Imports
- github.com/Sirupsen/logrus
- github.com/docker/distribution/digest
- github.com/docker/docker/distribution/metadata
- github.com/docker/docker/image
- github.com/docker/docker/image/v1
- github.com/docker/docker/layer
- github.com/docker/docker/pkg/ioutils
- github.com/docker/docker/reference