This container can be pulled via:
  docker pull registry.opensuse.org/home/dirkmueller/bci/cr/sle-15-sp6/images/suse/registry:2.8
  docker pull registry.opensuse.org/home/dirkmueller/bci/cr/sle-15-sp6/images/suse/registry:2.8-1.454

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.