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BAEL-5266: Netflix sidecar demo applications created. (#12183)
* BAEL-5266: Netflix sidecar demo applications created. * BAEL-5266: Changed NodeJS endpoint to hello * BAEL-5266: Removed .gitignore files as the .gitignore is already available in project scope.
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‎spring-cloud/spring-cloud-netflix-sidecar/echo-demo/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" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<artifactId>echo-demo</artifactId>
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<name>echo-demo</name>
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<description>Demo for echo endpoint</description>
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<parent>
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<groupId>com.baeldung.cloud</groupId>
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<artifactId>spring-cloud-netflix-sidecar</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<relativePath>../pom.xml</relativePath>
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</parent>
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<dependencies>
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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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<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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<!-- https://mvnrepository.com/artifact/org.springframework.cloud/spring-cloud-starter-netflix-zuul -->
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-starter-netflix-zuul</artifactId>
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<version>2.2.10.RELEASE</version>
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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-starter-netflix-eureka-client</artifactId>
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<version>2.2.10.RELEASE</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-test</artifactId>
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<scope>test</scope>
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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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</plugin>
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</plugins>
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</build>
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</project>

‎spring-cloud/spring-cloud-netflix-sidecar/echo-demo/src/main/java/com/baeldung/cloud/echo/EchoApplication.java‎

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package com.baeldung.cloud.echo;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.cloud.client.ServiceInstance;
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import org.springframework.cloud.client.discovery.DiscoveryClient;
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import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
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import org.springframework.cloud.netflix.zuul.EnableZuulProxy;
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import org.springframework.context.annotation.Bean;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.ResponseEntity;
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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.RestController;
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import org.springframework.web.client.RestTemplate;
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import java.util.List;
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@SpringBootApplication
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@EnableEurekaClient
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@EnableZuulProxy
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@RestController
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public class EchoApplication {
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@Autowired
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DiscoveryClient discoveryClient;
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@Autowired
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RestTemplate restTemplate;
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@Bean
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public RestTemplate restTemplate() {
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return new RestTemplate();
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}
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@GetMapping("/hello/{me}")
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public ResponseEntity<String> echo(@PathVariable("me") String me) {
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List<ServiceInstance> instances = discoveryClient.getInstances("sidecar");
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if (instances.isEmpty()) {
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return ResponseEntity.status(HttpStatus.SERVICE_UNAVAILABLE).body("hello service is down");
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}
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String url = instances.get(0).getUri().toString();
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return ResponseEntity.ok(restTemplate.getForObject(url + "/hello/" + me, String.class));
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}
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public static void main(String[] args) {
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SpringApplication.run(EchoApplication.class, args);
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}
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}

‎spring-cloud/spring-cloud-netflix-sidecar/echo-demo/src/main/resources/application.yml‎

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server.port: 8085
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spring:
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application:
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name: echo
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eureka:
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instance:
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hostname: localhost
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leaseRenewalIntervalInSeconds: 1
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leaseExpirationDurationInSeconds: 2
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client:
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service-url:
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defaultZone: http://127.0.0.1:8761/eureka
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healthcheck:
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enabled: true

‎spring-cloud/spring-cloud-netflix-sidecar/echo-demo/src/test/java/com/baeldung/cloud/echo/SpringContextTest.java‎

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package com.baeldung.cloud.echo;
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import org.junit.jupiter.api.Test;
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import org.springframework.boot.test.context.SpringBootTest;
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@SpringBootTest
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public class SpringContextTest {
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@Test
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void contextLoads() {
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}
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}

‎spring-cloud/spring-cloud-netflix-sidecar/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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<modelVersion>4.0.0</modelVersion>
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<groupId>com.baeldung.cloud</groupId>
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<artifactId>spring-cloud-netflix-sidecar</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<packaging>pom</packaging>
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<name>spring-cloud-netflix-sidecar</name>
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<description>Netflix Sidecar project for Spring Boot</description>
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<parent>
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<groupId>com.baeldung</groupId>
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<artifactId>parent-boot-2</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<relativePath>../../parent-boot-2</relativePath>
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</parent>
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<modules>
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<module>sidecar-demo</module>
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<module>echo-demo</module>
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</modules>
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<properties>
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<netflix.cloud.version>2.2.10.RELEASE</netflix.cloud.version>
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<spring-boot.version>2.3.12.RELEASE</spring-boot.version>
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</properties>
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</project>

‎spring-cloud/spring-cloud-netflix-sidecar/sidecar-demo/nodejs/hello.js‎

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const express = require('express')
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const app = express()
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const port = 3000
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app.get('/', (req, res) => {
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res.send('Hello World!')
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})
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app.get('/health', (req, res) => {
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res.send({ "status":"UP"})
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})
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app.get('/hello/:me', (req, res) => {
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res.send('Hello ' + req.params.me + '!')
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})
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app.listen(port, () => {
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console.log(`Hello app listening on port ${port}`)
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})

‎spring-cloud/spring-cloud-netflix-sidecar/sidecar-demo/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" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<artifactId>sidecar-demo</artifactId>
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<name>sidecar-demo</name>
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<description>Sidecar demo for hello endpoint</description>
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<parent>
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<groupId>com.baeldung.cloud</groupId>
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<artifactId>spring-cloud-netflix-sidecar</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<relativePath>../pom.xml</relativePath>
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</parent>
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<dependencies>
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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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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-netflix-sidecar</artifactId>
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<version>${netflix.cloud.version}</version>
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</dependency>
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<dependency>
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<groupId>io.projectreactor</groupId>
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<artifactId>reactor-core</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-test</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.junit.jupiter</groupId>
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<artifactId>junit-jupiter</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.mockito</groupId>
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<artifactId>mockito-junit-jupiter</artifactId>
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<scope>test</scope>
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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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</plugin>
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</plugins>
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</build>
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</project>

‎spring-cloud/spring-cloud-netflix-sidecar/sidecar-demo/src/main/java/com/baeldung/cloud/sidecar/SidecarApplication.java‎

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package com.baeldung.cloud.sidecar;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.cloud.netflix.sidecar.EnableSidecar;
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@SpringBootApplication
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@EnableSidecar
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public class SidecarApplication {
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public static void main(String[] args) {
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SpringApplication.run(SidecarApplication.class, args);
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}
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}

‎spring-cloud/spring-cloud-netflix-sidecar/sidecar-demo/src/main/resources/application.yml‎

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server.port: 8084
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spring:
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application:
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name: sidecar
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eureka:
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instance:
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hostname: localhost
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leaseRenewalIntervalInSeconds: 1
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leaseExpirationDurationInSeconds: 2
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client:
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service-url:
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defaultZone: http://127.0.0.1:8761/eureka
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healthcheck:
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enabled: true
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sidecar:
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port: 3000
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health-uri: http://localhost:3000/health

‎spring-cloud/spring-cloud-netflix-sidecar/sidecar-demo/src/test/java/com/baeldung/cloud/sidecar/SpringContextTest.java‎

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package com.baeldung.cloud.sidecar;
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import org.junit.jupiter.api.Test;
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import org.springframework.boot.test.context.SpringBootTest;
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@SpringBootTest
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public class SpringContextTest {
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@Test
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void contextLoads() {
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}
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}

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