This container can be pulled via:
  docker pull registry.opensuse.org/devel/bci/sle-15-sp5/containerfile/suse/postgres:15
  docker pull registry.opensuse.org/devel/bci/sle-15-sp5/containerfile/suse/postgres:15.8
  docker pull registry.opensuse.org/devel/bci/sle-15-sp5/containerfile/suse/postgres:15.8-177.6

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.