Add NGF telemetry data for TLSRoute (#2387)

Problem: NGF did not support telemetry for TLSRoute.

Solution: Add telemetry collection of TLSRoute.

Testing: Added unit tests for the updated code.

Co-authored-by: Sarthak Agrawal <s.agrawal@f5.com>

Author: bjee19

internal/mode/static/telemetry/collector.go

@@ -62,6 +62,8 @@ type NGFResourceCounts struct {
 	GatewayClassCount int64
 	// HTTPRouteCount is the number of relevant HTTPRoutes.
 	HTTPRouteCount int64
+	// TLSRouteCount is the number of relevant TLSRoutes.
+	TLSRouteCount int64
 	// SecretCount is the number of relevant Secrets.
 	SecretCount int64
 	// ServiceCount is the number of relevant Services.
@@ -188,7 +190,11 @@ func collectGraphResourceCount(
 		ngfResourceCounts.GatewayCount++
 	}
 
-	ngfResourceCounts.HTTPRouteCount, ngfResourceCounts.GRPCRouteCount = computeRouteCount(g.Routes)
+	routeCounts := computeRouteCount(g.Routes, g.L4Routes)
+	ngfResourceCounts.HTTPRouteCount = routeCounts.HTTPRouteCount
+	ngfResourceCounts.GRPCRouteCount = routeCounts.GRPCRouteCount
+	ngfResourceCounts.TLSRouteCount = routeCounts.TLSRouteCount
+
 	ngfResourceCounts.SecretCount = int64(len(g.ReferencedSecrets))
 	ngfResourceCounts.ServiceCount = int64(len(g.ReferencedServices))
 
@@ -224,7 +230,19 @@ func collectGraphResourceCount(
 	return ngfResourceCounts, nil
 }
 
-func computeRouteCount(routes map[graph.RouteKey]*graph.L7Route) (httpRouteCount, grpcRouteCount int64) {
+type RouteCounts struct {
+	HTTPRouteCount int64
+	GRPCRouteCount int64
+	TLSRouteCount  int64
+}
+
+func computeRouteCount(
+	routes map[graph.RouteKey]*graph.L7Route,
+	l4routes map[graph.L4RouteKey]*graph.L4Route,
+) RouteCounts {
+	httpRouteCount := int64(0)
+	grpcRouteCount := int64(0)
+
 	for _, r := range routes {
 		if r.RouteType == graph.RouteTypeHTTP {
 			httpRouteCount = httpRouteCount + 1
@@ -233,7 +251,12 @@ func computeRouteCount(routes map[graph.RouteKey]*graph.L7Route) (httpRouteCount
 			grpcRouteCount = grpcRouteCount + 1
 		}
 	}
-	return httpRouteCount, grpcRouteCount
+
+	return RouteCounts{
+		HTTPRouteCount: httpRouteCount,
+		GRPCRouteCount: grpcRouteCount,
+		TLSRouteCount:  int64(len(l4routes)),
+	}
 }
 
 func getPodReplicaSet(

internal/mode/static/telemetry/collector_test.go

@@ -287,6 +287,11 @@ var _ = Describe("Collector", Ordered, func() {
 						{NamespacedName: types.NamespacedName{Namespace: "test", Name: "gr-1"}}: {RouteType: graph.RouteTypeGRPC},
 						{NamespacedName: types.NamespacedName{Namespace: "test", Name: "gr-2"}}: {RouteType: graph.RouteTypeGRPC},
 					},
+					L4Routes: map[graph.L4RouteKey]*graph.L4Route{
+						{NamespacedName: types.NamespacedName{Namespace: "test", Name: "tr-1"}}: {},
+						{NamespacedName: types.NamespacedName{Namespace: "test", Name: "tr-2"}}: {},
+						{NamespacedName: types.NamespacedName{Namespace: "test", Name: "tr-3"}}: {},
+					},
 					ReferencedSecrets: map[types.NamespacedName]*graph.Secret{
 						client.ObjectKeyFromObject(secret1): {
 							Source: secret1,
@@ -366,6 +371,7 @@ var _ = Describe("Collector", Ordered, func() {
 					GatewayCount:                             3,
 					GatewayClassCount:                        3,
 					HTTPRouteCount:                           3,
+					TLSRouteCount:                            3,
 					SecretCount:                              3,
 					ServiceCount:                             3,
 					EndpointCount:                            4,
@@ -512,6 +518,9 @@ var _ = Describe("Collector", Ordered, func() {
 				Routes: map[graph.RouteKey]*graph.L7Route{
 					{NamespacedName: types.NamespacedName{Namespace: "test", Name: "hr-1"}}: {RouteType: graph.RouteTypeHTTP},
 				},
+				L4Routes: map[graph.L4RouteKey]*graph.L4Route{
+					{NamespacedName: types.NamespacedName{Namespace: "test", Name: "tr-1"}}: {},
+				},
 				ReferencedSecrets: map[types.NamespacedName]*graph.Secret{
 					client.ObjectKeyFromObject(secret): {
 						Source: secret,
@@ -604,6 +613,7 @@ var _ = Describe("Collector", Ordered, func() {
 					GatewayCount:                             1,
 					GatewayClassCount:                        1,
 					HTTPRouteCount:                           1,
+					TLSRouteCount:                            1,
 					SecretCount:                              1,
 					ServiceCount:                             1,
 					EndpointCount:                            1,
@@ -626,6 +636,7 @@ var _ = Describe("Collector", Ordered, func() {
 					GatewayCount:                             0,
 					GatewayClassCount:                        0,
 					HTTPRouteCount:                           0,
+					TLSRouteCount:                            0,
 					SecretCount:                              0,
 					ServiceCount:                             0,
 					EndpointCount:                            0,

