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README.md

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## 基于springboot构建流水线示例项目
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## Repo Introduction
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Jenkinsfile in SCM 意为将 Jenkinsfile 文件本身作为源代码管理 (Source Control Management) 的一部分,根据该文件内的流水线配置信息快速构建工程内的 CI/CD 功能模块,比如阶段 (Stage),步骤 (Step) 和任务 (Job)。因此,在代码仓库中包含 Jenkinsfile
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KubeSphere provides a Jenkins-based DevOps system [with various features](https://kubesphere.io/docs/devops-user-guide/understand-and-manage-devops-projects/overview/#features). This repository is used for a SpringBoot demo for DevOps on KubeSphere. For example, you can find a file of `Jenkinsfile-online` in the root directory, and you can use it to create a pipeline through the **Jenkinsfile in SCM** method.
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## 项目介绍
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For more information about how to use the KubeSphere DevOps system, you can refer to the following list of KubeSphere official documents.
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#### 本项目为kubesphere 基于springboot构建流水线示例项目,具体参见kubesphere [V2.1教程](https://v2-1.docs.kubesphere.io/docs/zh-CN/quick-start/devops-online/),[V3.0教程](https://kubesphere.com.cn/docs/devops-user-guide/how-to-use/create-a-pipeline-using-jenkinsfile/)
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## Document List
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项目中包含**Jenkinsfile in SCM** :Jenkinsfile-online文件(Jenkinsfile in SCM 意为将 Jenkinsfile 文件本身作为源代码管理 (Source Control Management) 的一部分),kubesphere 内置Jenkins容器,**Jenkins**可以根据该文件内的流水线配置信息快速构建工程内的 CI/CD 功能模块,比如阶段 (Stage),步骤 (Step) 和任务 (Job)。
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- [Create a Pipeline Using a Jenkinsfile](https://kubesphere.io/docs/devops-user-guide/how-to-use/create-a-pipeline-using-jenkinsfile/)
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- [Create a Pipeline Using Graphical Editing Panels](https://kubesphere.io/docs/devops-user-guide/how-to-use/create-a-pipeline-using-graphical-editing-panel/)
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- [Build and Deploy a Maven Project](https://kubesphere.io/docs/devops-user-guide/examples/a-maven-project/)
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- [Source to Image: Publish an App without a Dockerfile](https://kubesphere.io/docs/project-user-guide/image-builder/source-to-image/)
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Jenkinsfile 来创建流水线,流水线共包括 8 个阶段,最终将演示示例部署到 KubeSphere 集群中的开发环境和生产环境且能够通过公网访问。 仓库中的 dependency 分支为缓存测试用例,测试方式与 master 分支类似,对 dependency 的多次构建可体现出利用缓存可以有效的提升构建速度。
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## 项目使用
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* 项目完成fork后,根据教程修改 Jenkinsfile-online中的环境变量为您自己的值。
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* 根据教程,使用项目管理员 `project-admin`账号登录 KubeSphere,在之前创建的企业空间 (demo-workspace) 下,点击 **项目 → 创建**,创建两个 **资源型项目** `kubesphere-sample-dev` 、kubesphere-sample-prod
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* 名称:固定为 `kubesphere-sample-dev`,kubesphere-sample-prod,若需要修改项目名称则需在本项目中的 [[deploy/dev-ol/](deploy/dev-ol/)][[deploy/prod-ol/](deploy/prod-ol/)]中修改 namespace 属性
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## Jenkinsfile-online文件介绍
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考虑到初学者可能对Jenkins文件不熟悉,对此文件进行介绍,方便您理解我们的流水线做了什么.
