This container can be pulled via:
  docker pull registry.opensuse.org/home/nbelouin/factorybuild/images/edge-image-builder:1.3.4
  docker pull registry.opensuse.org/home/nbelouin/factorybuild/images/edge-image-builder:1.3.4-1.8

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.