dotcloud/docker

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

import (
    "context"

    "github.com/distribution/reference"
    "github.com/docker/docker/api/types/events"
    "github.com/docker/docker/image"
)

// TagImage adds the given reference to the image ID provided.
func (i *ImageService) TagImage(ctx context.Context, imageID image.ID, newTag reference.Named) error {
    if err := i.referenceStore.AddTag(newTag, imageID.Digest(), true); err != nil {
        return err
    }

    if err := i.imageStore.SetLastUpdated(imageID); err != nil {
        return err
    }
    i.LogImageEvent(imageID.String(), reference.FamiliarString(newTag), events.ActionTag)
    return nil
}