Automate Java Project Build and Deployment with Jenkins Pipeline and Ansible

Overview

The purpose is to use Jenkins to select a branch, build a JAR package, send it to a backend server, and start the Java project via a server script.

Step 1: Choose Build Retention

Step 2: Parameterized Build

Step 3: Define Pipeline

The pipeline syntax follows the declarative model. Example snippet:

pipeline {
    agent any
    stages {
        stage('拉取代码') {
            steps {
                // Add content
            }
        }
        // Additional stages omitted for brevity
    }
}

Pipeline Stages

Pull Code

Uses

checkout([$class: 'GitSCM', branches: [[name: '${tag}']], extensions: [], userRemoteConfigs: [[credentialsId: '100b584e-7f67-466f-8b93-9b9038e117a0', url: 'https://git.ibimfish.cn/Suzhou/pond.git']]])

to fetch the specified tag.

Compile and Package

Runs

sh 'mvn clean package install -Dmaven.test.skip=true -DarchetypeCatalog=local'

.

Copy JAR to Remote Server

Uses Ansible:

sh 'ansible tomcat -m copy -a "src=/root/.jenkins/workspace/pipeline-pond/pond/target/pond.jar dest=/root/upload/"'

.

Start Application Script

Executes via sshPublisher with commands:

sshPublisher(publishers: [sshPublisherDesc(configName: '192.168.2.204', transfers: [sshTransfer(cleanRemote: false, excludes: '', execCommand: '''cd /pipeline-pond
source /etc/profile
bash up.sh''', execTimeout: 120000, flatten: false, makeEmptyDirs: false, noDefaultExcludes: false, patternSeparator: '[, ]+', remoteDirectory: '', remoteDirectorySDF: false, removePrefix: '', sourceFiles: '', usePty: true)], usePromotionTimestamp: false, useWorkspaceInPromotion: false, verbose: false)])

Final Pipeline Script

pipeline {
    agent any
    stages {
        stage('拉取代码') {
            steps {
                checkout([$class: 'GitSCM', branches: [[name: '${tag}']], extensions: [], userRemoteConfigs: [[credentialsId: '100b584e-7f67-466f-8b93-9b9038e117a0', url: 'https://git.ibimfish.cn/Suzhou/pond.git']]])
            }
        }
        // stage('切换分支') { ... } // Skipped because tag is used
        stage('编译打包') {
            steps {
                sh 'mvn clean package install -Dmaven.test.skip=true -DarchetypeCatalog=local'
            }
        }
        stage('拷贝jar包') {
            steps {
                sh 'ansible tomcat -m copy -a "src=/root/.jenkins/workspace/pipeline-pond/pond/target/pond.jar dest=/root/upload/"'
            }
        }
        stage('启动脚本') {
            steps {
                sshPublisher(publishers: [sshPublisherDesc(configName: '192.168.2.204', transfers: [sshTransfer(execCommand: '''cd /pipeline-pond
source /etc/profile
bash up.sh''')])])
            }
        }
    }
}

Result

Successful execution screenshots show the pipeline completing and the application starting on the remote server.