// AllowedCSIDriver represents a single inline CSI Driver that is allowed to be used.
message AllowedCSIDriver {
  // Name is the registered name of the CSI driver
  optional string name = 1;
}

// AllowedFlexVolume represents a single Flexvolume that is allowed to be used.
message AllowedFlexVolume {
  // driver is the name of the Flexvolume driver.
  optional string driver = 1;
}

// and any errors experienced during the evaluation. SelfSubjectRulesReview should be used by UIs to show/hide actions,
// or to quickly let an end user reason about their permissions. It should NOT Be used by external systems to
// drive authorization decisions as this raises confused deputy, cache lifetime/revocation, and correctness concerns.
// SubjectAccessReview, and LocalAccessReview are the correct way to defer authorization decisions to the API server.

message ResourceClaimSpec {
  // ResourceClassName references the driver and additional parameters
  // via the name of a ResourceClass that was created as part of the
  // driver deployment.
  optional string resourceClassName = 1;

  // ParametersRef references a separate object with arbitrary parameters
  // that will be used by the driver when allocating a resource for the
  // claim.
  //

// - such an object exists, but the capacity is zero
//
// The producer of these objects can decide which approach is more suitable.
//
// They are consumed by the kube-scheduler when a CSI driver opts into
// capacity-aware scheduling with CSIDriverSpec.StorageCapacity. The scheduler
// compares the MaximumVolumeSize against the requested size of pending volumes

// and any errors experienced during the evaluation. SelfSubjectRulesReview should be used by UIs to show/hide actions,
// or to quickly let an end user reason about their permissions. It should NOT Be used by external systems to
// drive authorization decisions as this raises confused deputy, cache lifetime/revocation, and correctness concerns.
// SubjectAccessReview, and LocalAccessReview are the correct way to defer authorization decisions to the API server.

// CSIDriver captures information about a Container Storage Interface (CSI)
// volume driver deployed on the cluster.
// CSI drivers do not need to create the CSIDriver object directly. Instead they may use the
// cluster-driver-registrar sidecar container. When deployed with a CSI driver it automatically
// creates a CSIDriver object representing the driver.
// Kubernetes attach detach controller uses this object to determine whether attach is required.

  // storageCapacity indicates that the CSI volume driver wants pod scheduling to consider the storage
  // capacity that the driver deployment will report by creating
  // CSIStorageCapacity objects with capacity information, if set to true.
  //
  // The check can be enabled immediately when deploying a driver.
  // In that case, provisioning new volumes with late binding
  // will pause until the driver deployment has published

  optional ObjectReference target = 2;
}

// Represents storage that is managed by an external CSI volume driver (Beta feature)
message CSIPersistentVolumeSource {
  // driver is the name of the driver to use for this volume.
  // Required.
  optional string driver = 1;

  // volumeHandle is the unique volume name returned by the CSI volume