feat: support eureka registry (#464)

Signed-off-by: charlie <qianglin98@qq.com>

test/e2e/conformance/base/manifests.yaml

@@ -459,4 +459,109 @@ spec:
           scheme: HTTP
         initialDelaySeconds: 20
         periodSeconds: 20
+---
+# Eureka service registry
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: eureka-cm
+  namespace: higress-conformance-app-backend
+data:
+  # if you want to deploy n instances of eureka cluster,
+  # you should set eureka_service_address: http://eureka-0.eureka:8761/eureka,...,http://eureka-(n-1).eureka:8761/eureka
+  eureka_service_address: "http://eureka-0.eureka.higress-conformance-app-backend.svc:8761/eureka"
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: eureka
+  namespace: higress-conformance-app-backend
+  labels:
+    app: eureka
+spec:
+  clusterIP: None
+  ports:
+    - port: 8761
+      name: eureka
+  selector:
+    app: eureka
+---
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: eureka
+  namespace: higress-conformance-app-backend
+spec:
+  serviceName: eureka
+  # n instances
+  replicas: 1
+  selector:
+    matchLabels:
+      app: eureka
+  template:
+    metadata:
+      labels:
+        app: eureka
+    spec:
+      containers:
+        - name: eureka
+          image: bitinit/eureka
+          ports:
+            - containerPort: 8761
+              name: http
+              protocol: TCP
+          resources:
+            requests:
+              memory: "500Mi"
+              cpu: "500m"
+          env:
+            - name: EUREKA_SERVER_ADDRESS
+              valueFrom:
+                configMapKeyRef:
+                  name: eureka-cm
+                  key: eureka_service_address
+            - name: ENVIRONMENT
+              value: "prod"
+            - name: JVM_OPTS
+              value: "-Xms1g -Xmx1g"
+          livenessProbe:
+            httpGet:
+              path: /
+              port: 8761
+            initialDelaySeconds: 30
+            periodSeconds: 10
+          readinessProbe:
+            httpGet:
+              path: /
+              port: 8761
+            initialDelaySeconds: 30
+            periodSeconds: 10
+---
+apiVersion: v1
+kind: Pod
+metadata:
+  name: eureka-registry-provider
+  namespace: higress-conformance-app-backend
+spec:
+  containers:
+    - name: eureka-registry-provider
+      image: charlie1380/eureka-registry-provider:v0.3.0
+      env:
+        - name: EUREKA_SERVER_ADDRESS
+          valueFrom:
+            configMapKeyRef:
+              name: eureka-cm
+              key: eureka_service_address
+      ports:
+        - containerPort: 8888
+          name: http
+          protocol: TCP
+      readinessProbe:
+        failureThreshold: 5
+        httpGet:
+          path: /healthz
+          port: 8888
+          scheme: HTTP
+        periodSeconds: 1
 

test/e2e/conformance/tests/httproute-eureka-registry.go

@@ -0,0 +1,60 @@
+// Copyright (c) 2022 Alibaba Group Holding Ltd.
+//
+// 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 tests
+
+import (
+	"testing"
+	"time"
+
+	"github.com/alibaba/higress/test/e2e/conformance/utils/http"
+	"github.com/alibaba/higress/test/e2e/conformance/utils/suite"
+)
+
+func init() {
+	HigressConformanceTests = append(HigressConformanceTests, HTTPRouteEurekaRegistry)
+}
+
+var HTTPRouteEurekaRegistry = suite.ConformanceTest{
+	ShortName:   "HTTPRouteEurekaRegistry",
+	Description: "The Ingress in the higress-conformance-infra namespace uses the eureka service registry.",
+	Manifests:   []string{"tests/httproute-eureka-registry.yaml"},
+	Test: func(t *testing.T, suite *suite.ConformanceTestSuite) {
+		testcases := []http.Assertion{
+			{
+				Request: http.AssertionRequest{
+					ActualRequest: http.Request{
+						Host:   "foo.com",
+						Path:   "/healthz",
+						Method: "GET",
+					},
+				},
+				Response: http.AssertionResponse{
+					ExpectedResponseNoRequest: true,
+					ExpectedResponse: http.Response{
+						StatusCode: 200,
+					},
+				},
+			},
+		}
+		timeoutConfig := suite.TimeoutConfig
+		// it may take more time
+		timeoutConfig.MaxTimeToConsistency = 120 * time.Second
+		t.Run("HTTPRoute Eureka Registry", func(t *testing.T) {
+			for _, testcase := range testcases {
+				http.MakeRequestAndExpectEventuallyConsistentResponse(t, suite.RoundTripper, timeoutConfig, suite.GatewayAddress, testcase)
+			}
+		})
+	},
+}

test/e2e/conformance/tests/httproute-eureka-registry.yaml

@@ -0,0 +1,46 @@
+# Copyright (c) 2022 Alibaba Group Holding Ltd.
+#
+# 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.
+
+apiVersion: networking.higress.io/v1
+kind: McpBridge
+metadata:
+  name: default
+  namespace: higress-system
+spec:
+  registries:
+    - domain: eureka.higress-conformance-app-backend.svc.cluster.local
+      name: eureka
+      port: 8761
+      type: eureka
+---
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  annotations:
+    higress.io/destination: EUREKA-REGISTRY-PROVIDER.eureka
+  name: httproute-eureka-ingress
+  namespace: higress-system
+spec:
+  ingressClassName: higress
+  rules:
+    - host: "foo.com"
+      http:
+        paths:
+          - pathType: Prefix
+            path: /
+            backend:
+              resource:
+                apiGroup: networking.higress.io
+                kind: McpBridge
+                name: default

test/e2e/e2e_test.go

@@ -97,6 +97,7 @@ func TestHigressConformanceTests(t *testing.T) {
 			tests.HTTPRouteFullPathRegex,
 			tests.HTTPRouteHttp2Rpc,
 			tests.HTTPRouteConsulHttpBin,
+			tests.HTTPRouteEurekaRegistry,
 		}
 	}