How to Configure a Maven Project in Jenkins ?

Jenkins is a powerful automation server broadly utilized in software development for continuous integration (CI) and continuous delivery (CD) processes, it empowers developers to automate different parts of the product advancement lifecycle, including building, testing, and deploying applications, one of the critical highlights of Jenkins is its extensibility, allowing users to consistently coordinate a large number of tools and technologies.

Maven, then again, is a well known form automation tool fundamentally utilized for Java projects. It improves on the build process by manage project conditions, defining project structures, and automating build lifecycles, maven is broadly taken on in the Java environment and assumes a significant part in ensuring project consistency and dependability.

Configuring an Maven venture in Jenkins unites the qualities of the both tools, empowering developers to automate the build cycle of Java applications productively, by integrating Maven with Jenkins, developers can automate undertakings, for example, compiling source code, running tests, creating documentation, and packaging artifacts into deployable units.

We will dig into the step by step process of configuring an Maven task in Jenkins. We’ll cover fundamental terminologies, make sense of key ideas, and give point by point guidelines to help you set up and arrange your Maven undertakings flawlessly in Jenkins. Furthermore, we’ll incorporate outlines, models, and FAQs to ensure an extensive comprehension of the point.

Primary Terminologies

Jenkins

• Jenkins is an open-source automation server that works with continuous integration (CI) and continuous delivery (CD) processes. It allows designers to automate different undertakings engaged with the product improvement lifecycle, like building, testing, and deploying applications.

Maven

• Maven is a build automation tool essentially utilized for Java projects. It improves on the form interaction by managing project conditions, characterizing project structures, and automating construct lifecycles, maven purposes XML-based project documents called POM (Project Object Model) to design projects.

Plugin

• In Jenkins, a plugin is a product part that broadens its usefulness. Plugins empower Jenkins to coordinate with different tools, advancements, and services, allowing users to modify and automate their CI/CD pipelines. Maven has its own module for Jenkins, which works with the integration of maven tasks with Jenkins.

Pipeline

• A Jenkins pipeline is a progression of stages and steps that define the constant reconciliation and conveyance process for a task, it allows developers to define the whole work process as code, empowering version control, versatility, and repeatability. Jenkins pipelines can be prearranged utilizing either Declarative or Scripted syntax.

Job

• In Jenkins, a job addresses an undertaking or cycle to be executed, like building, testing, or deploying an application. Jobs can be designed with explicit boundaries, triggers, and activities, allowing users to automate different parts of the software improvement lifecycle.

Artifact:

• A artifact is a deployable unit created because of the form interaction. In maven projects, artifact typically normally incorporate gathered code, libraries, resources, and configuration file packaged into JAR, WAR, or different arrangements. Jenkins jobs create artifact during the build cycle, which can be deployed to creation conditions.

POM (Project Object Model)

• In maven projects, the POM is a XML file that define the projects configuration, conditions, and build settings, it serves in as the projects central configuration file and is utilized by maven to deal with the task’s lifecycle, including compilation, testing, packaging, and deployment.

Repository

• A repository is a central storage location for project artifacts and conditions. Maven purposes repositories to download dependencies, plugins, and different resources expected for the build cycle. Jenkins can be arranged to work with maven repositories to determine conditions and distribute artifacts.

Step-by-Step Process to configure a maven project in Jenkins

Step 1: Launch an EC2 Instance

• Go to AWS Console and login with credentials or create new account
• Now launch an EC2 Instance

• Now connect with terminal like git bash, putty, powershell, visual studio code etc..

Step 2: Install Jenkins

• In our local machine we need to install jenkins because we are working on jenkins.
• Before going to install jenkins first to install jenkins run time that is Java. Without java jenkins cannot run.
• Install java by using following commands

sudo yum -y install java-17*

• Now install jenkins packages from official site or follow below commands

sudo wget -O /etc/yum.repos.d/jenkins.repo \
    https://pkg.jenkins.io/redhat-stable/jenkins.repo
sudo rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io-2023.key
sudo yum upgrade

• Now install Jenkins by using following command

sudo yum -y install jenkins

• After successful installation of jenkins. Now start and enable jenkins and also check status of the jenkins and copy administration password to unlock jenkins page.

