This container can be pulled via:
  docker pull registry.opensuse.org/devel/bci/tumbleweed/images/opensuse/registry:2.8
  docker pull registry.opensuse.org/devel/bci/tumbleweed/images/opensuse/registry:2.8-156.12
  docker pull registry.opensuse.org/devel/bci/tumbleweed/images/opensuse/registry:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.