A k8s插件

pipeline {
  agent {
    kubernetes {
      cloud 'kubernetes'
      slaveConnectTimeout 1200
      workspaceVolume emptyDirWorkspaceVolume()
      yaml '''
kind: Pod
metadata:
  name: jenkins-agent
spec:
  containers:
  - args: [\\'$(JENKINS_SECRET)\\', \\'$(JENKINS_NAME)\\']
    image: '192.168.10.15/kubernetes/jnlp:alpine'
    name: jnlp
    imagePullPolicy: IfNotPresent
  - command:
      - "cat"
    image: "192.168.10.15/kubernetes/alpine:latest"
    imagePullPolicy: "IfNotPresent"
    name: "date"
    tty: true
  - command:
      - "cat"
    image: "192.168.10.15/kubernetes/kubectl:apline"
    imagePullPolicy: "IfNotPresent"
    name: "kubectl"
    tty: true
  restartPolicy: Never
'''
    }
  }
  environment {
    MY_KUBECONFIG = credentials('kubernetes-cluster')
  }
  stages {
    stage('Data') {
      steps {
        container(name: 'date') {
          sh """
            date
          """
        }
      }
    }
    stage('echo') {
      steps {
        container(name: 'date') {
          sh """
            echo 'k8s is pod'
          """
        }
      }
    }
    stage('kubectl') {
      steps {
        container(name: 'kubectl') {
          sh """
            kubectl get pod -A  --kubeconfig $MY_KUBECONFIG
          """
        }
      }
    }
  }
}

B

1. k8s模板 yml （{}动态参数）
apiVersion: apps/v1
kind: Deployment
metadata:
  name: {APP_NAME}-deployment
  labels:
    app: {APP_NAME}
spec:
  replicas: 1
  selector:
    matchLabels:
      app: {APP_NAME}
  template:
    metadata:
      labels:
        app: {APP_NAME}
    spec:
      containers:
      - name: {APP_NAME}
        image: {IMAGE_URL}:{IMAGE_TAG}
        ports:
        - containerPort: 40080
        env:
          - name: SPRING_PROFILES_ACTIVE
            value: {SPRING_PROFILE}
2. jenkins 文件
// 需要在jenkins的Credentials设置中配置jenkins-harbor-creds、jenkins-k8s-config参数
pipeline {
    agent any
    environment {
        HARBOR_CREDS = credentials('jenkins-harbor-creds')
        K8S_CONFIG = credentials('jenkins-k8s-config')
        GIT_TAG = sh(returnStdout: true,script: 'git describe --tags --always').trim()
    }
    parameters {
        string(name: 'HARBOR_HOST', defaultValue: '172.23.101.66', description: 'harbor仓库地址')
        string(name: 'DOCKER_IMAGE', defaultValue: 'tssp/pipeline-demo', description: 'docker镜像名')
        string(name: 'APP_NAME', defaultValue: 'pipeline-demo', description: 'k8s中标签名')
        string(name: 'K8S_NAMESPACE', defaultValue: 'demo', description: 'k8s的namespace名称')
    }
    stages {
        stage('Maven Build') {
            when { expression { env.GIT_TAG != null } }
            agent {
                docker {
                    image 'maven:3-jdk-8-alpine'
                    args '-v $HOME/.m2:/root/.m2'
                }
            }
            steps {
                sh 'mvn clean package -Dfile.encoding=UTF-8 -DskipTests=true'
                stash includes: 'target/*.jar', name: 'app'
            }
        }
        stage('Docker Build') {
            when { 
                allOf {
                    expression { env.GIT_TAG != null }
                }
            }
            agent any
            steps {
                unstash 'app'
                sh "docker login -u ${HARBOR_CREDS_USR} -p ${HARBOR_CREDS_PSW} ${params.HARBOR_HOST}"
                sh "docker build --build-arg JAR_FILE=`ls target/*.jar |cut -d '/' -f2` -t ${params.HARBOR_HOST}/${params.DOCKER_IMAGE}:${GIT_TAG} ."
                sh "docker push ${params.HARBOR_HOST}/${params.DOCKER_IMAGE}:${GIT_TAG}"
                sh "docker rmi ${params.HARBOR_HOST}/${params.DOCKER_IMAGE}:${GIT_TAG}"
            }
            
        }
        stage('Deploy') {
            when { 
                allOf {
                    expression { env.GIT_TAG != null }
                }
            }
            agent {
                docker {
                    image 'lwolf/helm-kubectl-docker'
                }
            }
            steps {
                sh "mkdir -p ~/.kube"
                sh "echo ${K8S_CONFIG} | base64 -d > ~/.kube/config"
                sh "sed -e 's#{IMAGE_URL}#${params.HARBOR_HOST}/${params.DOCKER_IMAGE}#g;s#{IMAGE_TAG}#${GIT_TAG}#g;s#{APP_NAME}#${params.APP_NAME}#g;s#{SPRING_PROFILE}#k8s-test#g' k8s-deployment.tpl > k8s-deployment.yml"
                sh "kubectl apply -f k8s-deployment.yml --namespace=${params.K8S_NAMESPACE}"
            }
            
        }
        
    }
}