This container can be pulled via:
  docker pull registry.opensuse.org/isv/suse/edge/3.2/images_6.0/3.2/kiwi-builder:10.2.12.1
  docker pull registry.opensuse.org/isv/suse/edge/3.2/images_6.0/3.2/kiwi-builder:10.2.12.1-39.8

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.