This container can be pulled via:
  docker pull registry.opensuse.org/filesystems/ceph/nautilus/images/ceph/ceph:14.2.11.394
  docker pull registry.opensuse.org/filesystems/ceph/nautilus/images/ceph/ceph:14.2.11.394.7.108
  docker pull registry.opensuse.org/filesystems/ceph/nautilus/images/ceph/ceph:latest
  docker pull registry.opensuse.org/filesystems/ceph/nautilus/images/ceph/ceph:leap15.1.nautilus

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.