This container can be pulled via:
  docker pull registry.opensuse.org/home/steven.hardy/isv/suse/edge/factory/images/ironic:35.0.0.1
  docker pull registry.opensuse.org/home/steven.hardy/isv/suse/edge/factory/images/ironic:35.0.0.1-3.1

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.