This container can be pulled via:
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/kubic/nfs-client-provisioner:4.0.0
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/kubic/nfs-client-provisioner:4.0.0-2.39
  docker pull registry.opensuse.org/opensuse/factory/totest/containers/kubic/nfs-client-provisioner:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.