Jenkins is an open-source automation server that helps to automate the repetitive tasks involved in the software development process, which includes building, testing, and deployments.
Jenkins was forked from the Oracle Hudson project and written in Java.
Here, we will see how to install Jenkins on Ubuntu 20.04 / Ubuntu 18.04.
Since Jenkins is written in Java, it requires Java 8 or Java 11 to run. Here, I will install the OpenJDK 11 for Jenkins installation.
sudo apt update
sudo apt install -y default-jre apt-transport-https wget
If you want to use the Oracle Java in place of OpenJDK, then use any one of the links to install it.
READ: How To Install Oracle Java on Ubuntu 20.04
READ: How To Install Oracle Java on Ubuntu 18.04
Verify the Java version after the installation.
java -version
Output:
openjdk version "11.0.8" 2020-07-14
OpenJDK Runtime Environment (build 11.0.8+10-post-Ubuntu-0ubuntu120.04)
OpenJDK 64-Bit Server VM (build 11.0.8+10-post-Ubuntu-0ubuntu120.04, mixed mode, sharing)
Jenkins provides an official repository for its packages. To use the Jenkins repository, first, we will need to add the Jenkins public key to the system.
wget -q -O - https://pkg.jenkins.io/debian-stable/jenkins.io.key | sudo apt-key add -
Then, add the Jenkins repository to your system.
echo "deb https://pkg.jenkins.io/debian-stable binary/" | sudo tee /etc/apt/sources.list.d/jenkins.list
Install Jenkins package using the apt command.
sudo apt update
sudo apt install -y jenkins
The Jenkins service should now be up and running. You can check the status of the Jenkins service using the below command.
sudo systemctl status jenkins
#ubuntu #jenkins #ubuntu 18.04 #ubuntu 20.04