This container can be pulled via:
  docker pull registry.opensuse.org/isv/suse/edge/factory/images_16.0/kiwi-builder:10.2.29.1
  docker pull registry.opensuse.org/isv/suse/edge/factory/images_16.0/kiwi-builder:10.2.29.1-11.1

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.