This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/opensuse/mariadb:13.0
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/opensuse/mariadb:13.0.2
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/opensuse/mariadb:13.0.2-77.16
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/opensuse/mariadb:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.