This container can be pulled via:
  docker pull registry.opensuse.org/home/darix/apps/containers/vendor-discourse:latest
  docker pull registry.opensuse.org/home/darix/apps/containers/vendor-gitlab-js:latest
  docker pull registry.opensuse.org/home/darix/apps/containers/vendor-rails-apps:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.