pipeline { // 直接上k8s，用k8s来管理docker
    agent {
        node {
            label "maven"
        }
    }

    parameters {
        choice(
          description: "你需要选择哪条分支进行构建?",
          name: "branch_name",
          choices: ["master", "feature/k8s_deploy"]
        )
    }
    environment {
        // 自建镜像仓库地址
        docker_hub = "k8s-harbor:30002"

        // 自建harbor仓库的namespace
        docker_hub_namespace = "tmall"

        // 在jenknis或kubesphere上面的凭证
        docker_hub_id = "tmall-zhangjialin-myself-harbor-account"

        // k8s 上面的 namespace
        k8s_namespace = "tmall-project"
        GIT_COMMIT_ID = sh(returnStdout: true, script: 'git rev-parse --short HEAD').trim()
        // BUILD_NUMBER 这个变量从jenkins传递过来
        current_build_number = "${BUILD_NUMBER}"
        // 在k8s上面配置的id
        KUBECONFIG_CREDENTIAL_ID = "tmall-kubeconfig"
    }

    stages {
        stage ("打印相关变量") {
            steps{
                echo "docker_hub_namespace信息为: ${docker_hub_namespace}"
                // 获取commit信息，用于后面打tag
                echo "commit信息为：${env.GIT_COMMIT_ID}"
                echo "current_build_number信息为：${env.current_build_number}"
                script {
                    // 本端tag名
                    env.local_tag = "tmall:${current_build_number}_${GIT_COMMIT_ID}"
                    // 远端tag名，必须以这种方式命令，才能push到远端
                    env.remote_tag = "${docker_hub}/${docker_hub_namespace}/${local_tag}"
                    echo "local_tag信息为：${env.local_tag}"
                    echo "remote_tag信息为：${env.remote_tag}"
                }
            }
        }
        stage("checkout代码") {
            steps {
                //git branch: "${branch_name}", credentialsId: 'zhangjialin-youlai-mall-pingzheng', url: 'https://gitee.com/youlaitech/youlai-mall.git'

                //checkout([
                    //$class: 'GitSCM',
                    //branches: [[name: "${branch_name}"]],
                    //extensions: [[$class: 'CloneOption', depth: 1, noTags: false, reference: '', shallow: true]],
                    //userRemoteConfigs: [[credentialsId: 'zhangjialin-youlai-mall-pingzheng', url: 'https://gitee.com/youlaitech/youlai-mall.git']]])
                sh "du -h --max-depth=1"
            }
        }
        stage("打包镜像") {
            steps {
                script {
                    container ('maven') {
                        // 最外边
                        sh "mvn clean install -Dmaven.test.skip=true"
                        sh "docker build -t ${env.local_tag} -f ./Dockerfile ."
                        withCredentials([usernamePassword(credentialsId: "${docker_hub_id}", passwordVariable: 'DOCKER_PASSWORD', usernameVariable: 'DOCKER_USERNAME')]) {
                            sh 'echo "$DOCKER_PASSWORD" | docker login http://k8s-harbor:30002 -u "$DOCKER_USERNAME" --password-stdin'
                            sh "docker tag ${env.local_tag} ${env.remote_tag}"
                            sh "docker push  ${env.remote_tag}"
                        }
                    }
                }
            }
        }
        stage("自动部署至k8s") {
            agent none
            steps {
                container ("maven") {
                    // 这种方式启k8s是官方推荐的
                    sh 'envsubst < deploy.yaml | kubectl apply -f -'
                }
            }
        }
    }
}