This container can be pulled via:
  docker pull registry.opensuse.org/kubic/nfs-client-provisioner:4.0.0
  docker pull registry.opensuse.org/kubic/nfs-client-provisioner:4.0.0-2.37
  docker pull registry.opensuse.org/kubic/nfs-client-provisioner:latest

Set DOCKER_CONTENT_TRUST=1 to enable image tag verification.