dotcloud/docker

package images // import "github.com/docker/docker/daemon/images"

import (
    "context"
    "io"
    "time"

    "github.com/distribution/reference"
    "github.com/docker/distribution/manifest/schema2"
    "github.com/docker/docker/api/types/backend"
    "github.com/docker/docker/api/types/registry"
    "github.com/docker/docker/distribution"
    progressutils "github.com/docker/docker/distribution/utils"
    "github.com/docker/docker/pkg/progress"
    ocispec "github.com/opencontainers/image-spec/specs-go/v1"
)

// PushImage initiates a push operation on the repository named localName.
func (i *ImageService) PushImage(ctx context.Context, ref reference.Named, platform *ocispec.Platform, metaHeaders map[string][]string, authConfig *registry.AuthConfig, outStream io.Writer) error {
    if platform != nil {
        // Check if the image is actually the platform we want to push.
        _, err := i.GetImage(ctx, ref.String(), backend.GetImageOpts{Platform: platform})
        if err != nil {
            return err
        }
    }
    start := time.Now()
    // 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:  i.registryService,
            ImageEventLogger: i.LogImageEvent,
            MetadataStore:    i.distributionMetadataStore,
            ImageStore:       distribution.NewImageConfigStoreFromStore(i.imageStore),
            ReferenceStore:   i.referenceStore,
        },
        ConfigMediaType: schema2.MediaTypeImageConfig,
        LayerStores:     distribution.NewLayerProvidersFromStore(i.layerStore),
        UploadManager:   i.uploadManager,
    }

    err := distribution.Push(ctx, ref, imagePushConfig)
    close(progressChan)
    <-writesDone
    ImageActions.WithValues("push").UpdateSince(start)
    return err
}