Jenkins配置构建Maven项目并打包Docker镜像推送至私仓

备注

Jenkins构建Maven项目需要安装Maven插件,安装后Maven插件默认配置文件路径为:/root/jenkins/tools/hudson.tasks.Maven_MavenInstallation/maven3.6.3/conf/settings.xml。

需要将本地maven settings.xml配置信息配置至该settings.xml中，否则Jenkins构建项目因为无法下载相关jar包而失败

一、配置构建任务

新增任务，选择“构建一个maven项目”

二、配置构建任务

2.1 源码管理

配置项目git地址，认证可手动添加，为git的登录账户和密码，指定分支填写需要构建的分支

2.2 Pre Steps

可执行Jenkins构建前的脚本,可增加更多的bulid step，例如:

2.3 Build

设置POM文件以及执行的相关安装命令等，如果需要跳过Maven的test，则增加-Dmaven.test.skip=true配置

2.4 Post Steps

项目构建完成后，执行的脚本，当前打包镜像以及推送私仓主要通过该step完成。

三、网关通过Jenkins打包发布镜像脚本

#!/bin/bash
 
# jenkins配置的构建任务名称
PROJECT_NAME="gateway-jenkins"
 
# jenkins默认编译后jar包位置
JAR_PATH="/var/jenkins_home/workspace/$PROJECT_NAME/target/"
 
# jar包名称,需要与pom.xml中的jar包坐标信息保持一致
JAR_NAME="zkxy-api-gateway-0.0.1-SNAPSHOT.jar"
 
# 应用启动端口
PORT=7979
 
# Dockerfile maintainer
EMAIL="zouxd@chip-cloud.com"
 
# docker image名称
IMAGE_NAME="zkxy-api-gateway"
 
# docker私仓地址
PRIVATE_REPOSITORY="172.18.0.116:31134"
 
# Dockerfile
DOCKERFILE_NAME="Dockerfile"
 
# echo输出标识，方便日志查看
LOG_TAG="CHIP_AUTO"
 
# -----------------------------------------------------
# 删除zkxy-api-gateway docker镜像，使用新编译的zkxy-api-gateway jar包
# 重新生成新的zkxy-api-gateway docker镜像
# -----------------------------------------------------
function afterJenkins(){
    echo "[$LOG_TAG]===========gateway-jenkins end,begin to execute shell==========="
    gatewayImages=`docker images|grep -i $IMAGE_NAME`
    echo -e "[$LOG_TAG]Current existed gateway images:\n$gatewayImages"
    if [ -n "$gatewayImages" ];then
        gatewayImagesId=`docker images|grep -i $IMAGE_NAME|awk '{print $3}'`
        if [ -n "$gatewayImagesId" ];then
            imageIdArr=($gatewayImagesId)
            for ele in ${imageIdArr[@]}
                do
                    imageId=$ele
                    echo "[$LOG_TAG]Delete image id:$imageId"
                    docker rmi -f $imageId
                    if [ $? -eq 0 ];then
                        echo "[$LOG_TAG]Delete image id:$imageId success!"
                    else
                        echo "[$LOG_TAG]Delete image id:$imageId fail!"
                    fi
                done
        fi
    else
        echo "[$LOG_TAG]No existed gateway images!"
    fi
}
 
# -----------------------------------------------------
# 打包docker镜像,推送至私仓
# -----------------------------------------------------
function packDockerImage(){
    if [ -d $JAR_PATH ];then
        cd $JAR_PATH
        echo "[$LOG_TAG]Current path:`pwd`"
        dockerfile=`ls -l|grep $DOCKERFILE_NAME`
        if [ -n "$dockerfile" ];then
            echo "[$LOG_TAG]Dockerfile has existed!"
        else
            touch $DOCKERFILE_NAME
            echo "FROM java:8-jre" >> $DOCKERFILE_NAME
            echo "MAINTAINER $EMAIL" >> $DOCKERFILE_NAME
            echo "ADD $JAR_NAME /$JAR_NAME" >> $DOCKERFILE_NAME
            echo "EXPOSE $PORT" >> $DOCKERFILE_NAME
            echo "ENTRYPOINT [\"/usr/bin/java\",\"-jar\",\"$JAR_NAME\"]" >> $DOCKERFILE_NAME
        fi
        docker build -t $IMAGE_NAME .
        if [ $? -eq 0 ];then
            echo "[$LOG_TAG]$IMAGE_NAME image build success!"
            imagesId=`docker images|grep -i $IMAGE_NAME|awk '{print $3}'`
            if [ -n "$imagesId" ];then
                imageIdArr=($imagesId)
                for ele in ${imageIdArr[@]}
                    do
                        imageId=$ele
                        echo "[$LOG_TAG]Latest $IMAGE_NAME image id:$imageId"
                    done
            fi
            docker tag $IMAGE_NAME $PRIVATE_REPOSITORY/$IMAGE_NAME:latest
            docker push $PRIVATE_REPOSITORY/$IMAGE_NAME:latest
            if [ $? -eq 0 ];then
                echo "[$LOG_TAG]Execute->docker push $PRIVATE_REPOSITORY/$IMAGE_NAME:latest success!"
            else
                echo "[$LOG_TAG]Execute->docker push $PRIVATE_REPOSITORY/$IMAGE_NAME:latest fail!"
            fi
        else
            echo "[$LOG_TAG]$IMAGE_NAME image build fail!"
        fi
    else
        echo "[$LOG_TAG]Path:$JAR_PATH not existed!"
    fi
}
 
afterJenkins
packDockerImage