This container can be pulled via:
  docker pull registry.opensuse.org/home/defolos/bci/cr/sle-15-sp6/containerfile/bci/openjdk-devel:21
  docker pull registry.opensuse.org/home/defolos/bci/cr/sle-15-sp6/containerfile/bci/openjdk-devel:21-12.11

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.