moby/daemon/image_push.go
Tonis Tiigi 3d86b0c79b Implement content addressability for plugins
Move plugins to shared distribution stack with images.

Create immutable plugin config that matches schema2 requirements.

Ensure data being pushed is same as pulled/created.

Store distribution artifacts in a blobstore.

Run init layer setup for every plugin start.

Fix breakouts from unsafe file accesses.

Add support for `docker plugin install --alias`

Uses normalized references for default names to avoid collisions when using default hosts/tags.

Some refactoring of the plugin manager to support the change, like removing the singleton manager and adding manager config struct.

Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
Signed-off-by: Derek McGowan <derek@mcgstyle.net>
2016-12-23 13:29:58 -08:00

63 lines
1.9 KiB
Go

package daemon
import (
"io"
"github.com/docker/distribution/manifest/schema2"
"github.com/docker/docker/api/types"
"github.com/docker/docker/distribution"
progressutils "github.com/docker/docker/distribution/utils"
"github.com/docker/docker/pkg/progress"
"github.com/docker/docker/reference"
"golang.org/x/net/context"
)
// PushImage initiates a push operation on the repository named localName.
func (daemon *Daemon) PushImage(ctx context.Context, image, tag string, metaHeaders map[string][]string, authConfig *types.AuthConfig, outStream io.Writer) error {
ref, err := reference.ParseNamed(image)
if err != nil {
return err
}
if tag != "" {
// Push by digest is not supported, so only tags are supported.
ref, err = reference.WithTag(ref, tag)
if err != nil {
return err
}
}
// Include a buffer so that slow client connections don't affect
// transfer performance.
progressChan := make(chan progress.Progress, 100)
writesDone := make(chan struct{})
ctx, cancelFunc := context.WithCancel(ctx)
go func() {
progressutils.WriteDistributionProgress(cancelFunc, outStream, progressChan)
close(writesDone)
}()
imagePushConfig := &distribution.ImagePushConfig{
Config: distribution.Config{
MetaHeaders: metaHeaders,
AuthConfig: authConfig,
ProgressOutput: progress.ChanOutput(progressChan),
RegistryService: daemon.RegistryService,
ImageEventLogger: daemon.LogImageEvent,
MetadataStore: daemon.distributionMetadataStore,
ImageStore: distribution.NewImageConfigStoreFromStore(daemon.imageStore),
ReferenceStore: daemon.referenceStore,
},
ConfigMediaType: schema2.MediaTypeImageConfig,
LayerStore: distribution.NewLayerProviderFromStore(daemon.layerStore),
TrustKey: daemon.trustKey,
UploadManager: daemon.uploadManager,
}
err = distribution.Push(ctx, ref, imagePushConfig)
close(progressChan)
<-writesDone
return err
}