This container can be pulled via:
  docker pull registry.opensuse.org/home/spacemule/branches/opensuse/factory/container/opensuse/registry:2
  docker pull registry.opensuse.org/home/spacemule/branches/opensuse/factory/container/opensuse/registry:2.8.0
  docker pull registry.opensuse.org/home/spacemule/branches/opensuse/factory/container/opensuse/registry:2.8.0-20.161
  docker pull registry.opensuse.org/home/spacemule/branches/opensuse/factory/container/opensuse/registry:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.