This container can be pulled via:
  docker pull registry.opensuse.org/home/defolos/bci/cr/sle-15-sp4/containerfile/suse/postgres:13
  docker pull registry.opensuse.org/home/defolos/bci/cr/sle-15-sp4/containerfile/suse/postgres:13-4.187
  docker pull registry.opensuse.org/home/defolos/bci/cr/sle-15-sp4/containerfile/suse/postgres:13.12

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.