This container can be pulled via:
  docker pull registry.opensuse.org/home/fcrozat/opensuse-devstacks/containers_tw/opensuse/openjdk:16
  docker pull registry.opensuse.org/home/fcrozat/opensuse-devstacks/containers_tw/opensuse/openjdk:16.0.1
  docker pull registry.opensuse.org/home/fcrozat/opensuse-devstacks/containers_tw/opensuse/openjdk:16.0.1.8.18

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.