jenkinsfile k8s部署模板

jenkinsfile k8s部署模板

def label = "slave-${UUID.randomUUID().toString()}"

podTemplate(label: label, containers: [
  containerTemplate(name: 'maven', image: 'maven:3.6.3-jdk-8', command: 'cat', ttyEnabled: true),
  containerTemplate(name: 'docker', image: 'docker:19.03.8', command: 'cat', ttyEnabled: true),
  containerTemplate(name: 'kubectl', image: 'bitnami/kubectl:1.18.3', command: 'cat', ttyEnabled: true), volumes: [
  hostPathVolume(mountPath: '/root/.m2', hostPath: '/var/lib/cache/.m2'),
  hostPathVolume(mountPath: '/var/run/docker.sock', hostPath: '/var/run/docker.sock')
  hostPathVolume(mountPath: '/.kube/config', hostPath: '/root/.kube'),
]) {
  node(label) {
    def myRepo = checkout scm
    def gitCommit = myRepo.GIT_COMMIT
    def gitBranch = myRepo.GIT_BRANCH
    def imageTag = sh(script: "git rev-parse --short HEAD", returnStdout: true).trim()
    def dockerRegistryUrl = "registry.my.lo"
    def imageEndpoint = "public/spring-produce"
    def image = "${dockerRegistryUrl}/${imageEndpoint}"

    stage('单元测试') {
      echo "1.测试阶段"
    }
    stage('代码编译打包') {
      try {
        container('maven') {
          echo "2. 代码编译打包阶段"
          sh "mvn clean package -Dmaven.test.skip=true"
        }
      } catch (exc) {
        println "构建失败 - ${currentBuild.fullDisplayName}"
        throw(exc)
      }
    }
    stage('构建 Docker 镜像') {
      withCredentials([[$class: 'UsernamePasswordMultiBinding',
        credentialsId: 'dockerhub',
        usernameVariable: 'DOCKER_HUB_USER',
        passwordVariable: 'DOCKER_HUB_PASSWORD']]) {
          container('docker') {
            echo "3. 构建 Docker 镜像阶段"
            sh """
              docker login ${dockerRegistryUrl} -u ${DOCKER_HUB_USER} -p ${DOCKER_HUB_PASSWORD}
              docker build -t ${image}:${imageTag} .
              docker push ${image}:${imageTag}
              """
          }
      }
    }
    stage('运行 Kubectl') {
      container('kubectl') {
        echo "查看 K8S 集群 Pod 列表"
        sh "kubectl get pods"
        sh """
          sed -i "s/<IMAGE>/${image}" deploy/k8s.yaml
          sed -i "s/<IMAGE_TAG>/${imageTag}" deploy/k8s.yaml
          kubectl apply -f deploy/k8s.yaml --namespace devops
        """
      }
    }

    stage('快速回滚?') {
      withCredentials([file(credentialsId: 'kubeconfig', variable: 'KUBECONFIG')]) {
        container('helm') {
          sh "mkdir -p ~/.kube && cp ${KUBECONFIG} ~/.kube/config"
          def userInput = input(
            id: 'userInput',
            message: '是否需要快速回滚？',
            parameters: [
                [
                    $class: 'ChoiceParameterDefinition',
                    choices: "Y\nN",
                    name: '回滚?'
                ]
            ]
          )
          if (userInput == "Y") {
            sh "helm rollback produce-deployment --namespace devops"
          }
        }
      }
    }
  }
}