🚀 Cluster Pulse

A minimal HTTP server that logs incoming requests, built with Node.js and containerized with Docker. Designed for simple deployment in a Kubernetes environment.

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📁 Project Structure

.
├── server.js              # Node.js HTTP server
├── Dockerfile             # Docker build configuration
├── k8.deployments.yaml    # Kubernetes Deployment spec
└── command.sh             # Build, run, tag, and push commands

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🌐 Server Overview

server.js

• A basic HTTP server created using Node’s built-in http module.
• Logs every request to the console with timestamp, method, and URL.
• Responds with "Hello, World!" on every request.

Example Output:

[2025-04-21T12:00:00.000Z] GET /
Server running at http://0.0.0.0:8080/

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🐳 Docker Setup

Dockerfile

• Uses the arm64v8/node:16 base image.
• Installs dependencies from package.json.
• Copies project files and exposes port 8080.

Build & Run (from command.sh):

# Build Docker image
docker build -t cluster-pulse .

# Run locally
docker run -p 8080:8080 cluster-pulse

# Tag and push to Docker Hub
docker tag cluster-pulse masumosman/cluster-pulse:latest
docker push masumosman/cluster-pulse

Make sure you're logged into Docker Hub as masumosman before pushing.

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☸️ Kubernetes Deployment

k8.deployments.yaml

Deploys the cluster-pulse container as a replicated service in Kubernetes.

Key Specs:

• Replicas: 2
• Container Port: 8080
• Image: masumosman/cluster-pulse:latest

Deploy Command:

kubectl apply -f k8.deployments.yaml

Ensure your Kubernetes context is set and cluster is ready before applying the deployment.

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📦 Requirements

• Node.js 16 (ARM64)
• Docker
• Kubernetes (optional for deployment)
• package.json and package-lock.json in project root

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