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add circuitbreaker example (#179)
Co-authored-by: fredrikliu <[email protected]>
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‎polaris-agent-examples/spring-cloud-plugins-examples/spring-cloud-hoxton-examples/quickstart-examples/quickstart-callee-service-a/Dockerfile

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FROM alpine:3.19.1
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ARG file_name
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ARG java_version
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COPY ./target/${file_name} /app/main.jar
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WORKDIR /app
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RUN sed -i 's!http://dl-cdn.alpinelinux.org/!https://mirrors.tencent.com/!g' /etc/apk/repositories
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RUN set -eux && \
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apk add openjdk${java_version} && \
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apk add bind-tools && \
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apk add busybox-extras && \
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apk add findutils && \
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apk add tcpdump && \
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apk add tzdata && \
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apk add curl && \
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apk add bash && \
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cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime && \
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echo "Asia/Shanghai" > /etc/timezone && \
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date
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RUN chmod 777 /app/
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RUN ls -la /app/
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ENTRYPOINT ["java", "-jar", "/app/main.jar"]

‎polaris-agent-examples/spring-cloud-plugins-examples/spring-cloud-hoxton-examples/quickstart-examples/quickstart-callee-service-a/deployment.yaml

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---
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apiVersion: apps/v1
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kind: Deployment
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metadata:
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labels:
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app: hoxton-callee-a
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name: hoxton-callee-a
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namespace: default
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spec:
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replicas: 1
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selector:
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matchLabels:
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app: hoxton-callee-a
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template:
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metadata:
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labels:
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app: hoxton-callee-a
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annotations:
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polarismesh.cn/javaagent: "true"
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polarismesh.cn/javaagentVersion: "1.7.0-RC2"
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polarismesh.cn/javaagentFrameworkName: "spring-cloud"
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polarismesh.cn/javaagentFrameworkVersion: "hoxton"
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spec:
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containers:
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- image: polarismesh/polaris-javaagent-demo-sc-quickstart-hoxton-callee-a:1.7.0-java8
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imagePullPolicy: Always
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name: provider
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resources:
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limits:
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cpu: "500m"
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memory: 1000Mi
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terminationMessagePath: /dev/termination-log
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terminationMessagePolicy: File
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command:
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- /bin/bash
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- -c
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- cd /app && java -Dserver.port=65007 -jar main.jar
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lifecycle:
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preStop:
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exec:
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command: ["curl","-X","PUT","http://127.0.0.1:28080/offline","&&","sleep","30"]
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readinessProbe:
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httpGet:
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path: /online
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port: 28080
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initialDelaySeconds: 3
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periodSeconds: 3
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restartPolicy: Always

‎polaris-agent-examples/spring-cloud-plugins-examples/spring-cloud-hoxton-examples/quickstart-examples/quickstart-callee-service-a/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<parent>
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<artifactId>quickstart-example</artifactId>
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<groupId>com.tencent.cloud</groupId>
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<version>1.14.0-Hoxton.SR12-SNAPSHOT</version>
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<relativePath/>
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</parent>
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<modelVersion>4.0.0</modelVersion>
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<artifactId>quickstart-callee-service-a</artifactId>
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<name>Quickstart Callee Service A</name>
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<dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>com.alibaba.cloud</groupId>
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<artifactId>spring-cloud-alibaba-dependencies</artifactId>
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<version>2.2.1.RELEASE</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-dependencies</artifactId>
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<version>Hoxton.SR12</version>
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<type>pom</type>
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<scope>import</scope>
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</dependency>
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</dependencies>
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</dependencyManagement>
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<dependencies>
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<dependency>
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<groupId>com.tencent.cloud</groupId>
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<artifactId>spring-cloud-starter-tencent-all</artifactId>
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<version>1.14.0-Hoxton.SR12-SNAPSHOT</version>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-actuator</artifactId>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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<executions>
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<execution>
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<goals>
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<goal>repackage</goal>
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</goals>
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</execution>
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</executions>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-source-plugin</artifactId>
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<version>3.2.0</version>
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<executions>
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<execution>
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<id>attach-sources</id>
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<goals>
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<goal>jar</goal>
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</goals>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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</project>

‎polaris-agent-examples/spring-cloud-plugins-examples/spring-cloud-hoxton-examples/quickstart-examples/quickstart-callee-service-a/src/main/java/com/tencent/cloud/quickstart/callee/CustomMetadata.java

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/*
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* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
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*
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* Licensed under the BSD 3-Clause License (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://opensource.org/licenses/BSD-3-Clause
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*
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* Unless required by applicable law or agreed to in writing, software distributed
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* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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* CONDITIONS OF ANY KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations under the License.
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*/
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package com.tencent.cloud.quickstart.callee;
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import java.util.HashMap;
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import java.util.Map;
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import com.tencent.cloud.common.spi.InstanceMetadataProvider;
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import org.springframework.stereotype.Component;
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/**
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* Custom metadata for instance.
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*
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* @author Haotian Zhang
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*/
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@Component
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public class CustomMetadata implements InstanceMetadataProvider {
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@Override
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public Map<String, String> getMetadata() {
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Map<String, String> metadata = new HashMap<>();
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metadata.put("k1", "v1");
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return metadata;
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}
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@Override
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public String getZone() {
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return "shenzhen-zone-1";
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}
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}

