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Automated Node.js Deployment with Docker & Jenkins 🚀

A Node.js application containerized with Docker and deployed using a Jenkins CI/CD pipeline for automated deployment.

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📌 Project Overview

This project demonstrates:

✅ Building and running a Node.js application inside a Docker container.

✅ Automating CI/CD with Jenkins, enabling seamless deployments.

✅ Pushing the Docker image to Docker Hub.

✅ Deploying the container automatically on each pipeline execution.

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🛠 Technologies Used

• Node.js – Backend runtime environment

• Docker – Containerization platform

• Jenkins – CI/CD automation tool

• GitHub – Version control system

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📂 Project Structure

node-docker-ci-cd/
│-- Dockerfile # Defines the container environment
│-- Jenkinsfile # Automates CI/CD pipeline
│-- package.json # Node.js dependencies
│-- index.js # Main application file
│-- README.md # Documentation

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🚀 Setup & Installation

1️⃣ Clone the Repository

git clone https://github.com/DharmikDevops/node-docker-ci-cd.git
cd node-docker-ci-cd

2️⃣ Run Locally (Without Docker)

npm install
node index.js

✅ The application will be available at http://localhost:3000

3️⃣ Run with Docker

docker build -t dharmikmala/my-node-docker-app:latest .
docker run -d -p 3000:3000 dharmikmala/my-node-docker-app:latest

✅ The application will be running in a Docker container.

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🤖 Jenkins CI/CD Pipeline

This project includes a Jenkinsfile that automates:

✅ Cloning the repository from GitHub

✅ Installing dependencies

✅ Building a Docker image

✅ Running tests (Placeholder for future enhancements)

✅ Pushing the Docker image to Docker Hub

✅ Deploying the application automatically

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🔄 Automated Deployment

The pipeline:

✔ Stops & removes any existing container

✔ Runs the new container on port 3000

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🔧 Jenkins Pipeline Execution

1️⃣ Add Docker Hub credentials in Jenkins (dockerhub-credentials).

2️⃣ Create a Jenkins pipeline job and link it to this GitHub repository.

3️⃣ Trigger the pipeline to automatically build, push, and deploy the container.

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📦 Docker Hub Repository

🔹 Docker Image: dharmikmala/my-node-docker-app

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✅ Verify Deployment

Check if the container is running:

docker ps

Access the application at:

http://<server-ip>:3000

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