微服务架构 CI/CD 实战

概述

现有 Demo，一项目某块业务拆分为如下几个模块

book-web 前端，采用 Vue MVVM，服务端 Thymeleaf SSR 渲染，友好 SEO MPA。服务端路由，Spring MVC
book-gateway 微服务网关，Spring Cloud Gateway
book-service 接口提供方，Spring Cloud Alibaba Dubbo 服务消费方
book-server 数据承载方，Spring Cloud Alibaba Dubbo 服务提供方
book-common 实体，Dubbo 接口 jar
cloud-common 微服务公共 jar
common pom
school-parent 最上级父工程 pom

本篇内容使用Jenkis实现自动构建。

common 继承关系

在项目根路径下执行，Maven 命令 mvn clean install -pl com.lab:book-common -am -Ptest，截取输出如下

[INFO] Reactor Summary for school_parent 0.0.1-SNAPSHOT:[INFO][INFO] school_parent ...................................... SUCCESS [  0.761 s][INFO] common ............................................. SUCCESS [  0.083 s][INFO] cloud-common ....................................... SUCCESS [  6.430 s][INFO] book-common ........................................ SUCCESS [  3.236 s][INFO] ------------------------------------------------------------------------[INFO] BUILD SUCCESS[INFO] ------------------------------------------------------------------------[INFO] Total time:  11.880 s[INFO] Finished at: 2020-05-03T14:13:12+08:00[INFO] ------------------------------------------------------------------------

Alibaba Sentinel

nohup java -Dserver.port=8858 -Dsentinel.dashboard.auth.username=sentinel -Dsentinel.dashboard.auth.password=Aa123456 -jar sentinel-dashboard-1.7.2.jar >sentinel.log 2>&1 &

Maven 环境

root@jazz-pc:/opt# mvn -vApache Maven 3.6.3 (cecedd343002696d0abb50b32b541b8a6ba2883f)Maven home: /usr/local/apache-maven-3.6.3Java version: 11.0.7, vendor: Oracle Corporation, runtime: /usr/local/java/jdk-11.0.7Default locale: zh_CN, platform encoding: UTF-8OS name: "linux", version: "5.3.0-51-generic", arch: "amd64", family: "unix"

在settings.xml 文件中，添加国内镜像

<mirror>	<id>aliyunmaven</id>	<mirrorOf>*</mirrorOf>	<name>阿里云公共仓库</name>	<url>https://maven.aliyun.com/repository/public</url></mirror>

顶级父工程 pom.xml 添加，跳过Maven单元测试编译和执行

<maven.test.skip>true</maven.test.skip><skipTests>true</skipTests>

如果有 Maven Nexus，则另外添加设置，install 替换为 deploy

Jenkins相关配置

启动Jenkis

nohup java -jar /usr/local/jenkins/jenkins.war --ajp13Port=-1 --httpPort=8086 >/usr/local/jenkins/jenkins.out 2>&1 &

Jenkins JDK 环境 >=1.8 and <=11 目前最新版本不支持 Java 14
Jenkins 安装一般会卡住 2 次，则是去国外下载插件数据缓慢的原因，kill -9 进程 ID，ps -ef | grep jenkins 找到进程 ID。
第一次卡住修改： /root/.jenkins/hudson.model.UpdateCenter.xml 文件里面链接内容为国内镜像地址 https://mirrors.tuna.tsinghua.edu.cn/jenkins/updates/update-center.json
第二次卡住执行替换命令：

cd /root/.jenkins/updatessed -i 's/http:\/\/updates.jenkins-ci.org\/download/https:\/\/mirrors.tuna.tsinghua.edu.cn\/jenkins/g' default.json && sed -i 's/http:\/\/www.google.com/https:\/\/www.baidu.com/g' default.json

Git or SVN

root@jazz-pc:/opt# which git/usr/bin/gitroot@jazz-pc:/opt# which svn/usr/bin/svn

Jenkins CI/CD

Global Tool Configuration 设置好，JDK，Maven，Git
新建 Item，Freestyle project，如下

image.png

Item book-common

源码管理，选择 Git，填写 Repository URL 和 Credentials 设置 Jenkins 凭据
构建 Execute shell

#!/bin/bash
cd ./schoolmvn clean install -pl com.lab:book-common -am -Ptest
echo 'install ok!'