‎polaris-agent-examples/spring-cloud-plugins-examples/spring-cloud-hoxton-examples/quickstart-examples/quickstart-callee-service-a/src/main/java/com/tencent/cloud/quickstart/callee/QuickstartCalleeController.java

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/*
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* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
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*
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* Licensed under the BSD 3-Clause License (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://opensource.org/licenses/BSD-3-Clause
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*
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* Unless required by applicable law or agreed to in writing, software distributed
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* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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* CONDITIONS OF ANY KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations under the License.
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*/
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package com.tencent.cloud.quickstart.callee;
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import java.io.UnsupportedEncodingException;
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import java.net.URLDecoder;
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import com.tencent.cloud.common.constant.MetadataConstant;
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import com.tencent.cloud.quickstart.callee.config.DataSourceProperties;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.PathVariable;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.RequestHeader;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestParam;
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import org.springframework.web.bind.annotation.RestController;
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import static com.tencent.cloud.common.constant.ContextConstant.UTF_8;
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/**
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* Quickstart callee controller.
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*
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* @author Haotian Zhang
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*/
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@RestController
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@RequestMapping("/quickstart/callee")
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public class QuickstartCalleeController {
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private static final Logger LOG = LoggerFactory.getLogger(QuickstartCalleeController.class);
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@Value("${server.port:0}")
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private int port;
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@Value("${spring.cloud.client.ip-address:127.0.0.1}")
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private String ip;
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@Value("${appName:${spring.application.name}}")
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private String appName;
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@Autowired
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private DataSourceProperties dataSourceProperties;
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/**
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* Get sum of two value.
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* @param value1 value 1
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* @param value2 value 2
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* @return sum
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*/
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@GetMapping("/sum")
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public String sum(@RequestParam int value1, @RequestParam int value2) {
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LOG.info("Quickstart Callee Service [{}:{}] is called and sum is [{}].", ip, port, value1 + value2);
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return String.format("Quickstart Callee Service [%s:%s] is called and sum is [%s].", ip, port, value1 + value2);
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}
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/**
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* Get information of callee.
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* @return information of callee
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*/
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@GetMapping("/info")
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public String info() {
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LOG.info("Quickstart [{}] Service [{}:{}] is called. datasource = [{}].", appName, ip, port, dataSourceProperties);
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return String.format("Quickstart [%s] Service [%s:%s] is called. datasource = [%s].", appName, ip, port, dataSourceProperties);
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}
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/**
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* Mock post save value.
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* @return true
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*/
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@PostMapping("/saveValue")
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public Boolean saveValue(@RequestParam int value) {
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LOG.info("Quickstart [{}] Service [{}:{}] is called. Mock save value = [{}].", appName, ip, port, value);
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return true;
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}
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/**
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* Get path echo of callee.
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* @return information of callee
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*/
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@GetMapping("/path/echo/{param}")
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public String pathEcho(@PathVariable String param) {
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LOG.info("Quickstart [{}] Service [{}:{}] is called. param = [{}].", appName, ip, port, param);
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return String.format("Quickstart [%s] Service [%s:%s] is called. datasource = [%s].", appName, ip, port, param);
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}
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/**
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* Get metadata in HTTP header.
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*
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* @param metadataStr metadata string
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* @return metadata in HTTP header
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* @throws UnsupportedEncodingException encoding exception
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*/
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@RequestMapping("/echo")
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public String echoHeader(@RequestHeader(MetadataConstant.HeaderName.CUSTOM_METADATA) String metadataStr)
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throws UnsupportedEncodingException {
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LOG.info(URLDecoder.decode(metadataStr, UTF_8));
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metadataStr = URLDecoder.decode(metadataStr, UTF_8);
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return metadataStr;
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}
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/**
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* Check circuit break.
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*
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* @return circuit break info
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*/
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@GetMapping("/circuitBreak")
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public String circuitBreak() {
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LOG.info("Quickstart Callee Service [{}:{}] is called right.", ip, port);
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return String.format("Quickstart Callee Service [%s:%s] is called right.", ip, port);
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}
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@GetMapping("/faultDetect")
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public String health() {
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LOG.info("Quickstart Callee Service [{}:{}] is detected right.", ip, port);
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return String.format("Quickstart Callee Service [%s:%s] is detected right.", ip, port);
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}
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}

‎polaris-agent-examples/spring-cloud-plugins-examples/spring-cloud-hoxton-examples/quickstart-examples/quickstart-callee-service-a/src/main/java/com/tencent/cloud/quickstart/callee/QuickstartCalleeServiceA.java

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/*
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* Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
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*
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* Licensed under the BSD 3-Clause License (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* https://opensource.org/licenses/BSD-3-Clause
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*
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* Unless required by applicable law or agreed to in writing, software distributed
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* under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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* CONDITIONS OF ANY KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations under the License.
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*/
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package com.tencent.cloud.quickstart.callee;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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/**
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* Quickstart callee application.
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*
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* @author Haotian Zhang
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*/
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@SpringBootApplication
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public class QuickstartCalleeServiceA {
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public static void main(String[] args) {
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SpringApplication.run(QuickstartCalleeServiceA.class, args);
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}
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}

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