Imports
- github.com/Sirupsen/logrus
- github.com/containers/image/docker/policyconfiguration
- github.com/containers/image/image
- github.com/containers/image/manifest
- github.com/containers/image/types
- github.com/docker/docker/pkg/homedir
- github.com/docker/docker/reference
- github.com/ghodss/yaml