sudo systemctl start jenkins 
sudo systemctl enable jenkins 
sudo systemctl status jenkins 

Step 3: Install Plugin

• To configure a maven project in jenkins we need to install required plugin i.e Maven Integration plugin
• To install Maven Integration Plugin follow below path to easily installation.
• Manage Jenkins –> Plugins –> Available Plugins –> Maven Integration –> Install

• After completion of installation now add it on tool management because to integrate or configure to jenkins we need to add this maven to jenkins
• Manage Jenkins –> Tool Management –> Add Maven

Step 4: Schedule and run Maven Project using Jenkins

• Go to Dashboard click on New item
• Enter a name to project and choose Maven Project and click on ok

• Give description about project this is optional. There is a no problem when not given description

• In source code management choose git and paste Github repository URL
• Here is the git repository to clone from github https://github.com/Sada-Siva-Reddy07/JavaWebCalculator.git
• Check Branch specifier particularly in jenkins and github repository branch name should must be same

• In build steps there is an option Invoke top-level Maven Targets in that select our installed tool i.e maven
• Here under goals option i am giving package.
• It’s shown below figure

• Click on save and build the project
• Here in console output we can see pom.xml file was updated
• From pom.xml file it was building

Step 5: Verify

• We can verify this from terminal. Go to terminal
• Go the path /home/ec2-user/workspace/clone-job/.git
• we can see JavaWebCalculator in that directory there is list of files which is cloned from git
• In target directory we can check our maven packaged file that is .war file

Conclusion

In conclusion, setting up an maven undertaking in Jenkins is a central stage towards computerizing the form and deployment processes in Java improvement. By integrating Jenkins, an open-source automation server, with Maven, a strong build automation tool, developers can smooth out their continuous integration and continuous delivery (CI/CD) pipelines.

All through this guide, we’ve explored the core ideas and steps engaged with designing an maven projects in Jenkins, we started by presenting Jenkins as a powerful automation server designed to automate different undertakings in programming improvement, including building, testing, and deploying applications. We likewise define key terminologies like maven, plugin, pipeline, job, artifact, POM (Project Object Model), and store to give a solid foundation to figuring out the subject.

We then outlined a detailed step by step process for setting up an maven project in Jenkins. This process included installing Jenkins, designing an maven module, making a Jenkins work, defining build triggers and parameters, and executing the build interaction. All through each step, we gave clear models and screenshots to assist users with envisioning the design cycle and carry out it successfully in their own environments.

Moreover, we addressed normal FAQs connected with designing maven activities in Jenkins, offering pragmatic answers for possible difficulties. By following this aide, designers can bridle the force of computerization to upgrade their product advancement work processes, guarantee predictable and dependable forms, and speed up the conveyance of top notch Java applications. Generally speaking, arranging maven ventures in Jenkins engages engineers to automate repetitive tasks, increment efficiency, and deliver software faster and all the more effectively.

configure a maven project in Jenkins – FAQs

What is the purpose behind configuring an Maven task in Jenkins?

Configuring an Maven project in Jenkins empowers automation of the build cycle, including compilation, testing, and packaging of Java applications, it smoothes out the continuous integration and delivery (CI/CD) pipeline, ensuring proficient software advancement work processes.

What is the distinction among Maven and Jenkins?

Maven is a build automation tool utilized principally for Java projects to oversee project conditions, construct lifecycle, and project structure through an declarative XML file called POM. Jenkins, then again, is a automation server that works with continuous integration and continuous delivery (CI/CD) processes via automation build, test, and deployment tasks.

How does Jenkins incorporate with Maven?

Jenkins integrates with Maven through modules that empower consistent execution of Maven commands inside Jenkins jobs, developers can define maven build steps in Jenkins job configurations to automate the build cycle.

Could Jenkins used with other build tools other than Maven?

Yes, Jenkins upholds integration with an extensive variety of build tools other than Maven, including Ant, Gradle, and MSBuild. Jenkins gives modules to these tools, permitting clients to design and execute construct occupations utilizing their favored build tool.

Could Jenkins trigger maven build automatically?

Yes, Jenkins can trigger maven forms naturally founded on predefined triggers, for example, code focuses on version control systems (e.g., Git), schedule-based triggers, or manual triggers, this automate ensure opportune execution of build processes without manual intervention