This container can be pulled via:
  docker pull registry.opensuse.org/home/roxenham/kiwi-ca-certs/images/kiwi-builder:10.2.34.0
  docker pull registry.opensuse.org/home/roxenham/kiwi-ca-certs/images/kiwi-builder:10.2.34.0-10.5

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.