This container can be pulled via:
  docker pull registry.opensuse.org/home/defolos/bci/staging/sle-15-sp6/6-1380/containerfile/bci/openjdk-devel:21
  docker pull registry.opensuse.org/home/defolos/bci/staging/sle-15-sp6/6-1380/containerfile/bci/openjdk-devel:21-1.4
  docker pull registry.opensuse.org/home/defolos/bci/staging/sle-15-sp6/6-1380/containerfile/bci/openjdk-devel:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.