add xDS router and lb integration test: demo and test case

sermant-integration-tests/xds-service-test/config/plugins.yaml

@@ -1,2 +1,3 @@
 plugins:
   - xds-service-discovery
+  - service-router

sermant-integration-tests/xds-service-test/pom.xml

@@ -16,11 +16,25 @@
         <maven.compiler.source>8</maven.compiler.source>
         <maven.compiler.target>8</maven.compiler.target>
         <spring.version>2.7.17</spring.version>
+        <springcloud.version>2021.0.3</springcloud.version>
     </properties>
 
+    <dependencyManagement>
+        <dependencies>
+            <dependency>
+                <groupId>org.springframework.cloud</groupId>
+                <artifactId>spring-cloud-dependencies</artifactId>
+                <version>${springcloud.version}</version>
+                <type>pom</type>
+                <scope>import</scope>
+            </dependency>
+        </dependencies>
+    </dependencyManagement>
+
     <modules>
         <module>spring-client</module>
         <module>spring-server</module>
         <module>xds-service-discovery</module>
+        <module>spring-cloud-client</module>
     </modules>
 </project>

sermant-integration-tests/xds-service-test/product/spring-cloud-client/Dockerfile

@@ -0,0 +1,7 @@
+FROM openjdk:8
+WORKDIR /home
+COPY agent/ /home/agent
+COPY spring-cloud-client.jar /home/spring-cloud-client.jar
+COPY start.sh /home
+RUN chmod -R 777 /home
+ENTRYPOINT ["sh", "/home/start.sh"]

sermant-integration-tests/xds-service-test/product/spring-cloud-client/start.sh

@@ -0,0 +1 @@
+exec java -jar /home/spring-cloud-client.jar

sermant-integration-tests/xds-service-test/script/router/deployment/spring-client-sermant-xds-router.yaml

@@ -0,0 +1,47 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: spring-client
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: spring-client
+  template:
+    metadata:
+      labels:
+        app: spring-client
+    spec:
+      containers:
+      - name: spring-client
+        image: spring-client:1.0.0
+        imagePullPolicy: Never
+        ports:
+        - containerPort: 8080
+        env:
+        - name: agent_service_dynamic_config_enable
+          value: "false"
+        - name: agent_service_xds_service_enable
+          value: "true"
+        - name: router_plugin_enabled_xds_route
+          value: "true"
+        - name: xds_service_discovery_enabled
+          value: "false"
+        - name: JAVA_TOOL_OPTIONS
+          value: "-javaagent:/home/agent/sermant-agent.jar"
+      imagePullSecrets:
+        - name: default-secret
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: spring-client
+spec:
+  type: ClusterIP
+  ports:
+  - port: 8080
+    targetPort: 8080
+    protocol: TCP
+    name: http
+  selector:
+    app: spring-client

sermant-integration-tests/xds-service-test/script/router/deployment/spring-cloud-client-sermant-xds-router.yaml

@@ -0,0 +1,47 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: spring-cloud-client
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: spring-cloud-client
+  template:
+    metadata:
+      labels:
+        app: spring-cloud-client
+    spec:
+      containers:
+      - name: spring-cloud-client
+        image: spring-cloud-client:1.0.0
+        imagePullPolicy: Never
+        ports:
+        - containerPort: 8082
+        env:
+        - name: agent_service_dynamic_config_enable
+          value: "false"
+        - name: agent_service_xds_service_enable
+          value: "true"
+        - name: router_plugin_enabled-xds-route
+          value: "true"
+        - name: ZOOKEEPER_IP
+          value: "zookeeper.default.svc.cluster.local"
+        - name: JAVA_TOOL_OPTIONS
+          value: "-javaagent:/home/agent/sermant-agent.jar"
+      imagePullSecrets:
+        - name: default-secret
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: spring-cloud-client
+spec:
+  type: ClusterIP
+  ports:
+  - port: 8082
+    targetPort: 8082
+    protocol: TCP
+    name: http
+  selector:
+    app: spring-cloud-client

sermant-integration-tests/xds-service-test/script/router/deployment/spring-server.yaml

