This container can be pulled via:
  docker pull registry.opensuse.org/home/favogt/releasetest/images/opensuse/tumbleweed:20210311
  docker pull registry.opensuse.org/home/favogt/releasetest/images/opensuse/tumbleweed:20210311.52.183
  docker pull registry.opensuse.org/home/favogt/releasetest/images/opensuse/tumbleweed:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.