This container can be pulled via:
  docker pull registry.opensuse.org/devel/bci/sle-15-sp7/containerfile/suse/mariadb:10.11
  docker pull registry.opensuse.org/devel/bci/sle-15-sp7/containerfile/suse/mariadb:10.11.9
  docker pull registry.opensuse.org/devel/bci/sle-15-sp7/containerfile/suse/mariadb:10.11.9-55.1
  docker pull registry.opensuse.org/devel/bci/sle-15-sp7/containerfile/suse/rmt-mariadb:10.11
  docker pull registry.opensuse.org/devel/bci/sle-15-sp7/containerfile/suse/rmt-mariadb:10.11.9
  docker pull registry.opensuse.org/devel/bci/sle-15-sp7/containerfile/suse/rmt-mariadb:10.11.9-55.1

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.