Installing Jenkins on Ubuntu 22.04

Jenkins is an open-source automation server that helps automate various tasks involved in the software development process. It allows developers to build, test, and deploy their applications efficiently. In this guide, we will walk you through the steps to install Jenkins on Ubuntu 22.04.

Step 1: Update System Packages

Before installing any new software, it's recommended to update the system packages to their latest versions. Open the terminal and run the following command:

$ sudo apt update
$ sudo apt upgrade

Step 2: Install Java

Jenkins requires Java to run. To install Java on your Ubuntu 22.04 system, run the following command:

$ sudo apt install openjdk-11-jdk

Step 3: Add Jenkins Repository Key

To download and install Jenkins, you need to add the Jenkins repository key to your system. Run the following commands:

$ wget -q -O - https://pkg.jenkins.io/debian/jenkins.io.key | sudo apt-key add -

Step 4: Add Jenkins Repository

Add the Jenkins repository URL to the apt sources list:

$ sudo sh -c 'echo deb http://pkg.jenkins.io/debian-stable binary/ > /etc/apt/sources.list.d/jenkins.list'

Step 5: Install Jenkins

Now, update the package list and install Jenkins:

$ sudo apt update
$ sudo apt install jenkins

Step 6: Start Jenkins

Start the Jenkins service using the following command:

$ sudo systemctl start jenkins

Step 7: Enable Jenkins Autostart

Enable Jenkins to start automatically on system boot:

$ sudo systemctl enable jenkins

Step 8: Access Jenkins

Jenkins is now up and running on your Ubuntu 22.04 server. You can access the Jenkins web interface by navigating to:

http://your_server_ip_or_domain:8080

You'll be prompted to enter the initial administrator password. Retrieve the password by running the following command:

$ sudo cat /var/lib/jenkins/secrets/initialAdminPassword

Copy the generated password and paste it in the Jenkins web interface to complete the setup.

Congratulations! You have successfully installed Jenkins on Ubuntu 22.04. Now you can use Jenkins to automate your software development processes.