This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/factory/zsystems/totest/containers/opensuse/nfs-server:2.8.1
  docker pull registry.opensuse.org/opensuse/factory/zsystems/totest/containers/opensuse/nfs-server:2.8.1-4.115
  docker pull registry.opensuse.org/opensuse/factory/zsystems/totest/containers/opensuse/nfs-server:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.