Dockerized Node.js Employee Directory with Kind Cluster Deployment

Architecture

Overview

This project demonstrates deploying a simple Node.js employee directory application using Docker and Kubernetes. The app is deployed in a local Kind (Kubernetes in Docker) cluster and managed through a CI/CD pipeline for automated builds, deployments, and updates.

Features

• Dockerized App: Packaged Node.js app for easy deployment.

• Kind Cluster: Lightweight Kubernetes cluster for local testing.

• Scalability: Supports multiple replicas for load balancing.

• Automated CI/CD: Builds and deploys via Jenkins.

• Local Access: Access app locally through port 5000.

Prerequisites

• Docker

• Kind

• Kubernetes CLI (kubectl)

• Jenkins with Docker and Kubernetes plugins

• Docker Hub account

Steps to Deploy

1. Clone the Repository

git clone https://github.com/AbdullahTarar/dockerized-node-app.git   
cd dockerized-node-app`  

2. Run Locally (Optional)

docker build -t <name of the container>:latest . 
docker run -p 5000:5000 <name of the container>:latest`  

3. Set Up a Kind Cluster

curl -Lo ./kind https://kind.sigs.k8s.io/dl/latest/kind-linux-amd64 
chmod +x ./kind sudo mv ./kind /usr/local/bin/kind  
kind create cluster --name node-app-cluster    
kubectl cluster-info --context kind-node-app-cluster 
docker ps -a

4. Deploy the App

kubectl apply -f <deployment.yaml> 
kubectl apply -f <service.yaml>   
kubectl port-forward svc/node-app 5000:5000

Open the app at http://localhost:5000.

5. Set Up CI/CD with Jenkins

• Install Jenkins and plugins (Docker, GitHub, Kubernetes CLI).

• Add Docker Hub credentials in Jenkins.

• Create a new pipeline using the Jenkinsfile in the repository.

• Push changes to trigger the pipeline for build and deployment.

Monitoring

kubectl get pods
    
kubectl rollout status deployment/node-app

Contributors

• Abdullah Tarar

License

This project is licensed under the MIT License. Let me know if you’d like to simplify this further!