This container can be pulled via:
  docker pull registry.opensuse.org/home/drinkybird/images/containers/thirty:latest
  docker pull registry.opensuse.org/home/drinkybird/images/containers/thirty:null.290.2a455145257e-100.8
  docker pull registry.opensuse.org/home/drinkybird/images/containers/thirty:null.290.2a455145257e-100.8.1.220

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.