with the --change flag.` _commitCommand = &cobra.Command{ Use: "commit", Short: "Create new image based on the changed container", Long: commitDescription, RunE: func(cmd *cobra.Command, args []string) error { commitCommand.InputArgs = args commitCommand.GlobalFlags = MainGlobalOpts return commitCmd(&commitCommand) }, Example: "CONTAINER [REPOSITORY[:TAG]]", } ) func init() { commitCommand.Command = _commitCommand flags := commitCommand.Flags() flags.StringSliceVarP(&commitCommand.Change, "change", "c", []string{}, fmt.Sprintf("Apply the following possible instructions to the created image (default []): %s", strings.Join(libpod.ChangeCmds, " | "))) flags.StringVarP(&commitCommand.Format, "format", "f", "oci", "`Format` of the image manifest and metadata") flags.StringVarP(&commitCommand.Message, "message", "m", "", "Set commit message for imported image") flags.StringVarP(&commitCommand.Author, "author", "a", "", "Set the author for the image committed") flags.BoolVarP(&commitCommand.Pause, "pause", "p", false, "Pause container during commit") flags.BoolVarP(&commitCommand.Quiet, "quiet", "q", false, "Suppress output") rootCmd.AddCommand(commitCommand.Command) } func commitCmd(c *cliconfig.CommitValues) error { runtime, err := libpodruntime.GetRuntime(&c.PodmanCommand) if err != nil { return errors.Wrapf(err, "could not get runtime") } defer runtime.Shutdown(false) var ( writer io.Writer mimeType string ) args := c.InputArgs if len(args) != 2 { return errors.Errorf("you must provide a container name or ID and a target image name") } switch c.Format { case "oci": mimeType = buildah.OCIv1ImageManifest if c.Flag("message").Changed { return errors.Errorf("messages are only compatible with the docker image format (-f docker)") } case "docker": mimeType = manifest.DockerV2Schema2MediaType default: return errors.Errorf("unrecognized image format %q", c.Format) } container := args[0] reference := args[1] if c.Flag("change").Changed { for _, change := range c.Change { splitChange := strings.Split(strings.ToUpper(change), "=") if !util.StringInSlice(splitChange[0], libpod.ChangeCmds) { return errors.Errorf("invalid syntax for --change: %s", change) } } } if !c.Quiet { writer = os.Stderr } ctr, err := runtime.LookupContainer(container) if err != nil { return errors.Wrapf(err, "error looking up container %q", container) } sc := image.GetSystemContext(runtime.GetConfig().SignaturePolicyPath, "", false) coptions := buildah.CommitOptions{ SignaturePolicyPath: runtime.GetConfig().SignaturePolicyPath, ReportWriter: writer, SystemContext: sc, PreferredManifestType: mimeType, } options := libpod.ContainerCommitOptions{ CommitOptions: coptions, Pause: c.Pause, Message: c.Message, Changes: c.Change, Author: c.Author, } newImage, err := ctr.Commit(getContext(), reference, options) if err != nil { return err } fmt.Println(newImage.ID()) return nil }