65 lines
1.7 KiB
Go
65 lines
1.7 KiB
Go
package daemon
|
|
|
|
import (
|
|
"github.com/docker/docker/image"
|
|
"github.com/docker/docker/pkg/archive"
|
|
"github.com/docker/docker/pkg/ioutils"
|
|
"github.com/docker/docker/runconfig"
|
|
)
|
|
|
|
// ContainerCommitConfig contains build configs for commit operation,
|
|
// and is used when making a commit with the current state of the container.
|
|
type ContainerCommitConfig struct {
|
|
Pause bool
|
|
Repo string
|
|
Tag string
|
|
Author string
|
|
Comment string
|
|
Config *runconfig.Config
|
|
}
|
|
|
|
// Commit creates a new filesystem image from the current state of a container.
|
|
// The image can optionally be tagged into a repository.
|
|
func (daemon *Daemon) Commit(container *Container, c *ContainerCommitConfig) (*image.Image, error) {
|
|
if c.Pause && !container.isPaused() {
|
|
container.pause()
|
|
defer container.unpause()
|
|
}
|
|
|
|
rwTar, err := daemon.exportContainerRw(container)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer func() {
|
|
if rwTar != nil {
|
|
rwTar.Close()
|
|
}
|
|
}()
|
|
|
|
// Create a new image from the container's base layers + a new layer from container changes
|
|
img, err := daemon.graph.Create(rwTar, container.ID, container.ImageID, c.Comment, c.Author, container.Config, c.Config)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Register the image if needed
|
|
if c.Repo != "" {
|
|
if err := daemon.repositories.Tag(c.Repo, c.Tag, img.ID, true); err != nil {
|
|
return img, err
|
|
}
|
|
}
|
|
container.logEvent("commit")
|
|
return img, nil
|
|
}
|
|
|
|
func (daemon *Daemon) exportContainerRw(container *Container) (archive.Archive, error) {
|
|
archive, err := daemon.diff(container)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return ioutils.NewReadCloserWrapper(archive, func() error {
|
|
err := archive.Close()
|
|
return err
|
|
}),
|
|
nil
|
|
}
|