概述

实现docker-compose 部署spring cloud实现一次构建到处运行，在此做个记录

1、安装docker-compose

2、构建Dockerfile

FROM openjdk:8-jdk-alpineCOPY spring-cloud-admin-1.0.0-SNAPSHOT.jar app.jarCMD java -jar app.jar复制代码

3、构建docker-compose 文件

1、构建过程遇到的问题

1、spring cloud 服务之间启动顺序问题

1、解决方案(拆分docker-compose)

由于spring cloud config 进行配置文件管理而docker-compose 启动时所有服务同时启动而config还没加载完成导致所有服务启动失败。

version: '2'services:       # 自定义服务名    spring-cloud-eureka:        # 总起重启        restart: always        # 别名        container_name: spring-cloud-eureka        # 编译DockerFile所在路径        build: spring-cloud-eureka        # 端口映射        ports:          - 8081:8081        # 网络桥接        networks:          - springCloud        # 等待某服务启动后启动服务         depends_on:         - spring-cloud-config             spring-cloud-config:         restart: always        container_name: spring-cloud-config        build: spring-cloud-config        ports:          - 8888:8888               networks:          - springCloud                        # 构建网络环境    networks:     springCloud:       driver: bridge复制代码

docker-compose-tow.yml

version: '2'services:          spring-cloud-service:         restart: always        container_name: spring-cloud-service        build: spring-cloud-service        ports:          - 8082:8082                                     spring-cloud-feign:         restart: always        container_name: spring-cloud-feign        build: spring-cloud-feign        ports:          - 8083:8083                 spring-cloud-gateway:         restart: always        container_name: spring-cloud-gateway        build: spring-cloud-gateway        ports:          - 8085:8085               spring-cloud-zipkin:         restart: always        container_name: spring-cloud-zipkin        build: spring-cloud-zipkin        ports:          - 8084:8084                   spring-cloud-admin:         restart: always        container_name: spring-cloud-admin        build: spring-cloud-admin        ports:          - 8087:8087   # 加入某个已存在的网络环境    networks:  default:    external:      name: docker-springCloud复制代码

2、解决方案（使用Dockerize插件监听服务启动）

Dockerfile 改造

#依赖环境FROM openjdk:8-jdk-alpine#设置变量ENV DOCKERIZE_VERSION v0.6.1#下载插件RUN wget https://github.com/jwilder/dockerize/releases/download/$DOCKERIZE_VERSION/dockerize-linux-amd64-$DOCKERIZE_VERSION.tar.gz \    && tar -C /usr/local/bin -xzvf dockerize-linux-amd64-$DOCKERIZE_VERSION.tar.gz \    && rm dockerize-linux-amd64-$DOCKERIZE_VERSION.tar.gz#拷贝jar文件COPY spring-cloud-admin-1.0.0-SNAPSHOT.jar app.jar#执行命令  -timeout 超时多久运行jar   -wait 等待http地址访问成功运行jar  wait 也可以是tcp://xxxx ENTRYPOINT ["dockerize", "-timeout", "5m", "-wait", "http://192.168.1.5:8888/application/dev/master", "java", "-Djava.security.egd=file:/dev/./urandom", "-jar", "app.jar"]复制代码

docker-compose.yml

version: '2'services:       # 自定义服务名    spring-cloud-eureka:        # 总起重启        restart: always        # 别名        container_name: spring-cloud-eureka        # 编译DockerFile所在路径        build: spring-cloud-eureka        # 端口映射        ports:          - 8081:8081             spring-cloud-config:         restart: always        container_name: spring-cloud-config        build: spring-cloud-config        ports:          - 8888:8888                  spring-cloud-service:         restart: always        container_name: spring-cloud-service        build: spring-cloud-service        ports:          - 8082:8082                                   spring-cloud-feign:         restart: always        container_name: spring-cloud-feign        build: spring-cloud-feign        ports:          - 8083:8083                       spring-cloud-gateway:         restart: always        container_name: spring-cloud-gateway        build: spring-cloud-gateway        ports:          - 8085:8085                                  spring-cloud-zipkin:         restart: always        container_name: spring-cloud-zipkin        build: spring-cloud-zipkin        ports:          - 8084:8084                                  spring-cloud-admin:         restart: always        container_name: spring-cloud-admin        build: spring-cloud-admin        ports:          - 8087:8087                     复制代码

运行结果其他服务都在等待config启动

3、测试docker-compose 部署spring cloud

ps:注意修改spring cloud 内部的ip为docker 容器服务名否则服务之间无法联通，使用服务注册发现调用服务除外复制代码

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