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image_push.go
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image_push.go
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package daemon
import (
"io"
"github.com/docker/docker/distribution"
"github.com/docker/docker/pkg/progress"
"github.com/docker/docker/reference"
"github.com/docker/engine-api/types"
"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() {
writeDistributionProgress(cancelFunc, outStream, progressChan)
close(writesDone)
}()
imagePushConfig := &distribution.ImagePushConfig{
MetaHeaders: metaHeaders,
AuthConfig: authConfig,
ProgressOutput: progress.ChanOutput(progressChan),
RegistryService: daemon.RegistryService,
ImageEventLogger: daemon.LogImageEvent,
MetadataStore: daemon.distributionMetadataStore,
LayerStore: daemon.layerStore,
ImageStore: daemon.imageStore,
ReferenceStore: daemon.referenceStore,
TrustKey: daemon.trustKey,
UploadManager: daemon.uploadManager,
}
err = distribution.Push(ctx, ref, imagePushConfig)
close(progressChan)
<-writesDone
return err
}