// parameters that will be used by the driver when allocating a
  // resource that uses this class. A dynamic resource driver can
  // distinguish between parameters stored here and and those stored in
  // ResourceClaimSpec.
  // +optional
  optional ResourceClassParametersReference parametersRef = 3;

  // Only nodes matching the selector will be considered by the scheduler

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

  // Items is the list of Deployments.
  repeated Deployment items = 2;
}

// DEPRECATED.
// DeploymentRollback stores the information required to rollback a deployment.
message DeploymentRollback {
  // Required: This must match the Name of a deployment.
  optional string name = 1;

  // The annotations to be updated to a deployment

  // If all drivers in the list are uninstalled, this can become empty.
  // +patchMergeKey=name
  // +patchStrategy=merge
  repeated CSINodeDriver drivers = 1;
}

// CSIStorageCapacity stores the result of one CSI GetCapacity call.
// For a given StorageClass, this describes the available capacity in a
// particular topology segment.  This can be used when considering where to
// instantiate new PersistentVolumes.

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

  // Items is the list of Deployments.
  repeated Deployment items = 2;
}

// DEPRECATED.
// DeploymentRollback stores the information required to rollback a deployment.
message DeploymentRollback {
  // Required: This must match the Name of a deployment.
  optional string name = 1;

  // The annotations to be updated to a deployment

  // If all drivers in the list are uninstalled, this can become empty.
  // +patchMergeKey=name
  // +patchStrategy=merge
  repeated CSINodeDriver drivers = 1;
}

// CSIStorageCapacity stores the result of one CSI GetCapacity call.
// For a given StorageClass, this describes the available capacity in a
// particular topology segment.  This can be used when considering where to
// instantiate new PersistentVolumes.