🚀 BlogApp MERN Stack Project | CI/CD Pipeline 🛠️

Version 2.0 (ArgoCD Deployment Coming Soon!)

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🌟 Project Overview

A full-stack MERN (MongoDB, Express, React, Node.js) blog application with a fully automated CI pipeline powered by Jenkins.
🚧 CD (ArgoCD) in progress for Version 2.0!

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🔄 CI/CD Pipeline Architecture

(Replace with your architecture diagram)

🛠️ Pipeline Highlights

• Jenkins Server: Running on AWS EC2 (t2.medium) 🖥️
• Source Code: Hosted on GitHub 📦
• Docker Agents: Jenkins workers in Docker containers 🐳
• SonarQube: Code quality checks with sonar-scanner 🔍
• Docker Hub: Automated image builds & pushes 🚢

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🧩 Technologies Used

Category	Tools & Services
CI/CD	Jenkins, Docker, SonarQube, Maven, Shell Scripting
Cloud	AWS EC2, Docker Hub
Frontend	React.js, HTML/CSS, npm
Backend	Node.js, Express, MongoDB
Monitoring	SonarQube (Code Quality), Jenkins Pipeline Reports

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🚀 Getting Started

⚙️ Prerequisites

• Jenkins server (with Git, Maven, Docker plugins)
• SonarQube instance (http://54.85.130.134:9000)
• Docker Hub credentials stored in Jenkins Secrets 🔑

🔧 Pipeline Stages

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🔄 CI/CD Pipeline Stages

1. 🧹 System Cleanup

   • Docker system prune
   • npm cache clean
   • Remove old node_modules

2. 📥 Checkout Code

   • Git clone from GitHub repository

3. 🖥️ Frontend Pipeline

   • Install dependencies (npm install)
   • Build React app (npm run build)
   • SonarQube code analysis
   • Docker build & push

4. ⚙️ Backend Pipeline

   • Install dependencies (npm install)
   • Build Node.js app
   • SonarQube code analysis
   • Docker build & push

5. 🧼 Post-Build Cleanup

   • Workspace cleanup
   • Docker logout

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🛠️ Jenkins Pipeline Snippet

pipeline {
    agent any
    environment {
        SONAR_URL = "http://54.85.130.134:9000"
        DOCKER_IMAGE_FRONTEND = "maheshkumars772/frontend:latest"
        DOCKER_IMAGE_BACKEND = "maheshkumars772/backend:latest"
    }
    stages {
        stage('Frontend Build') {
            steps {
                sh 'npm install --legacy-peer-deps'
                sh 'DISABLE_ESLINT_PLUGIN=true npm run build'
            }
        }
        stage('Docker Push') {
            steps {
                sh 'echo "$DOCKER_PASS" | docker login -u "$DOCKER_USER" --password-stdin'
                sh 'docker build -t $DOCKER_IMAGE_FRONTEND ./client'
            }
        }
    }
}

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🔮 Future Enhancements (Version 2.0)

• ArgoCD Integration for GitOps-style deployments 🌐
• Kubernetes cluster setup for staging/production 🚢
• Automated testing with Selenium/Cypress 🧪
• Slack notifications for build status 📢

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👨💻 Contributors

Mahesh Kumar

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Note: This README will auto-update when ArgoCD is integrated! Stay tuned for v2.0! 🎉 🎉