This container can be pulled via:
  docker pull registry.opensuse.org/filesystems/ceph/pacific/images/ceph/keepalived:2.0.19
  docker pull registry.opensuse.org/filesystems/ceph/pacific/images/ceph/keepalived:2.0.19.9.137
  docker pull registry.opensuse.org/filesystems/ceph/pacific/images/ceph/keepalived:latest
  docker pull registry.opensuse.org/filesystems/ceph/pacific/images/ceph/keepalived:leap15.3.pacific

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.