// A binding is invalid if spec.paramRef.name refers to a non-existent resource.
  //
  // failurePolicy does not define how validations that evaluate to false are handled.
  //
  // When failurePolicy is set to Fail, ValidatingAdmissionPolicyBinding validationActions
  // define how failures are enforced.
  //
  // Allowed values are Ignore or Fail. Defaults to Fail.
  // +optional

  // +optional
  optional int64 observedGeneration = 1;

  // DisruptedPods contains information about pods whose eviction was
  // processed by the API server eviction subresource handler but has not
  // yet been observed by the PodDisruptionBudget controller.
  // A pod will be in this map from the time when the API server processed the
  // eviction request to the time when the pod is seen by PDB controller

}

// VolumeAttachmentSpec is the specification of a VolumeAttachment request.
message VolumeAttachmentSpec {
  // attacher indicates the name of the volume driver that MUST handle this
  // request. This is the name returned by GetPluginName().
  optional string attacher = 1;

  // source represents the volume that should be attached.
  optional VolumeAttachmentSource source = 2;