This container can be pulled via:
  docker pull registry.opensuse.org/filesystems/ceph/pacific/images/ceph/haproxy:2.0.31
  docker pull registry.opensuse.org/filesystems/ceph/pacific/images/ceph/haproxy:2.0.31.10.139
  docker pull registry.opensuse.org/filesystems/ceph/pacific/images/ceph/haproxy:latest
  docker pull registry.opensuse.org/filesystems/ceph/pacific/images/ceph/haproxy:leap15.3.pacific

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.