This container can be pulled via:
  docker pull registry.opensuse.org/isv/suse/edge/factory/snapshot/images/ironic:29.0.4.1
  docker pull registry.opensuse.org/isv/suse/edge/factory/snapshot/images/ironic:29.0.4.1-163.1

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.