Collect backendTLSPolicy and GRPCRoute Count (nginxinc#1954)

Problem: I want to collect the GRPCRoute and BackendTLSPolicy count from all NGF/NIC installations.

Solution: Adding two new fields GRPCRouteCount, BackendTLSPolicyCount to telemetry data collector.

internal/mode/static/telemetry/collector.go

@@ -67,6 +67,10 @@ type NGFResourceCounts struct {
 	ServiceCount int64
 	// EndpointCount include the total count of Endpoints(IP:port) across all referenced services.
 	EndpointCount int64
+	// GRPCRouteCount is the number of relevant GRPCRoutes.
+	GRPCRouteCount int64
+	// BackendTLSPolicyCount is the number of relevant BackendTLSPolicies.
+	BackendTLSPolicyCount int64
 }
 
 // DataCollectorConfig holds configuration parameters for DataCollectorImpl.
@@ -174,7 +178,7 @@ func collectGraphResourceCount(
 		ngfResourceCounts.GatewayCount++
 	}
 
-	ngfResourceCounts.HTTPRouteCount = computeRouteCount(g.Routes)
+	ngfResourceCounts.HTTPRouteCount, ngfResourceCounts.GRPCRouteCount = computeRouteCount(g.Routes)
 	ngfResourceCounts.SecretCount = int64(len(g.ReferencedSecrets))
 	ngfResourceCounts.ServiceCount = int64(len(g.ReferencedServices))
 
@@ -184,16 +188,21 @@ func collectGraphResourceCount(
 		}
 	}
 
+	ngfResourceCounts.BackendTLSPolicyCount = int64(len(g.BackendTLSPolicies))
+
 	return ngfResourceCounts, nil
 }
 
-func computeRouteCount(routes map[graph.RouteKey]*graph.L7Route) (httpRouteCount int64) {
+func computeRouteCount(routes map[graph.RouteKey]*graph.L7Route) (httpRouteCount, grpcRouteCount int64) {
 	for _, r := range routes {
 		if r.RouteType == graph.RouteTypeHTTP {
 			httpRouteCount = httpRouteCount + 1
 		}
+		if r.RouteType == graph.RouteTypeGRPC {
+			grpcRouteCount = grpcRouteCount + 1
+		}
 	}
-	return httpRouteCount
+	return httpRouteCount, grpcRouteCount
 }
 
 func getPodReplicaSet(

internal/mode/static/telemetry/collector_test.go

@@ -283,6 +283,7 @@ var _ = Describe("Collector", Ordered, func() {
 						{NamespacedName: types.NamespacedName{Namespace: "test", Name: "hr-2"}}: {RouteType: graph.RouteTypeHTTP},
 						{NamespacedName: types.NamespacedName{Namespace: "test", Name: "hr-3"}}: {RouteType: graph.RouteTypeHTTP},
 						{NamespacedName: types.NamespacedName{Namespace: "test", Name: "gr-1"}}: {RouteType: graph.RouteTypeGRPC},
+						{NamespacedName: types.NamespacedName{Namespace: "test", Name: "gr-2"}}: {RouteType: graph.RouteTypeGRPC},
 					},
 					ReferencedSecrets: map[types.NamespacedName]*graph.Secret{
 						client.ObjectKeyFromObject(secret1): {
@@ -298,6 +299,11 @@ var _ = Describe("Collector", Ordered, func() {
 						client.ObjectKeyFromObject(svc2):   {},
 						client.ObjectKeyFromObject(nilsvc): {},
 					},
+					BackendTLSPolicies: map[types.NamespacedName]*graph.BackendTLSPolicy{
+						{Namespace: "test", Name: "backendTLSPolicy-1"}: {},
+						{Namespace: "test", Name: "backendTLSPolicy-2"}: {},
+						{Namespace: "test", Name: "backendTLSPolicy-3"}: {},
+					},
 				}
 
 				config := &dataplane.Configuration{
@@ -336,12 +342,14 @@ var _ = Describe("Collector", Ordered, func() {
 
 				expData.ClusterNodeCount = 3
 				expData.NGFResourceCounts = telemetry.NGFResourceCounts{
-					GatewayCount:      3,
-					GatewayClassCount: 3,
-					HTTPRouteCount:    3,
-					SecretCount:       3,
-					ServiceCount:      3,
-					EndpointCount:     4,
+					GatewayCount:          3,
+					GatewayClassCount:     3,
+					HTTPRouteCount:        3,
+					SecretCount:           3,
+					ServiceCount:          3,
+					EndpointCount:         4,
+					GRPCRouteCount:        2,
+					BackendTLSPolicyCount: 3,
 				}
 				expData.ClusterVersion = "1.29.2"
 				expData.ClusterPlatform = "kind"
@@ -567,12 +575,14 @@ var _ = Describe("Collector", Ordered, func() {
 				fakeGraphGetter.GetLatestGraphReturns(&graph.Graph{})
 				fakeConfigurationGetter.GetLatestConfigurationReturns(invalidUpstreamsConfig)
 				expData.NGFResourceCounts = telemetry.NGFResourceCounts{
-					GatewayCount:      0,
-					GatewayClassCount: 0,
-					HTTPRouteCount:    0,
-					SecretCount:       0,
-					ServiceCount:      0,
-					EndpointCount:     0,
+					GatewayCount:          0,
+					GatewayClassCount:     0,
+					HTTPRouteCount:        0,
+					SecretCount:           0,
+					ServiceCount:          0,
+					EndpointCount:         0,
+					GRPCRouteCount:        0,
+					BackendTLSPolicyCount: 0,
 				}
 
 				data, err := dataCollector.Collect(ctx)

internal/mode/static/telemetry/data.avdl

@@ -62,6 +62,12 @@ Each value is either 'true' or 'false' for boolean flags and 'default' or 'user-
 		/** EndpointCount include the total count of Endpoints(IP:port) across all referenced services. */
 		long? EndpointCount = null;
 
