Imports
- github.com/docker/distribution
- github.com/docker/distribution/context
- github.com/docker/distribution/reference
- github.com/docker/distribution/registry/client
- github.com/docker/distribution/registry/client/auth
- github.com/docker/distribution/registry/client/auth/challenge
- github.com/docker/distribution/registry/client/transport
- github.com/golang/glog
- github.com/opencontainers/go-digest
- golang.org/x/net/context