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