+		/** GRPCRouteCount is the number of relevant GRPCRoutes. */
+		long? GRPCRouteCount = null;
+
+		/** BackendTLSPolicyCount is the number of relevant BackendTLSPolicies. */
+		long? BackendTLSPolicyCount = null;
+
 		/** NGFReplicaCount is the number of replicas of the NGF Pod. */
 		long? NGFReplicaCount = null;
 

internal/mode/static/telemetry/data_test.go

@@ -24,12 +24,14 @@ func TestDataAttributes(t *testing.T) {
 		FlagNames:  []string{"test-flag"},
 		FlagValues: []string{"test-value"},
 		NGFResourceCounts: NGFResourceCounts{
-			GatewayCount:      1,
-			GatewayClassCount: 2,
-			HTTPRouteCount:    3,
-			SecretCount:       4,
-			ServiceCount:      5,
-			EndpointCount:     6,
+			GatewayCount:          1,
+			GatewayClassCount:     2,
+			HTTPRouteCount:        3,
+			SecretCount:           4,
+			ServiceCount:          5,
+			EndpointCount:         6,
+			GRPCRouteCount:        7,
+			BackendTLSPolicyCount: 8,
 		},
 		NGFReplicaCount: 3,
 	}
@@ -53,13 +55,14 @@ func TestDataAttributes(t *testing.T) {
 		attribute.Int64("SecretCount", 4),
 		attribute.Int64("ServiceCount", 5),
 		attribute.Int64("EndpointCount", 6),
+		attribute.Int64("GRPCRouteCount", 7),
+		attribute.Int64("BackendTLSPolicyCount", 8),
 		attribute.Int64("NGFReplicaCount", 3),
 	}
 
 	result := data.Attributes()
 
 	g := NewWithT(t)
-
 	g.Expect(result).To(Equal(expected))
 }
 
@@ -85,6 +88,8 @@ func TestDataAttributesWithEmptyData(t *testing.T) {
 		attribute.Int64("SecretCount", 0),
 		attribute.Int64("ServiceCount", 0),
 		attribute.Int64("EndpointCount", 0),
+		attribute.Int64("GRPCRouteCount", 0),
+		attribute.Int64("BackendTLSPolicyCount", 0),
 		attribute.Int64("NGFReplicaCount", 0),
 	}
 

internal/mode/static/telemetry/ngfresourcecounts_attributes_generated.go

@@ -21,6 +21,8 @@ func (d *NGFResourceCounts) Attributes() []attribute.KeyValue {
 	attrs = append(attrs, attribute.Int64("SecretCount", d.SecretCount))
 	attrs = append(attrs, attribute.Int64("ServiceCount", d.ServiceCount))
 	attrs = append(attrs, attribute.Int64("EndpointCount", d.EndpointCount))
+	attrs = append(attrs, attribute.Int64("GRPCRouteCount", d.GRPCRouteCount))
+	attrs = append(attrs, attribute.Int64("BackendTLSPolicyCount", d.BackendTLSPolicyCount))
 
 
 	return attrs

site/content/overview/product-telemetry.md

@@ -26,7 +26,7 @@ Telemetry data is collected once every 24 hours and sent to a service managed by
 - **Deployment Replica Count:** the count of NGINX Gateway Fabric Pods.
 - **Image Build Source:** whether the image was built by GitHub or locally (values are `gha`, `local`, or `unknown`). The source repository of the images is **not** collected.
 - **Deployment Flags:** a list of NGINX Gateway Fabric Deployment flags that are specified by a user. The actual values of non-boolean flags are **not** collected; we only record that they are either `true` or `false` for boolean flags and `default` or `user-defined` for the rest.
-- **Count of Resources:** the total count of resources related to NGINX Gateway Fabric. This includes `GatewayClasses`, `Gateways`, `HTTPRoutes`, `Secrets`, `Services`, and `Endpoints`. The data within these resources is **not** collected.
+- **Count of Resources:** the total count of resources related to NGINX Gateway Fabric. This includes `GatewayClasses`, `Gateways`, `HTTPRoutes`,`GRPCRoutes`, `Secrets`, `Services`, `BackendTLSPolicies`, and `Endpoints`. The data within these resources is **not** collected.
 
 This data is used to identify the following information:
 

tests/suite/telemetry_test.go

@@ -95,6 +95,8 @@ var _ = Describe("Telemetry test with OTel collector", Label("telemetry"), func(
 				"SecretCount: Int(0)",
 				"ServiceCount: Int(0)",
 				"EndpointCount: Int(0)",
+				"GRPCRouteCount: Int(0)",
+				"BackendTLSPolicyCount: Int(0)",
 				"NGFReplicaCount: Int(1)",
 			},
 		)