How to Install Jenkins in Rocky Linux(9.5)

To Install Jenkins on Rocky Linux 9.5

Introduction

Jenkins is a powerful application that facilitates continuous integration and continuous delivery of projects across various platforms. As a free and open-source tool, it is capable of managing a wide range of builds and continuous integration processes. Additionally, Jenkins can be integrated with numerous testing and deployment technologies. This tutorial will provide guidance on how to utilize Jenkins for the continuous building and testing of your software projects.

Procedure

Step 1: Check the OS Version

[root@localhost linuxhelp]# cat /etc/os-release
NAME="Rocky Linux"
VERSION="9.5 (Blue Onyx)"
ID="rocky"
ID_LIKE="rhel centos fedora"
VERSION_ID="9.5"
PLATFORM_ID="platform:el9"
PRETTY_NAME="Rocky Linux 9.5 (Blue Onyx)"
ANSI_COLOR="0;32"
LOGO="fedora-logo-icon"
CPE_NAME="cpe:/o:rocky:rocky:9::baseos"
HOME_URL="https://rockylinux.org/"
VENDOR_NAME="RESF"
VENDOR_URL="https://resf.org/"
BUG_REPORT_URL="https://bugs.rockylinux.org/"
SUPPORT_END="2032-05-31"
ROCKY_SUPPORT_PRODUCT="Rocky-Linux-9"
ROCKY_SUPPORT_PRODUCT_VERSION="9.5"
REDHAT_SUPPORT_PRODUCT="Rocky Linux"
REDHAT_SUPPORT_PRODUCT_VERSION="9.5"

Step 2: Add Jenkins Repository

[root@localhost linuxhelp]# wget -O /etc/yum.repos.d/jenkins.repo \
    https://pkg.jenkins.io/redhat-stable/jenkins.repo
--2025-02-21 15:19:03--  https://pkg.jenkins.io/redhat-stable/jenkins.repo
Resolving pkg.jenkins.io (pkg.jenkins.io)... 151.101.158.133, 2a04:4e42:25::645
Connecting to pkg.jenkins.io (pkg.jenkins.io)|151.101.158.133|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 85
Saving to: ‘/etc/yum.repos.d/jenkins.repo’
[root@localhost linuxhelp]# rpm --import https://pkg.jenkins.io/redhat-stable/jenkins.io-2023.key

Step 3: Upgrade your Repository

[root@localhost linuxhelp]# dnf upgrade
Last metadata expiration check: 0:00:11 ago on Friday 21 February 2025 03:19:14 PM.
Dependencies resolved.
Nothing to do.
Complete!

Step 4: Install Java OpenJDK

[root@localhost linuxhelp]# dnf install java-17-openjdk.x86_64
Last metadata expiration check: 0:03:01 ago on Friday 21 February 2025 03:19:14 PM.
Dependencies resolved.
Complete!

Step 5: Install Jenkins

[root@localhost linuxhelp]# dnf install jenkins
Last metadata expiration check: 0:04:47 ago on Friday 21 February 2025 03:19:14 PM.
Dependencies resolved
Installed:
  jenkins-2.492.1-1.1.noarch                                                                                                           

Complete!

Step 6: Reload the System Daemon Service

[root@localhost linuxhelp]# systemctl daemon-reload

Step 7: Start & Enable Jenkins Service

[root@localhost linuxhelp]# systemctl start jenkins
[root@localhost linuxhelp]# systemctl enable jenkins
Created symlink /etc/systemd/system/multi-user.target.wants/jenkins.service → /usr/lib/systemd/system/jenkins.service.
[root@localhost linuxhelp]# systemctl status jenkins
● jenkins.service - Jenkins Continuous Integration Server
     Loaded: loaded (/usr/lib/systemd/system/jenkins.service; enabled; preset: disabled)
     Active: active (running) since Fri 2025-02-21 15:27:29 IST; 20s ago
   Main PID: 52071 (java)

Step 8: Add Firewall Permission for 8080 & http

[root@localhost linuxhelp]# firewall-cmd --zone=public --add-port=8080/tcp --permanent
success
[root@localhost linuxhelp]# firewall-cmd --zone=public --add-service=http --permanent
success
[root@localhost linuxhelp]# firewall-cmd --reload
success

Step 9: Browse your IP with Port Number 8080

Step 10: Copy the Password in given Location

[root@localhost linuxhelp]# cat /var/lib/jenkins/secrets/initialAdminPassword
682adaa29f2f48049e4fc4149c5edee2

Step 11: Install the Plugins

Conclusion:

We have reached the end of this article. In this guide, we have walked you through the steps required to install Jenkins in Rocky Linux 9.5