t.Fatal("did not get write lock")
		}

		rResources[i] = arg.Resources[0]
	}
	if len(l.lockMap) != len(rResources)+len(wResources) {
		t.Fatalf("lockmap len, got %d, want %d + %d", len(l.lockMap), len(rResources), len(wResources))
	}
	if len(l.lockUID) != len(rResources)+len(wResources) {
		t.Fatalf("lockUID len, got %d, want %d + %d", len(l.lockUID), len(rResources), len(wResources))
	}
	// Expire an hour from now, should keep all

	lastDriveStatsRefresh time.Time
)

// PeerResourceMetrics represents the resource metrics
// retrieved from a peer, along with errors if any
type PeerResourceMetrics struct {
	Metrics map[MetricSubsystem]ResourceMetrics
	Errors  []string
}

// ResourceMetrics is a map of unique key identifying
// a resource metric (e.g. reads_per_sec_{node}_{drive})
// to its data
type ResourceMetrics map[string]ResourceMetric

		reply = true
	}
	return reply, nil
}

func (l *localLocker) RUnlock(_ context.Context, args dsync.LockArgs) (reply bool, err error) {
	if len(args.Resources) > 1 {
		return false, fmt.Errorf("internal error: localLocker.RUnlock called with more than one resource")
	}

	l.mutex.Lock()
	defer l.mutex.Unlock()
	var lri []lockRequesterInfo

	resource := args.Resources[0]

  // Group is the API Group of the Resource.  "*" means all.
  // +optional
  optional string group = 3;

  // Version is the API Version of the Resource.  "*" means all.
  // +optional
  optional string version = 4;

  // Resource is one of the existing resource types.  "*" means all.
  // +optional
  optional string resource = 5;

  // Subresource is one of the existing resource types.  "" means none.
  // +optional

  private final ImmutableSet<ResourceInfo> resources;

  private ClassPath(ImmutableSet<ResourceInfo> resources) {
    this.resources = resources;
  }

  /**
   * Returns a {@code ClassPath} representing all classes and resources loadable from {@code
   * classloader} and its ancestor class loaders.
   *
   * <p><b>Warning:</b> {@code ClassPath} can find classes and resources only from:
   *
   * <ul>

Istio reads from over 20 different resources types, and aggregates them together to build the proxy configuration. These resources can be sourced from Kubernetes (via watches), files, or over xDS; Kubernetes is by far the most common usage, though.

Primarily for historical reasons, ingestion is split into a few components.

#### ConfigStore

  // +optional
  optional string apiGroup = 1;

  // Kind is the type of resource being referenced. This is the same
  // value as in the parameter object's metadata.
  optional string kind = 2;

  // Name is the name of resource being referenced.
  optional string name = 3;

  // Namespace that contains the referenced resource. Must be empty

  // Group is the API Group of the Resource.  "*" means all.
  // +optional
  optional string group = 3;

  // Version is the API Version of the Resource.  "*" means all.
  // +optional
  optional string version = 4;

  // Resource is one of the existing resource types.  "*" means all.
  // +optional
  optional string resource = 5;

  // Subresource is one of the existing resource types.  "" means none.
  // +optional

  // Required.
  repeated string apiGroups = 2;

  // `resources` is a list of matching resources (i.e., lowercase
  // and plural) with, if desired, subresource.  For example, [
  // "services", "nodes/status" ].  This list may not be empty.
  // "*" matches all resources and, if present, must be the only entry.
  // Required.
  // +listType=set
  repeated string resources = 3;

  // Kind is the API kind the resources belong to.
  // Required.
  optional string kind = 2;
}

// ParamRef references a parameter resource
// +structType=atomic
message ParamRef {
  // Name of the resource being referenced.
  optional string name = 1;

  // Namespace of the referenced resource.
  // Should be empty for the cluster-scoped resources
  // +optional
  optional string namespace = 2;
}