本篇内容介绍了“docker-compose怎么部署eureka服务端和客户端”的有关知识，在实际案例的操作过程中，不少人都会遇到这样的困境，接下来就让小编带领大家学习一下如何处理这些情况吧！希望大家仔细阅读，能够学有所成！
使用场景
使用docker-compose方式部署eureka的服务端和客户端，并使用容器ip进行通信。
原理是使用docker-compose默认在一个网络下，并提供dns下的通过service通信的功能。
该方法也可以用于其它形式的容器内部服务调用的功能实现。
服务端主要代码
pom.xml
<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.7.9</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>com.liuyang.sc</groupId><artifactId>eurekaserver</artifactId><version>0.0.1-SNAPSHOT</version><name>eurekaserver</name><description>Demo project for Spring Boot</description><properties><java.version>1.8</java.version><spring-cloud.version>2021.0.6</spring-cloud.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-netflix-eureka-server</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency></dependencies><dependencyManagement><dependencies><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>${spring-cloud.version}</version><type>pom</type><scope>import</scope></dependency></dependencies></dependencyManagement><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-resources-plugin</artifactId><version>2.4.3</version></plugin></plugins></build></project>application.yml
spring: application: name: eureka-serverserver: port: 29108 #服务注册中心端口号eureka: instance: hostname: 127.0.0.1 #服务注册中心IP地址 client: registerWithEureka: false #是否向服务注册中心注册自己 fetchRegistry: false #是否检索服务 serviceUrl: #服务注册中心的配置内容，指定服务注册中心的位置 defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/main.java
package com.liuyang.sc.eurekaserver;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.cloud.client.discovery.EnableDiscoveryClient;@EnableEurekaServer@SpringBootApplicationpublic class EurekaserverApplication {public static void main(String[] args) {SpringApplication.run(EurekaserverApplication.class, args);}}客户端主要代码
pom.xml
<?xml version="1.0" encoding="UTF-8"?><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.7.9</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>com.sc</groupId><artifactId>gateway-project</artifactId><version>0.0.1-SNAPSHOT</version><name>gateway-project</name><description>Demo project for Spring Boot</description><properties><java.version>1.8</java.version><spring-cloud.version>2021.0.6</spring-cloud.version></properties><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-webflux</artifactId></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-gateway</artifactId></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-netflix-eureka-client</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>io.projectreactor</groupId><artifactId>reactor-test</artifactId><scope>test</scope></dependency></dependencies><dependencyManagement><dependencies><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-dependencies</artifactId><version>${spring-cloud.version}</version><type>pom</type><scope>import</scope></dependency></dependencies></dependencyManagement><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-resources-plugin</artifactId><version>2.4.3</version></plugin></plugins></build></project>application.yml
spring: application: name: gateway cloud: gateway: discovery: locator: enabled: trueserver: port: 29107eureka: client: service-url: defaultZone: http://eurekaserver:29108/eureka/ #此处的eurakaserver为docker-compose.yml中eureka-server工程的容器定义 instance: prefer-ip-address: true# 使用IP注册，避免容器id:port调用报错main.java
package com.sc.gatewayproject;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.cloud.client.discovery.EnableDiscoveryClient;import org.springframework.cloud.netflix.eureka.EnableEurekaClient;@EnableEurekaClient@EnableDiscoveryClient@SpringBootApplicationpublic class GatewayProjectApplication {public static void main(String[] args) {SpringApplication.run(GatewayProjectApplication.class, args);}}粗陋的DockerFile
eurekaserver
FROM java:openjdk-8u111-jdkCOPY eurekaserver-0.0.1-SNAPSHOT.jar app.jarEXPOSE 29108ENTRYPOINT ["java","-Xmx128m","-jar","app.jar"]gateway
FROM java:openjdk-8u111-jdkCOPY gateway-project-0.0.1-SNAPSHOT.jar app.jarEXPOSE 29107ENTRYPOINT ["java","-Xmx128m","-jar","app.jar"]docker-compose.yml
version: '2'services: eurekaserver:# 注意此处的名称需要添加到eureka客户端的defaultZone中，相当于docker内的主机名 #container_name: eureka_server image: maojindaobike/eurekaserver:230315 ports: - "29108:29108" gateway: #container_name: gateway image: maojindaobike/gateway:230316_v5 ports: - "29107:29107" depends_on: - eurekaserver启动
docker-compose up -d
扩容
扩容时，需要显式端口映射，避免端口冲突
docker-compose.yml
version: '3'services: eurekaserver: #container_name: eureka_server image: maojindaobike/eurekaserver:230315 ports: - "29108:29108" gateway: #container_name: gateway image: maojindaobike/gateway:230316_v5 ports: - "29107" depends_on: - eurekaserverdocker-compose up -ddocker-compose up -d --scale gateway=3
docker-compse ps
root@dockerserver:~/springcloud-dockerpose# docker-compose ps/snap/docker/2746/lib/python3.6/site-packages/paramiko/transport.py:32: CryptographyDeprecationWarning: Python 3.6 is no longer supported by the Python core team. Therefore, support for it is deprecated in cryptography. The next release of cryptography (40.0) will be the last to support Python 3.6. from cryptography.hazmat.backends import default_backend Name Command State Ports-------------------------------------------------------------------------------------------------------------------------springcloud-dockerpose_eurekaserver_1 java -Xmx128m -jar app.jar Up 0.0.0.0:29108->29108/tcp,:::29108->29108/tcpspringcloud-dockerpose_gateway_1 java -Xmx128m -jar app.jar Up 0.0.0.0:49154->29107/tcp,:::49154->29107/tcpspringcloud-dockerpose_gateway_2 java -Xmx128m -jar app.jar Up 0.0.0.0:49156->29107/tcp,:::49156->29107/tcpspringcloud-dockerpose_gateway_3 java -Xmx128m -jar app.jar Up 0.0.0.0:49155->29107/tcp,:::49155->29107/tcp“docker-compose怎么部署eureka服务端和客户端”的内容就介绍到这里了，感谢大家的阅读。如果想了解更多行业相关的知识可以关注编程网网站，小编将为大家输出更多高质量的实用文章！
