This container can be pulled via:
  docker pull registry.opensuse.org/devel/bci/sle-15-sp7/images/bci/bci-base:15.7
  docker pull registry.opensuse.org/devel/bci/sle-15-sp7/images/bci/bci-base:15.7.1.127
  docker pull registry.opensuse.org/devel/bci/sle-15-sp7/images/suse/sle15:15.7
  docker pull registry.opensuse.org/devel/bci/sle-15-sp7/images/suse/sle15:15.7.1.127

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.