This container can be pulled via:
  docker pull registry.opensuse.org/isv/suse/edge/factory/totest/images/ironic-ipa-downloader:3.1.2
  docker pull registry.opensuse.org/isv/suse/edge/factory/totest/images/ironic-ipa-downloader:3.1.2-305.6

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.