Item book-web

源码管理略
Execute shell

#!/bin/bash
cd ./school/book-webmvn clean package -Ptest
echo 'package ok!'echo 'build start!'
service_name="book-web"service_prot=80
IID=$(docker images | grep "$service_name" | awk '{print $3}')echo "IID $IID"
if [ -n "$IID" ]then    echo "exist $service_name image,IID=$IID"
    docker rmi -f $service_name    echo "delete $service_name image"
    docker build -t $service_name .    echo "build $service_name image"else    echo "no exist $service_name image,build docker"
    docker build -t $service_name .    echo "build $service_name image"fi
CID=$(docker ps -a | grep "$service_name" | awk '{print $1}')echo "CID $CID"
if [ -n "$CID" ]then    echo "exist $service_name container,CID=$CID"
    docker stop $service_name    docker rm $service_nameelse    echo "no exist $service_name container"fi
docker run -d --name $service_name \-v /etc/localtime:/etc/localtime:ro \-v /etc/timezone:/etc/timezone:ro \-v /data/logs:/data/logs:rw \--net=host -p $service_prot:$service_prot $service_name

Item book-gateway

源码管理和 Execute shell 略

Item book-service

Execute shell

#!/bin/bash
cd ./school/book-servicemvn clean package -Ptest
echo 'package ok!'echo 'build start!'
service_name="book-service"service_prot=30880
IID=$(docker images | grep "$service_name" | awk '{print $3}')echo "IID $IID"
if [ -n "$IID" ]then    echo "exist $service_name image,IID=$IID"
    docker rmi -f $service_name    echo "delete $service_name image"
    docker build --no-cache -t $service_name .    echo "build $service_name image"else    echo "no exist $service_name image,build docker"
    docker build -t $service_name .    echo "build $service_name image"fi
CID=$(docker ps -a | grep "$service_name" | awk '{print $1}')echo "CID $CID"
if [ -n "$CID" ]then    echo "exist $service_name container,CID=$CID"
    docker stop $service_name    docker rm $service_nameelse    echo "no exist $service_name container"fi
docker run -d --name $service_name \-e DUBBO_IP_TO_REGISTRY=192.168.1.6 \-e DUBBO_PORT_TO_REGISTRY=$service_prot \-e DUBBO_IP_TO_BIND=192.168.1.6 \-p $service_prot:$service_prot \-v /etc/localtime:/etc/localtime:ro \-v /etc/timezone:/etc/timezone:ro \-v /data/logs:/data/logs:rw \--net=host $service_name

Item book-server

Execute shell

#!/bin/bash
cd ./school/book-servermvn clean package -Ptest
echo 'package ok!'echo 'build start!'
service_name="book-server"service_prot=20880
IID=$(docker images | grep "$service_name" | awk '{print $3}')echo "IID $IID"
if [ -n "$IID" ]then    echo "exist $service_name image,IID=$IID"
    docker rmi -f $service_name    echo "delete $service_name image"
    docker build --no-cache -t $service_name .    echo "build $service_name image"else    echo "no exist $service_name image,build docker"
    docker build -t $service_name .    echo "build $service_name image"fi
CID=$(docker ps -a | grep "$service_name" | awk '{print $1}')echo "CID $CID"
if [ -n "$CID" ]then    echo "exist $service_name container,CID=$CID"
    docker stop $service_name    docker rm $service_nameelse    echo "no exist $service_name container"fi
docker run -d --name $service_name \-e DUBBO_IP_TO_REGISTRY=192.168.1.6 \-e DUBBO_PORT_TO_REGISTRY=$service_prot \-e DUBBO_IP_TO_BIND=192.168.1.6 \-p $service_prot:$service_prot \-v /etc/localtime:/etc/localtime:ro \-v /etc/timezone:/etc/timezone:ro \-v /data/logs:/data/logs:rw \--net=host \$service_name

Dockerfile

位置和 pom.xml 路径平级，book-server 内容如下，其他略

FROM adoptopenjdk/openjdk11:jdk-11.0.7_10-alpineVOLUME ["/tmp","/data/logs"]COPY ./target/book-server-0.0.1-SNAPSHOT.jar book-server.jarENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/book-server.jar","&"]

book-web 执行构建 Build Now

book-web 前端浏览器访问