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``` yaml
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pipeline {
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agent {
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node {
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label 'maven' // 定义流水线的代理为 maven,kubesphere内置了四个默认代理,在目前版本当中我们内置了 4 种类型的 podTemplate,base、 // nodejs、maven、go,并且在 Pod 中提供了隔离的 Docker 环境。具体参见官方文档
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}
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}
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parameters {
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string(name:'TAG_NAME',defaultValue: '',description:'') //定义 流水线描述
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}
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environment { //定义流水线环境变量
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DOCKER_CREDENTIAL_ID = 'dockerhub-id'
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GITHUB_CREDENTIAL_ID = 'github-id'
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KUBECONFIG_CREDENTIAL_ID = 'demo-kubeconfig'
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REGISTRY = 'docker.io'
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DOCKERHUB_NAMESPACE = 'docker_username'
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GITHUB_ACCOUNT = 'kubesphere'
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APP_NAME = 'devops-java-sample'
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}
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```
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**[Jenkins Agent 说明]( https://v2-1.docs.kubesphere.io/docs/zh-CN/devops/jenkins-agent/)**
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* **第一步**检出代码
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```yaml
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stages {
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stage ('checkout scm') {
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steps {
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checkout(scm)
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}
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}
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```
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* **第二步** 执行单元测试
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```yaml
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stage ('unit test') {
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steps {
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container ('maven') {
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sh 'mvn clean -gs `pwd`/configuration/settings.xml test'
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}
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}
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}
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```
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* **第三步** 编译并推送
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```yaml
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stage ('build & push') {
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steps {
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container ('maven') {
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sh 'mvn -Dmaven.test.skip=true -gs `pwd`/configuration/settings.xml clean package'
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sh 'docker build -f Dockerfile-online -t $REGISTRY/$DOCKERHUB_NAMESPACE/$APP_NAME:SNAPSHOT-$BRANCH_NAME-$BUILD_NUMBER .'
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withCredentials([usernamePassword(passwordVariable : 'DOCKER_PASSWORD' ,usernameVariable : 'DOCKER_USERNAME' ,credentialsId : "$DOCKER_CREDENTIAL_ID" ,)]) {
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sh 'echo "$DOCKER_PASSWORD" | docker login $REGISTRY -u "$DOCKER_USERNAME" --password-stdin'
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sh 'docker push $REGISTRY/$DOCKERHUB_NAMESPACE/$APP_NAME:SNAPSHOT-$BRANCH_NAME-$BUILD_NUMBER'
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}
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}
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}
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}
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```
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* **第四步** 推送至docker hub latest版本
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```yaml
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stage('push latest'){
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when{
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branch 'master'
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}
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steps{
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container ('maven') {
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sh 'docker tag $REGISTRY/$DOCKERHUB_NAMESPACE/$APP_NAME:SNAPSHOT-$BRANCH_NAME-$BUILD_NUMBER $REGISTRY/$DOCKERHUB_NAMESPACE/$APP_NAME:latest '
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sh 'docker push $REGISTRY/$DOCKERHUB_NAMESPACE/$APP_NAME:latest '
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}
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}
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}
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```
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* **第五步** 弹出审核确认,是否部署到开发环境
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```yaml
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stage('deploy to dev') {
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when{
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branch 'master'
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}
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steps {
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input(id: 'deploy-to-dev', message: 'deploy to dev?')
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kubernetesDeploy(configs: 'deploy/dev-ol/**', enableConfigSubstitution: true, kubeconfigId: "$KUBECONFIG_CREDENTIAL_ID")
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}
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}
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stage('push with tag'){
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when{
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expression{
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return params.TAG_NAME =~ /v.*/
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}
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}
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steps {
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container ('maven') {
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input(id: 'release-image-with-tag', message: 'release image with tag?')
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withCredentials([usernamePassword(credentialsId: "$GITHUB_CREDENTIAL_ID", passwordVariable: 'GIT_PASSWORD', usernameVariable: 'GIT_USERNAME')]) {
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sh 'git config --global user.email "kubesphere@yunify.com" '
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sh 'git config --global user.name "kubesphere" '
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sh 'git tag -a $TAG_NAME -m "$TAG_NAME" '
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sh 'git push http://$GIT_USERNAME:$GIT_PASSWORD@github.com/$GITHUB_ACCOUNT/devops-java-sample.git --tags --ipv4'
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}
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sh 'docker tag $REGISTRY/$DOCKERHUB_NAMESPACE/$APP_NAME:SNAPSHOT-$BRANCH_NAME-$BUILD_NUMBER $REGISTRY/$DOCKERHUB_NAMESPACE/$APP_NAME:$TAG_NAME '
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sh 'docker push $REGISTRY/$DOCKERHUB_NAMESPACE/$APP_NAME:$TAG_NAME '
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}
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}
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}
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```
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* **第六步** 部署到生产环境
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```yaml
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stage('deploy to production') {
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when{
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expression{
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return params.TAG_NAME =~ /v.*/
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}
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}
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steps {
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input(id: 'deploy-to-production', message: 'deploy to production?')
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kubernetesDeploy(configs: 'deploy/prod-ol/**', enableConfigSubstitution: true, kubeconfigId: "$KUBECONFIG_CREDENTIAL_ID")
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}
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}
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```
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