@@ -0,0 +1,77 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: spring-server-v1
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: spring-server
+      version: v1
+  template:
+    metadata:
+      labels:
+        app: spring-server
+        version: v1
+    spec:
+      containers:
+      - name: spring-server
+        image: spring-server:1.0.0
+        imagePullPolicy: Never
+        ports:
+        - containerPort: 8081
+        env:
+        - name: SERVER_VERSION
+          value: "v1"
+        - name: ZOOKEEPER_IP
+          value: "zookeeper.default.svc.cluster.local"
+        - name: ZOOKEEPER_ENABLED
+          value: "true"
+      imagePullSecrets:
+        - name: default-secret
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: spring-server-v2
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: spring-server
+      version: v2
+  template:
+    metadata:
+      labels:
+        app: spring-server
+        version: v2
+    spec:
+      containers:
+        - name: spring-server
+          image: spring-server:1.0.0
+          imagePullPolicy: Never
+          ports:
+            - containerPort: 8081
+          env:
+          - name: SERVER_VERSION
+            value: "v2"
+          - name: ZOOKEEPER_IP
+            value: "zookeeper.default.svc.cluster.local"
+          - name: ZOOKEEPER_ENABLED
+            value: "true"
+      imagePullSecrets:
+        - name: default-secret
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: spring-server
+spec:
+  type: ClusterIP
+  ports:
+  - port: 8081
+    targetPort: 8081
+    protocol: TCP
+    name: http
+  selector:
+    app: spring-server

sermant-integration-tests/xds-service-test/script/router/router-rule/spring-server-destination-random.yaml

@@ -0,0 +1,16 @@
+apiVersion: networking.istio.io/v1alpha3
+kind: DestinationRule
+metadata:
+  name: spring-server-destinationrule-random
+spec:
+  host: spring-server.default.svc.cluster.local
+  trafficPolicy:
+    loadBalancer:
+      simple: RANDOM
+  subsets:
+  - name: v1
+    labels:
+      version: v1
+  - name: v2
+    labels:
+      version: v2

sermant-integration-tests/xds-service-test/script/router/router-rule/spring-server-destination-robin.yaml

@@ -0,0 +1,16 @@
+apiVersion: networking.istio.io/v1alpha3
+kind: DestinationRule
+metadata:
+  name: spring-server-destinationrule-robin
+spec:
+  host: spring-server.default.svc.cluster.local
+  trafficPolicy:
+    loadBalancer:
+      simple: ROUND_ROBIN
+  subsets:
+  - name: v1
+    labels:
+      version: v1
+  - name: v2
+    labels:
+      version: v2

sermant-integration-tests/xds-service-test/script/router/router-rule/spring-server-virtureservice.yaml

@@ -0,0 +1,56 @@
+apiVersion: networking.istio.io/v1alpha3
+kind: VirtualService
+metadata:
+  name: spring-server-virtualservice
+spec:
+  hosts:
+  - spring-server
+  http:
+  - name: "v1-routes"
+    match:
+    - headers:
+        version:
+          exact: v1
+      uri:
+        exact: /router
+      ignoreUriCase: false
+    route:
+    - destination:
+        host: spring-server
+        subset: v1
+        port:
+          number: 8081
+  - name: "v2-routes"
+    match:
+      - headers:
+          version:
+            exact: v2
+        uri:
+          prefix: /
+        ignoreUriCase: false
+    route:
+      - destination:
+          host: spring-server
+          port:
+            number: 8081
+  - name: "base-route"
+    match:
+      - headers:
+          version:
+            exact: base
+        uri:
+          exact: /router
+        ignoreUriCase: false
+    route:
+    - destination:
+        host: spring-server
+        subset: v1
+        port:
+          number: 8081
+      weight: 0
+    - destination:
+        host: spring-server
+        subset: v2
+        port:
+          number: 8081
+      weight: 100

sermant-integration-tests/xds-service-test/spring-client/pom.xml

@@ -15,6 +15,7 @@
         <maven.compiler.source>8</maven.compiler.source>
         <maven.compiler.target>8</maven.compiler.target>
         <httpclient.version>4.5.13</httpclient.version>
+        <okhttp2.version>2.7.5</okhttp2.version>
     </properties>
 
     <dependencies>
@@ -28,6 +29,11 @@
             <artifactId>httpclient</artifactId>
             <version>${httpclient.version}</version>
         </dependency>
+        <dependency>
+            <groupId>com.squareup.okhttp</groupId>
+            <artifactId>okhttp</artifactId>
+            <version>${okhttp2.version}</version>
+        </dependency>
     </dependencies>
 
     <build>