How to install Jenkins on Ubuntu 22.04

Jenkins is an open-source automation server widely used for continuous integration and continuous delivery (CI/CD) pipelines. It simplifies the process of building, testing, and deploying software projects. Installing Jenkins on Ubuntu 22.04 is straightforward and can be accomplished in just a few steps.

Prerequisites

Before installing Jenkins, ensure you have the following prerequisites:

1. A server or virtual machine running Ubuntu 22.04.
2. Access to a terminal with sudo privileges.

Commands

$ sudo apt-get update -y && sudo apt-get upgrade -y

$ sudo systemctl enable apache2 && sudo systemctl start apache2

$ sudo systemctl status apache2

$ sudo apt install openjdk-11-jdk -y

curl -fsSL https://pkg.jenkins.io/debian-stable/jenkins.io-2023.key | sudo tee \
  /usr/share/keyrings/jenkins-keyring.asc > /dev/null

echo deb [signed-by=/usr/share/keyrings/jenkins-keyring.asc] \
  https://pkg.jenkins.io/debian-stable binary/ | sudo tee \
  /etc/apt/sources.list.d/jenkins.list > /dev/null

$ sudo apt install jenkins -y

$ sudo systemctl status jenkins

$ cd /etc/apache2/sites-available/

$ sudo nano jenkins.conf

======================================================================

<Virtualhost *:80>
    ServerName        yourdomain.com
    ProxyRequests     Off
    ProxyPreserveHost On
    AllowEncodedSlashes NoDecode

    <Proxy http://localhost:8080/*>
      Order deny,allow
      Allow from all
    </Proxy>

    ProxyPass         /  http://localhost:8080/ nocanon
    ProxyPassReverse  /  http://localhost:8080/
    ProxyPassReverse  /  http://yourdomain.com/
</Virtualhost>
=============================================================================

$ sudo a2ensite jenkins

$ sudo a2enmod proxy

$ sudo a2enmod proxy_http

$ sudo a2enmod headers

$ sudo systemctl restart apache2

cat /var/lib/jenkins/secrets/initialAdminPassword

 

Video: How to Install Jenkins on Ubuntu 22.04