internal/mode/static/telemetry/data.avdl

@@ -54,6 +54,9 @@ Each value is either 'true' or 'false' for boolean flags and 'default' or 'user-
 		/** HTTPRouteCount is the number of relevant HTTPRoutes. */
 		long? HTTPRouteCount = null;
 
+		/** TLSRouteCount is the number of relevant TLSRoutes. */
+		long? TLSRouteCount = null;
+		
 		/** SecretCount is the number of relevant Secrets. */
 		long? SecretCount = null;
 

internal/mode/static/telemetry/data_test.go

@@ -31,6 +31,7 @@ func TestDataAttributes(t *testing.T) {
 			ServiceCount:                             5,
 			EndpointCount:                            6,
 			GRPCRouteCount:                           7,
+			TLSRouteCount:                            5,
 			BackendTLSPolicyCount:                    8,
 			GatewayAttachedClientSettingsPolicyCount: 9,
 			RouteAttachedClientSettingsPolicyCount:   10,
@@ -56,6 +57,7 @@ func TestDataAttributes(t *testing.T) {
 		attribute.Int64("GatewayCount", 1),
 		attribute.Int64("GatewayClassCount", 2),
 		attribute.Int64("HTTPRouteCount", 3),
+		attribute.Int64("TLSRouteCount", 5),
 		attribute.Int64("SecretCount", 4),
 		attribute.Int64("ServiceCount", 5),
 		attribute.Int64("EndpointCount", 6),
@@ -93,6 +95,7 @@ func TestDataAttributesWithEmptyData(t *testing.T) {
 		attribute.Int64("GatewayCount", 0),
 		attribute.Int64("GatewayClassCount", 0),
 		attribute.Int64("HTTPRouteCount", 0),
+		attribute.Int64("TLSRouteCount", 0),
 		attribute.Int64("SecretCount", 0),
 		attribute.Int64("ServiceCount", 0),
 		attribute.Int64("EndpointCount", 0),

internal/mode/static/telemetry/ngfresourcecounts_attributes_generated.go

@@ -15,6 +15,7 @@ func (d *NGFResourceCounts) Attributes() []attribute.KeyValue {
 	attrs = append(attrs, attribute.Int64("GatewayCount", d.GatewayCount))
 	attrs = append(attrs, attribute.Int64("GatewayClassCount", d.GatewayClassCount))
 	attrs = append(attrs, attribute.Int64("HTTPRouteCount", d.HTTPRouteCount))
+	attrs = append(attrs, attribute.Int64("TLSRouteCount", d.TLSRouteCount))
 	attrs = append(attrs, attribute.Int64("SecretCount", d.SecretCount))
 	attrs = append(attrs, attribute.Int64("ServiceCount", d.ServiceCount))
 	attrs = append(attrs, attribute.Int64("EndpointCount", d.EndpointCount))

site/content/overview/product-telemetry.md

@@ -27,7 +27,7 @@ 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`,`GRPCRoutes`, `Secrets`, `Services`, `BackendTLSPolicies`, `ClientSettingsPolicies`, `NginxProxies`, `ObservabilityPolicies`, 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`, `TLSRoutes`, `Secrets`, `Services`, `BackendTLSPolicies`, `ClientSettingsPolicies`, `NginxProxies`, `ObservabilityPolicies`, and `Endpoints`. The data within these resources is **not** collected.
 
 This data is used to identify the following information:
 

tests/suite/telemetry_test.go

@@ -75,6 +75,7 @@ var _ = Describe("Telemetry test with OTel collector", Label("telemetry"), func(
 				"GatewayCount: Int(0)",
 				"GatewayClassCount: Int(1)",
 				"HTTPRouteCount: Int(0)",
+				"TLSRouteCount: Int(0)",
 				"SecretCount: Int(0)",
 				"ServiceCount: Int(0)",
 				"EndpointCount: Int(0)",