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:15-159.1
  docker pull registry.opensuse.org/devel/bci/sle-15-sp5/containerfile/suse/postgres:15.7
  docker pull registry.opensuse.org/devel/bci/sle-15-sp5/containerfile/suse/postgres:15.7-159.1

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.