This container can be pulled via:
  docker pull registry.opensuse.org/home/illuusio/images/images_16.0/nextcloud:16.0
  docker pull registry.opensuse.org/home/illuusio/images/images_16.0/nextcloud:32.0.1
  docker pull registry.opensuse.org/home/illuusio/images/images_16.0/nextcloud:32.0.1-17.3

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.