预操作

• 打通jenkins、gitlab凭证， 见下面这篇文章

https://blog.51cto.com/wzlinux/2160109

• 然后从这里拿到凭证ID

用以在后面的Jenkinsfile中进行配置。

• 在阿里云，拿到镜像仓库凭证，用于自动上传镜像。

Jenkinsfile

• 放在项目的根目录下，原理同Dockerfile

node  {def appimagedef registry = '项目仓库相对路径'def registryCredential = 'aliyun-docker-image-repository'// 第一步 拉取代码stage("Checkout"){checkout([$class: 'GitSCM', branches: [[name: '*/'+env.BRANCH_NAME]], extensions: [[$class: 'SubmoduleOption', disableSubmodules: false, parentCredentials: false, recursiveSubmodules: true, reference: '', trackingSubmodules: false]], userRemoteConfigs: [[credentialsId: 'd423a59c-2f90-42d9-dd6c39f0033c', url: '项目Git地址']]])}// 打包镜像stage('Build') {appimage = docker.build registry + ":" + env.BRANCH_NAME + "-$BUILD_NUMBER"}// 推送镜像stage('Publish') {docker.withRegistry('https://registry-vpc.cn-beijing.aliyuncs.com', registryCredential ) {appimage.push()appimage.push(env.BRANCH_NAME)}}// 服务部署stage('Deploy') {def img = "镜像仓库绝对路径:" + env.BRANCH_NAME + "-$BUILD_NUMBER"def namespaceif (env.BRANCH_NAME == 'master' ) {namespace = 'dev'} else if (env.BRANCH_NAME == 'staging' ) {namespace = 'staging'} else if (env.BRANCH_NAME == 'production' ) {namespace = 'production'}sh "kubectl set image deployment/scheduler simba-ranking-scheduler="+img+" --record --namespace "+namespace}
}

3. jenkins设置

   • 创建新任务

   

   • 设置如下