This container can be pulled via:
  docker pull registry.opensuse.org/home/nbelouin/factory157/images_16.0/kiwi-builder:10.2.12.0
  docker pull registry.opensuse.org/home/nbelouin/factory157/images_16.0/kiwi-builder:10.2.12.0-3.1

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.