This container can be pulled via:
  docker pull registry.opensuse.org/home/defolos/bci/staging/sle-15-sp5/sle15-sp5-rkmbq/containerfile/suse/389-ds:2.2
  docker pull registry.opensuse.org/home/defolos/bci/staging/sle-15-sp5/sle15-sp5-rkmbq/containerfile/suse/389-ds:2.2-1.301

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.