// NodeInternalDNS identifies a DNS name which resolves to an IP address which has
	// the characteristics of a NodeInternalIP. The IP it resolves to may or may not
	// be a listed NodeInternalIP address.
	NodeInternalDNS NodeAddressType = "InternalDNS"

	// NodeExternalDNS identifies a DNS name which resolves to an IP address which has
	// the characteristics of a NodeExternalIP. The IP it resolves to may or may not

	// NodeInternalDNS identifies a DNS name which resolves to an IP address which has
	// the characteristics of a NodeInternalIP. The IP it resolves to may or may not
	// be a listed NodeInternalIP address.
	NodeInternalDNS NodeAddressType = "InternalDNS"

	// NodeExternalDNS identifies a DNS name which resolves to an IP address which has
	// the characteristics of a NodeExternalIP. The IP it resolves to may or may not

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

  // spec defines the desired characteristics of a volume requested by a pod author.
  // More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#persistentvolumeclaims
  // +optional
  optional PersistentVolumeClaimSpec spec = 2;

	"metadata": "Standard object's metadata. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata",
	"spec":     "spec defines the desired characteristics of a volume requested by a pod author. More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#persistentvolumeclaims",

The [dynamic maximum volume count](https://github.com/kubernetes/enhancements/issues/554) feature was also moved to beta. This enables a volume plugin to specify the maximum number of a given volume type per node as a function of the node characteristics (for example, a larger limit for larger nodes, a smaller limit for smaller nodes).

// Not all resources have the same validation rules for names. Prefix is true
// if the name will have a value appended to it.  If the name is not valid,
// this returns a list of descriptions of individual characteristics of the
// value that were not valid.  Otherwise this returns an empty list or nil.
type ValidateNameFunc apimachineryvalidation.ValidateNameFunc

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

  // spec defines the desired characteristics of a volume requested by a pod author.
  // More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#persistentvolumeclaims
  // +optional
  optional PersistentVolumeClaimSpec spec = 2;