feat(conformance): Add HTTPRouteMultipleGatewaysDifferentPools test

conformance/conformance.go

@@ -43,8 +43,8 @@ import (
 	"sigs.k8s.io/yaml"
 
 	// Import necessary types and utilities from the core Gateway API conformance suite.
-	gatewayv1 "sigs.k8s.io/gateway-api/apis/v1"            // Import core Gateway API types
-	confapis "sigs.k8s.io/gateway-api/conformance/apis/v1" // Report struct definition
+	gatewayv1 "sigs.k8s.io/gateway-api/apis/v1"
+	confapis "sigs.k8s.io/gateway-api/conformance/apis/v1"
 	confconfig "sigs.k8s.io/gateway-api/conformance/utils/config"
 	confflags "sigs.k8s.io/gateway-api/conformance/utils/flags"
 	apikubernetes "sigs.k8s.io/gateway-api/conformance/utils/kubernetes"
@@ -68,8 +68,9 @@ import (
 
 // Constants for the shared Gateway
 const (
-	SharedGatewayName      = "conformance-gateway"       // Name of the Gateway in manifests.yaml
-	SharedGatewayNamespace = "gateway-conformance-infra" // Namespace of the Gateway
+	PrimaryGatewayName     = "conformance-gateway"
+	SharedGatewayNamespace = "gateway-conformance-infra"
+	SecondaryGatewayName   = "conformance-secondary-gateway"
 )
 
 // GatewayLayerProfileName defines the name for the conformance profile that tests
@@ -221,10 +222,13 @@ func RunConformanceWithOptions(t *testing.T, opts confsuite.ConformanceOptions)
 
 	cSuite.Setup(t, tests.ConformanceTests)
 
-	sharedGwNN := types.NamespacedName{Name: SharedGatewayName, Namespace: SharedGatewayNamespace}
+	sharedGwNN := types.NamespacedName{Name: PrimaryGatewayName, Namespace: SharedGatewayNamespace}
+	secondaryGwNN := types.NamespacedName{Name: SecondaryGatewayName, Namespace: SharedGatewayNamespace}
 
-	// Validate Gateway setup.
+	// Validate Gateway setup for both Gateways.
 	ensureGatewayAvailableAndReady(t, cSuite.Client, opts, sharedGwNN)
+	ensureGatewayAvailableAndReady(t, cSuite.Client, opts, secondaryGwNN)
+
 	t.Log("Running Inference Extension conformance tests against all registered tests")
 	err = cSuite.Run(t, tests.ConformanceTests)
 	require.NoError(t, err, "error running conformance tests")

conformance/resources/manifests/manifests.yaml

@@ -4,57 +4,45 @@
 # individual test files or other resource directories (e.g., sample_backends).
 
