This container can be pulled via:
  docker pull registry.opensuse.org/home/fcrozat/branches/suse/alp/workloads/tumbleweed_images/suse/alp/workloads/firewalld:2.0.1
  docker pull registry.opensuse.org/home/fcrozat/branches/suse/alp/workloads/tumbleweed_images/suse/alp/workloads/firewalld:2.0.1-6.17
  docker pull registry.opensuse.org/home/fcrozat/branches/suse/alp/workloads/tumbleweed_images/suse/alp/workloads/firewalld:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.