//
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.ObjectMeta metadata = 1;

  // The specification for the PersistentVolumeClaim. The entire content is
  // copied unchanged into the PVC that gets created from this
  // template. The same fields as in a PersistentVolumeClaim
  // are also valid here.
  optional PersistentVolumeClaimSpec spec = 2;
}