 ---
-# Namespace for core infrastructure like Gateways.
 apiVersion: v1
 kind: Namespace
 metadata:
   name: gateway-conformance-infra
   labels:
     gateway-conformance: infra
 ---
-# Namespace for application backends (potentially simulating model servers
-# or where InferencePools might reside in some tests).
 apiVersion: v1
 kind: Namespace
 metadata:
   name: gateway-conformance-app-backend
   labels:
     gateway-conformance: backend
 ---
-# Namespace for simple web server backends. This is expected by
-# the upstream conformance suite's Setup method.
 apiVersion: v1
 kind: Namespace
 metadata:
   name: gateway-conformance-web-backend
   labels:
     gateway-conformance: web-backend
 ---
-# A basic Gateway resource that allows HTTPRoutes from the same namespace.
-# Tests can use this as a parent reference for routes that target InferencePools.
 apiVersion: gateway.networking.k8s.io/v1
 kind: Gateway
 metadata:
   name: conformance-gateway
   namespace: gateway-conformance-infra
 spec:
-  # The conformance suite runner will replace this placeholder
-  # with the actual GatewayClass name provided via flags.
   gatewayClassName: "{GATEWAY_CLASS_NAME}"
   listeners:
-  - name: http # Standard listener name
+  - name: http
     port: 80
     protocol: HTTP
     allowedRoutes:
       namespaces:
         from: All
       kinds:
-      # Allows HTTPRoutes to attach, which can then reference InferencePools.
       - group: gateway.networking.k8s.io
         kind: HTTPRoute
 ---
-# --- Conformance Secondary Gateway Definition ---
-# A second generic Gateway resource for tests requiring multiple Gateways.
 apiVersion: gateway.networking.k8s.io/v1
 kind: Gateway
 metadata:
@@ -66,7 +54,95 @@ spec:
   - name: http
     port: 80
     protocol: HTTP
-    hostname: "secondary.example.com" # Distinct hostname to differentiate from conformance-gateway
+    hostname: "secondary.example.com"
     allowedRoutes:
       namespaces:
         from: All
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: inference-model-1-deployment
+  namespace: gateway-conformance-app-backend
+  labels:
+    app: inference-model-1
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: inference-model-1
+  template:
+    metadata:
+      labels:
+        app: inference-model-1
+    spec:
+      containers:
+      - name: echo-basic-1
+        image: gcr.io/k8s-staging-gateway-api/echo-basic:v20240412-v1.0.0-394-g40c666fd
+        ports:
+        - name: http
+          containerPort: 3000
+        readinessProbe:
+          httpGet:
+            path: /
+            port: 3000
+          initialDelaySeconds: 3
+          periodSeconds: 5
+          failureThreshold: 2
+        env:
+        - name: POD_NAME
+          valueFrom:
+            fieldRef:
+              fieldPath: metadata.name
+        - name: NAMESPACE
+          valueFrom:
+            fieldRef:
+              fieldPath: metadata.namespace
+        - name: POD_IP
+          valueFrom:
+            fieldRef:
+              fieldPath: status.podIP
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: inference-model-2-deployment
+  namespace: gateway-conformance-app-backend
+  labels:
+    app: inference-model-2
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: inference-model-2
+  template:
+    metadata:
+      labels:
+        app: inference-model-2
+    spec:
+      containers:
+      - name: echo-basic-2
+        image: gcr.io/k8s-staging-gateway-api/echo-basic:v20240412-v1.0.0-394-g40c666fd
+        ports:
+        - name: http
+          containerPort: 3000
+        readinessProbe:
+          httpGet:
+            path: /
+            port: 3000
+          initialDelaySeconds: 3
+          periodSeconds: 5
+          failureThreshold: 2
+        env:
+        - name: POD_NAME
+          valueFrom:
+            fieldRef:
+              fieldPath: metadata.name
+        - name: NAMESPACE
+          valueFrom:
+            fieldRef:
+              fieldPath: metadata.namespace
+        - name: POD_IP
+          valueFrom:
+            fieldRef:
+              fieldPath: status.podIP

