This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/opensuse/registry:2
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/opensuse/registry:2.8.3
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/opensuse/registry:2.8.3-7.29

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.