How to install Jenkins on Ubuntu 18.04 Bionic

Here we go, proceed with the below steps.

• Mandatory requirement : Jave aka OpenJDK.

$  sudo apt install openjdk-8-jdk



Once installed verify the installation using the below command.

$  java -version

• Installing Jenkins.

Official Ubuntu ships with older versions of jenkins, why lag behind let's add the new sources to install the latest version.

• Add repository key first.

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

• Once you got an OK confirmation, let's proceed to add debian package repository address to the our server's source list.

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

• Now we are almost ready to install jenkins, lets make an update now

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

• Here we go, install jenins now

$  sudo apt install jenkins

• Start Jenkins

$  sudo systemctl start jenkins

Access Admin Password to login to Jenkins UI.

Open CLI, hit below cat command and grab the initial login password.

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

Login to UI.

$  http://<Your Jenkins Server IP>:8080/

Further steps are self explanatory, install suggested plugins and change the initial admin password with your.