Jenkinsfile里定义对象和函数，获取git提交人， 发送钉钉通知

自从开始使用Jenkinsfile作为Jenkins配置后就一发不可收，因为开发者自定义CI脚本实在太方便了。

比如，最近开发的以一个项目涉及多人，提交冲突挺多的，有的人自己没编译通过就提交了，导致后面的人被阻塞，所以我们需要告诉他： 提交失败了。

首先，Jenkinsfile应该怎么用呢， 参见： https://www.cnblogs.com/woshimrf/p/gitlab-with-jenkins.html

定义Jenkinsfile的时候想要钉钉通知，首先获取git提交人：

最外层：

class MyChange {
   String author;
   String msg;
}
@NonCPS
def getChanges()
{
    def changeLogSets = currentBuild.changeSets
    for (int i = 0; i < changeLogSets.size(); i++)
    {
        def entries = changeLogSets[0].items
        for (int j = 0; j < entries.length; j++)
        {
            def entry = entries[0]
            def change = new MyChange()
            change.author = entry.author
            change.msg = entry.msg
            return change
        }
    }

}

然后在node节点里定义变量

ding_group_access_token = "c20d35654da77a99d8869e04xxxxxxxd1a81aasssa2"
ding_jenkinsUrl = "http://jenkins.ryan.com/view/我的view名称/"

最后在失败的时候通知：

stage('Compile And UnitTest') {
    echo "2.Compile the code"
    try {
        sh "mvn clean install"
    } catch (Exception ex) {
        updateGitlabCommitStatus name: 'build', state: 'failed'
        def change = getChanges()
        dingTalk accessToken: "${ding_group_access_token}", imageUrl: '', jenkinsUrl: "${ding_jenkinsUrl}", message: "@所有人 构建失败@$change.author $change.msg" , notifyPeople: "$change.author"
        throw ex;
    } finally {

    }

    updateGitlabCommitStatus name: 'build', state: 'success'
}

最终Jenkinsfile可能是这个样子的

文件位置
my-project
- .deploy
   - Jenkinsfile
- src

在jenkins里创建pipeline job, 并指定Jenkinsfile

Jenkinsfile

class MyChange {
   String author;
   String msg;
}
@NonCPS
def getChanges()
{
    def changeLogSets = currentBuild.changeSets
    for (int i = 0; i < changeLogSets.size(); i++)
    {
        def entries = changeLogSets[0].items
        for (int j = 0; j < entries.length; j++)
        {
            def entry = entries[0]
            def change = new MyChange()
            change.author = entry.author
            change.msg = entry.msg
            return change
        }
    }

}

node {
    properties([gitLabConnection('gitlab-bigdata')])

    stage('Prepare') {
        echo "1.Prepare Stage"
        checkout scm
        updateGitlabCommitStatus name: 'build', state: 'pending'
        mvn_module = '多模块项目mvn子模块'
        pom = readMavenPom file: "${mvn_module}/pom.xml"
        k8s_label = "项目在k8s集群中的名称"
        docker_host = "自己的docker私服"
        ding_group_access_token = "c20d35654da77a99d8869e041xxxac7d6699xxxxxx"
        ding_jenkinsUrl = "http://jenkins.ryan.com/view/job所在的view/"
        //要部署的k8s集群, 默认是杭州(config-hangzhou), 可选上海(config-shanghai)
        k8s_cluster_node = "config-hangzhou"
        //部署环境
        profile=""
        if(env.BRANCH_NAME == 'dev') {
            profile = "dev"
            k8s_cluster_node = "config-dev"
        }
        if(env.BRANCH_NAME == 'test') {
            profile = "test"
            k8s_cluster_node = "config-shanghai"
        }
        if(env.BRANCH_NAME == 'master') {
            profile = "prod"
            k8s_cluster_node = "config-hangzhou"
        }

        img_name = "${pom.groupId}-${pom.artifactId}"
        docker_img_name = "${docker_host}/${img_name}"
        echo "group: ${pom.groupId}, artifactId: ${pom.artifactId}, version: ${pom.version}"
        echo "docker-img-name: ${docker_img_name}"
        script {
            build_tag = sh(returnStdout: true, script: 'git rev-parse --short HEAD').trim()
            build_tag = "${env.BRANCH_NAME}-${build_tag}"

            currentBuild.displayName = BUILD_NUMBER + "_" +build_tag
        }
    }

    stage('Compile And UnitTest') {
        echo "2.Compile the code"
        try {
            sh "mvn clean install"
        } catch (Exception ex) {
            updateGitlabCommitStatus name: 'build', state: 'failed'
            def change = getChanges()
            dingTalk accessToken: "${ding_group_access_token}", imageUrl: '', jenkinsUrl: "${ding_jenkinsUrl}", message: "@所有人 构建失败@$change.author $change.msg" , notifyPeople: "$change.author"
            throw ex;
        } finally {

        }

        updateGitlabCommitStatus name: 'build', state: 'success'
    }

    if (env.BRANCH_NAME == 'dev' ||env.BRANCH_NAME == 'test' || env.BRANCH_NAME == 'master') {
        stage('Build Docker Image') {
            echo "4.Build Docker Image Stage"
            sh "docker build -t ${docker_img_name}:${build_tag} " +
                    " --build-arg JAR_FILE=target/${mvn_module}.jar " +
                    " --build-arg profile=${profile} " +
                    " -f ${mvn_module}/.deploy/Dockerfile ./${mvn_module}"
        }

        stage('Push Docker Image') {
            echo "5.Push Docker Image Stage"
            //sh "mvn deploy -Dmaven.test.skip=true"
            sh "docker tag ${docker_img_name}:${build_tag} ${docker_img_name}:latest"
            sh "docker tag ${docker_img_name}:${build_tag} ${docker_img_name}:${pom.version}"
            withCredentials([usernamePassword(credentialsId: 'docker-register-sz-shuwei', passwordVariable: 'dockerPassword', usernameVariable: 'dockerUser')]) {
                sh "docker login -u ${dockerUser} -p ${dockerPassword} ${docker_host}"
                sh "docker push ${docker_img_name}:latest"
                sh "docker push ${docker_img_name}:${pom.version}"
                sh "docker push ${docker_img_name}:${build_tag}"
            }
        }

        stage("Deploy to k8s - ${profile}") {
            echo "6. Deploy Stage"

            updateGitlabCommitStatus name: 'deploy', state: 'pending'
            sh "sed -i 's/<IMG_NAME>/${img_name}/g;s/<IMG_TAG>/${build_tag}/g;s/<k8s-label>/${k8s_label}/g' ${WORKSPACE}/${mvn_module}/.deploy/${profile}-k8s.yaml"
            sh "kubectl --kubeconfig /home/jenkins/.kube/${k8s_cluster_node} " +
                    "apply -f ${WORKSPACE}/${mvn_module}/.deploy/${profile}-k8s.yaml --record"
            sh "sleep 5"
            echo "创建的实例："
            sh "kubectl --kubeconfig /home/jenkins/.kube/${k8s_cluster_node}  get po -o wide | grep ${k8s_label}"
            echo "您的应用svc: "
            sh "kubectl --kubeconfig /home/jenkins/.kube/${k8s_cluster_node}  get svc | grep ${k8s_label}"

            updateGitlabCommitStatus name: 'deploy', state: 'success'
        }
    }

}