This container can be pulled via:
  docker pull registry.opensuse.org/home/defolos/bci/cr/sle-15-sp5/containerfile/suse/postgres:15
  docker pull registry.opensuse.org/home/defolos/bci/cr/sle-15-sp5/containerfile/suse/postgres:15.8
  docker pull registry.opensuse.org/home/defolos/bci/cr/sle-15-sp5/containerfile/suse/postgres:15.8-31.1

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.