Jenkins Installation & Simple Job Configuration on Ubuntu

Install Jenkins on ubuntu

Install openjdk8

Execute the following commands in order

sudo apt-get update
sudo apt-cache search openjdk

Note: Select any suitable package from the top. This documentation selects the openjdk-8-jdk

sudo apt-get install openjdk-8-jdk

Prepare your system for Jenkins in ubuntu

Execute the following commands

wget -q -O - https://pkg.jenkins.io/debian/jenkins-ci.org.key | sudo apt-key add -
echo deb https://pkg.jenkins.io/debian-stable binary/ | sudo tee /etc/apt/sources.list.d/jenkins.list
sudo apt-get update

Before executing install of Jenkins lets try to find the possible Jenkins versions available

sudo apt-cache madison jenkins

Installing Jenkins

sudo apt-get install jenkins  -y

Jenkins Post-Install Configuration

• Navigate to the url http://<jenkinsserverip&gt;:8080
• Find the contents of /var/jenkins_home/secrets/initialAdminPassword and enter in the Administrator Password Textbox and click on continue
• Now Select the Install Selected plugins in the Customize Jenkins Page
• Wait till all the plugin installations become successful and then you will be navigated to Create First Admin User Page. Enter the details and click on save and continue

• After confirming the instance configuration, You should see the Jenkins is ready page
• Click on Start using Jenkins Page and you will be redirected to Jenkins home page.

Configure Git, Maven and Build Sample Java Project

• SSH into Jenkins server and Ensure Git, Maven are installed.

• In this example lets build game of life from here

• Click on new Item and select Freestyle project

• Enter the necessary info in the Description in General Tab and Click on Source Code Management Tab

• Select Git and Enter the Repository URL and click on Build tab

• Select Invoke top-level Maven targets after clicking on add build step

• Enter package in Goals section and click on save.

• Now Select Build Now and you should see the update in Build History section

• Click on the Build number as highlighted and select console output to see the build logs

• Wait till job is succeded