This container can be pulled via:
  docker pull registry.opensuse.org/devel/bci/tumbleweed/containerfile/opensuse/postgres:15
  docker pull registry.opensuse.org/devel/bci/tumbleweed/containerfile/opensuse/postgres:15-159.12
  docker pull registry.opensuse.org/devel/bci/tumbleweed/containerfile/opensuse/postgres:15.7
  docker pull registry.opensuse.org/devel/bci/tumbleweed/containerfile/opensuse/postgres:15.7-159.12

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.