Jenkins is an open source automation server written in Java. Basically, Jenkins provides a continuous integration (CI) and continuous delivery (CD) solution to accelerate the software delivery process.

sudo su
yum update

java -version
yum install java-1.8.0

1.) Download the latest Jenkins package from the Red Hat Repository

wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat/jenkins.repo

2.) Import the verification key using the package manager RPM

rpm --import https://pkg.jenkins.io/redhat/jenkins.io.key

Note: If you've previously imported the key from Jenkins, the "rpm --import" will fail because you already have a key. Please ignore that and move on.

3.) Install the Jenkins package by issuing the following command

yum install -y jenkins

You can start the jenkins service by issuing the following command

service jenkins start

You can check the Jenkins process running on your server by issuing the following command

ps -aux | grep jenkins

You can ensure that Jenkins will start following a system reboot by issuing the following command

chkconfig jenkins on

As needed, you can stop the Jenkins process by issuing the following command

service jenkins stop

You can restart the Jenkins process by issuing the following command

service jenkins restart

1.) Access Jenkins through browser

http://YOUR-SERVER-PUBLIC-IP:8080

2.) Now copy the default admin password and paste it to unblock the Jenkins

cat /var/lib/jenkins/secrets/initialAdminPassword

3.) Choose install suggested plugins

4.) Create your first admin user