conformance/tests/basic/httproute_multiple_gateways_different_pools.go

@@ -0,0 +1,98 @@
+/*
+Copyright 2025 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package basic
+
+import (
+	"testing"
+
+	"k8s.io/apimachinery/pkg/labels"
+	"k8s.io/apimachinery/pkg/types"
+	"sigs.k8s.io/gateway-api/conformance/utils/suite"
+
+	"sigs.k8s.io/gateway-api-inference-extension/conformance/tests"
+	k8sutils "sigs.k8s.io/gateway-api-inference-extension/conformance/utils/kubernetes"
+	trafficutils "sigs.k8s.io/gateway-api-inference-extension/conformance/utils/traffic"
+)
+
+func init() {
+	tests.ConformanceTests = append(tests.ConformanceTests, HTTPRouteMultipleGatewaysDifferentPools)
+}
+
+var HTTPRouteMultipleGatewaysDifferentPools = suite.ConformanceTest{
+	ShortName:   "HTTPRouteMultipleGatewaysDifferentPools",
+	Description: "Validates two HTTPRoutes on different Gateways successfully referencing different InferencePools and routes traffic accordingly.",
+	Manifests:   []string{"tests/basic/httproute_multiple_gateways_different_pools.yaml"},
+	Test: func(t *testing.T, s *suite.ConformanceTestSuite) {
+		const (
+			appBackendNamespace = "gateway-conformance-app-backend"
+			infraNamespace      = "gateway-conformance-infra"
+			backendAppLabelKey  = "app"
+
+			primaryGatewayName    = "conformance-gateway"
+			routeForPrimaryGWName = "route-for-primary-gateway"
+			primaryPoolName       = "primary-pool"
+			primaryBackendLabel   = "inference-model-1"
+			primaryRoutePath      = "/test-primary-gateway"
+
+			secondaryGatewayName    = "conformance-secondary-gateway"
+			routeForSecondaryGWName = "route-for-secondary-gateway"
+			secondaryPoolName       = "secondary-pool"
+			secondaryBackendLabel   = "inference-model-2"
+			secondaryRoutePath      = "/test-secondary-gateway"
+			secondaryRouteHostname  = "secondary.example.com"
+		)
+
+		routeForPrimaryGWNN := types.NamespacedName{Name: routeForPrimaryGWName, Namespace: appBackendNamespace}
+		routeForSecondaryGWNN := types.NamespacedName{Name: routeForSecondaryGWName, Namespace: appBackendNamespace}
+		primaryPoolNN := types.NamespacedName{Name: primaryPoolName, Namespace: appBackendNamespace}
+		secondaryPoolNN := types.NamespacedName{Name: secondaryPoolName, Namespace: appBackendNamespace}
+		primaryGatewayNN := types.NamespacedName{Name: primaryGatewayName, Namespace: infraNamespace}
+		secondaryGatewayNN := types.NamespacedName{Name: secondaryGatewayName, Namespace: infraNamespace}
+
+		t.Run("Primary HTTPRoute, InferencePool, and Gateway path: verify status and traffic", func(t *testing.T) {
+			k8sutils.HTTPRouteAndInferencePoolMustBeAcceptedAndRouteAccepted(
+				t,
+				s.Client,
+				routeForPrimaryGWNN,
+				primaryGatewayNN,
+				primaryPoolNN,
+			)
+
+			primaryGwAddr := k8sutils.GetGatewayEndpoint(t, s.Client, s.TimeoutConfig, primaryGatewayNN)
+			primarySelector := labels.SelectorFromSet(labels.Set{backendAppLabelKey: primaryBackendLabel})
+			primaryPod := k8sutils.GetPod(t, s.Client, appBackendNamespace, primarySelector, s.TimeoutConfig.RequestTimeout)
+
+			trafficutils.MakeRequestAndExpectResponseFromPod(t, s.RoundTripper, s.TimeoutConfig, primaryGwAddr, primaryRoutePath, primaryPod)
+		})
+
+		t.Run("Secondary HTTPRoute, InferencePool, and Gateway path: verify status and traffic", func(t *testing.T) {
+			k8sutils.HTTPRouteAndInferencePoolMustBeAcceptedAndRouteAccepted(
+				t,
+				s.Client,
+				routeForSecondaryGWNN,
+				secondaryGatewayNN,
+				secondaryPoolNN,
+			)
+
+			secondaryGwAddr := k8sutils.GetGatewayEndpoint(t, s.Client, s.TimeoutConfig, secondaryGatewayNN)
+			secondarySelector := labels.SelectorFromSet(labels.Set{backendAppLabelKey: secondaryBackendLabel})
+			secondaryPod := k8sutils.GetPod(t, s.Client, appBackendNamespace, secondarySelector, s.TimeoutConfig.RequestTimeout)
+
+			trafficutils.MakeRequestAndExpectResponseFromPodWithHostname(t, s.RoundTripper, s.TimeoutConfig, secondaryGwAddr, secondaryRoutePath, secondaryRouteHostname, secondaryPod)
+		})
+	},
+}