Load Balancer

A simple load balancer implementation in Go designed to distribute incoming HTTP traffic across multiple backend servers using configurable algorithms. Supports Round Robin and Least Connections strategies.

Features

• Round Robin & Least Connections (TODO) algorithms
• Configurable server pools
• Health checks for backend servers
• Request logging
• Scalable architecture for future enhancements

Installation

1. Ensure Go 1.22+ is installed
2. Clone repository:

   git clone https://github.com/vinit-chauhan/load-balancer.git
   cd load-balancer

3. Build & run:

   go build -o load-balancer
   ./load-balancer -config=config.json

Configuration

Modify config.yaml:

services:
  - name: web-app-1
    endpoint: entertainment
    urls:
      - localhost:8900
      - localhost:8901

• urls: List of backend servers
• endpoint: endpoint to host the services
• name: name for the service

Usage

Start load balancer:

./load-balancer -config=config.yaml

Send requests:

curl http://localhost:8080

Logging

Requests are logged to logs/load_balancer_<timestamp>.log with format:

[YYYY-MM-DD HH:MM:SS] <client_ip> -> <backend_server>

Testing

1. Start backend servers on ports 8900 and 8901
2. Use load testing tool:

   hey -n 1000 -c 50 http://localhost:8000

Contributing

Contributions welcome! Please:

1. Fork the repository
2. Create a feature branch
3. Submit a Pull Request

License

MIT License - see LICENSE file a