For those of you who didn’t know, Jenkins is an open source continuous integration tool written in Java. Jenkins provides continuous integration services for software development. It is a server-based system running in a servlet container such as Apache Tomcat. It supports SCM tools including AccuRev, CVS, Subversion, Git, Mercurial, Perforce, Clearcase and RTC, and can execute Apache Ant and Apache Maven based projects as well as arbitrary shell scripts and Windows batch commands.
This article assumes you have at least basic knowledge of linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple. I will show you through the step by step installation Jenkins on CentOS 7.
Step 1. First of all we have to install java JDK.
yum install java-1.7.0-openjdk wget
Step 2. Install Apache web server.
yum install httpd
Step 3. Add jenkins repository packages.
sudo wget -O /etc/yum.repos.d/jenkins.repo http://pkg.jenkins-ci.org/redhat/jenkins.repo
sudo rpm --import https://jenkins-ci.org/redhat/jenkins-ci.org.key
Step 4. Install Jenkins.
yum install jenkins
Step 5. Configure firewall.
firewall-cmd --zone=public --add-port=8080/tcp --permanent
Step 6. Start Jenkins service.
sudo /etc/init.d/jenkins restart
systemctl restart jenkins.service
Jenkins will write log files to /var/log/jenkins/jenkins.log. Check this file if you are troubleshooting Jenkins.
Step 7. Access Jenkins.
Finally, after the installation is complete you can visit the following address in your browser http://your-ip-address:8080
Congratulation’s! You have successfully installed jenkins. Thanks for using this tutorial for installing jenkins web server on CentOS 7 systems.