mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
109 lines
2.6 KiB
Go
109 lines
2.6 KiB
Go
package daemon
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import (
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"bytes"
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"encoding/json"
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"io"
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"github.com/Sirupsen/logrus"
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"github.com/docker/docker/engine"
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"github.com/docker/docker/image"
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"github.com/docker/docker/runconfig"
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)
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type ContainerCommitConfig struct {
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Pause bool
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Repo string
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Tag string
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Author string
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Comment string
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Changes []string
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Config io.ReadCloser
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}
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func (daemon *Daemon) ContainerCommit(name string, c *ContainerCommitConfig) (string, error) {
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container, err := daemon.Get(name)
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if err != nil {
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return "", err
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}
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var (
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subenv engine.Env
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config = container.Config
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stdoutBuffer = bytes.NewBuffer(nil)
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newConfig runconfig.Config
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)
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if err := subenv.Decode(c.Config); err != nil {
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logrus.Errorf("%s", err)
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}
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buildConfigJob := daemon.eng.Job("build_config")
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buildConfigJob.Stdout.Add(stdoutBuffer)
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buildConfigJob.SetenvList("changes", c.Changes)
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// FIXME this should be remove when we remove deprecated config param
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buildConfigJob.SetenvSubEnv("config", &subenv)
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if err := buildConfigJob.Run(); err != nil {
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return "", err
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}
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if err := json.NewDecoder(stdoutBuffer).Decode(&newConfig); err != nil {
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return "", err
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}
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if err := runconfig.Merge(&newConfig, config); err != nil {
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return "", err
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}
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img, err := daemon.Commit(container, c.Repo, c.Tag, c.Comment, c.Author, c.Pause, &newConfig)
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if err != nil {
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return "", err
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}
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return img.ID, nil
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}
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// Commit creates a new filesystem image from the current state of a container.
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// The image can optionally be tagged into a repository
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func (daemon *Daemon) Commit(container *Container, repository, tag, comment, author string, pause bool, config *runconfig.Config) (*image.Image, error) {
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if pause && !container.IsPaused() {
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container.Pause()
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defer container.Unpause()
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}
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if err := container.Mount(); err != nil {
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return nil, err
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}
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defer container.Unmount()
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rwTar, err := container.ExportRw()
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if err != nil {
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return nil, err
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}
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defer rwTar.Close()
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// Create a new image from the container's base layers + a new layer from container changes
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var (
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containerID, parentImageID string
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containerConfig *runconfig.Config
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)
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if container != nil {
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containerID = container.ID
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parentImageID = container.ImageID
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containerConfig = container.Config
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}
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img, err := daemon.graph.Create(rwTar, containerID, parentImageID, comment, author, containerConfig, config)
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if err != nil {
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return nil, err
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}
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// Register the image if needed
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if repository != "" {
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if err := daemon.repositories.Tag(repository, tag, img.ID, true); err != nil {
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return img, err
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}
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}
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return img, nil
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}
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