1
0
Fork 0
mirror of https://github.com/moby/moby.git synced 2022-11-09 12:21:53 -05:00
moby--moby/daemon/commit.go
Andrew C. Bodine d25a65375c Closes #9311 Handles container id/name collisions against daemon functionalities according to #8069
Signed-off-by: Andrew C. Bodine <acbodine@us.ibm.com>
2015-01-21 17:11:31 -08:00

84 lines
2.1 KiB
Go

package daemon
import (
"github.com/docker/docker/engine"
"github.com/docker/docker/image"
"github.com/docker/docker/runconfig"
)
func (daemon *Daemon) ContainerCommit(job *engine.Job) engine.Status {
if len(job.Args) != 1 {
return job.Errorf("Not enough arguments. Usage: %s CONTAINER\n", job.Name)
}
name := job.Args[0]
container, err := daemon.Get(name)
if err != nil {
return job.Error(err)
}
var (
config = container.Config
newConfig runconfig.Config
)
if err := job.GetenvJson("config", &newConfig); err != nil {
return job.Error(err)
}
if err := runconfig.Merge(&newConfig, config); err != nil {
return job.Error(err)
}
img, err := daemon.Commit(container, job.Getenv("repo"), job.Getenv("tag"), job.Getenv("comment"), job.Getenv("author"), job.GetenvBool("pause"), &newConfig)
if err != nil {
return job.Error(err)
}
job.Printf("%s\n", img.ID)
return engine.StatusOK
}
// 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, repository, tag, comment, author string, pause bool, config *runconfig.Config) (*image.Image, error) {
if pause {
container.Pause()
defer container.Unpause()
}
if err := container.Mount(); err != nil {
return nil, err
}
defer container.Unmount()
rwTar, err := container.ExportRw()
if err != nil {
return nil, err
}
defer rwTar.Close()
// Create a new image from the container's base layers + a new layer from container changes
var (
containerID, parentImageID string
containerConfig *runconfig.Config
)
if container != nil {
containerID = container.ID
parentImageID = container.ImageID
containerConfig = container.Config
}
img, err := daemon.graph.Create(rwTar, containerID, parentImageID, comment, author, containerConfig, config)
if err != nil {
return nil, err
}
// Register the image if needed
if repository != "" {
if err := daemon.repositories.Set(repository, tag, img.ID, true); err != nil {
return img, err
}
}
return img, nil
}