How to Set Up Jenkins CI/CD on Ubuntu Server

Jenkins is the most widely-used open-source automation server. This guide sets up Jenkins with a basic deployment pipeline.

Install

sudo apt install openjdk-17-jre -y
curl -fsSL https://pkg.jenkins.io/debian-stable/jenkins.io-2023.key | sudo tee /usr/share/keyrings/jenkins-keyring.asc > /dev/null
echo "deb [signed-by=/usr/share/keyrings/jenkins-keyring.asc] https://pkg.jenkins.io/debian-stable binary/" | sudo tee /etc/apt/sources.list.d/jenkins.list > /dev/null
sudo apt update && sudo apt install jenkins -y
sudo systemctl enable jenkins --now
sudo cat /var/lib/jenkins/secrets/initialAdminPassword

Basic Deployment Pipeline

// Jenkinsfile
pipeline {
    agent any
    stages {
        stage('Checkout') { steps { git 'https://github.com/org/repo.git' } }
        stage('Deploy') {
            steps {
                sh 'rsync -avz ./ user@production:/var/www/app/'
            }
        }
    }
}

Conclusion

Jenkins automates deployments and catches bugs early. Our team configures CI/CD pipelines for automated, reliable deployments.