This container can be pulled via:
  docker pull registry.opensuse.org/home/bmanojlovic/geo/containers/postgresql11-postgis:3.3.4
  docker pull registry.opensuse.org/home/bmanojlovic/geo/containers/postgresql11-postgis:3.3.4-8.3536
  docker pull registry.opensuse.org/home/bmanojlovic/geo/containers/postgresql11-postgis:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.