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Lab 001: Jenkins Installation

Requirements​

The DevOps team of xFusionCorp Industries is planning to setup some CI/CD pipelines. After several meetings they have decided to use Jenkins server. So, we need to setup a Jenkins Server as soon as possible. Please complete the task as per requirements mentioned below:

  1. Install jenkins on jenkins server using yum utility only, and start its service. You might face timeout issue while starting the Jenkins service, please refer this link for help.

  2. Jenkin's admin user name should be theadmin, password should be Adm!n321, full name should be Kareem and email should be <kareem@jenkins.stratos.xfusioncorp.com>.

Note:

  1. For this task, ssh into the jenkins server using user root and password S3curePass from jump host.

  2. After installing the Jenkins server, please click on the Jenkins button on the top bar to access Jenkins UI and follow the on-screen instructions to create an admin user.

Note

This page preserves the original requirement text and documents one complete Jenkins installation and initial configuration workflow.

Prerequisites​

  • SSH access to the Jenkins server (172.16.238.19) as root with password S3curePass.
  • Internet access to download Jenkins packages and plugins.
  • Java and package manager (yum or apt) available on the target system.

Steps​

For the server credentials, check out the Project Nautilus documentation.

Since it was mentioned to use a different login, follow that instead.

# Jenkins Server for CI/CD
sshpass -p 'S3curePass' ssh -o StrictHostKeyChecking=no  root@172.16.238.19

Install Jenkins. Note that you may get a CentOS or Ubuntu OS for your session.

For CentOS:

yum update -y  

sudo yum install epel-release java-17-openjdk wget -y

sudo wget -O /etc/yum.repos.d/jenkins.repo https://pkg.jenkins.io/redhat-stable/jenkins.repo --no-check-certificate
sudo rpm --import http://pkg.jenkins.io/redhat-stable/jenkins.io-2023.key

sudo yum update -y
sudo yum install jenkins -y

For Ubuntu:

apt update
apt search openjdk
apt install openjdk-8-dbg
java -version

# add the key 
wget -q -O - https://pkg.jenkins.io/debian/jenkins.io.key | sudo apt-key add -
sh -c 'echo deb https://pkg.jenkins.io/debian binary/ > \
    /etc/apt/sources.list.d/jenkins.list'

apt install apt-transport-https
apt update
apt install jenkins

Start Jenkins.

sudo systemctl status jenkins
sudo systemctl start jenkins && sudo systemctl status jenkins

Get the initial admin password.

cat /var/lib/jenkins/secrets/initialAdminPassword

Click the Jenkins button at the top right to open the Jenkins page in a new tab.

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Enter the copied admin password.

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If the some of the plugins fail to install, hit retry.

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Provide the admin user according to the instructions.

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Verification​

  • Confirm Jenkins is running and accessible at the Jenkins UI.
  • Confirm admin user theadmin exists with full admin access.
  • Confirm the initial plugin installation completed successfully.
  • Confirm systemctl status jenkins returns active (running).

Resources​