Simple Load Balancer and Backend Server

This project includes a simple load balancer (lb) and 3 backend servers (backend) written in Go, which are containerized using Docker. The load balancer forwards incoming HTTP requests to the backend server, which responds with a simple greeting.

To be fair, I just did this because I wanted to make a load balancer and I think its fun to build things like this...

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes.

Prerequisites

• Go 1.18 or higher
• Docker
• Docker Compose

Installing

Clone the repository to your local machine:

git clone https://github.com/yourusername/own-load-balancer.git

Building and Running

Navigate to the root directory of the project and run the following command to build and start the services using Docker Compose:

docker-compose up --build

This command will start 4 Docker containers:

backend services: The backend servers listening on port 8080, 8081 and 8082. lb: The load balancer listening on port 80 and forwarding requests to the backend server.

Testing

After the services are running, you can send a request to the load balancer using curl:

curl http://localhost/

you also can test it making concurrent requests with:

curl --parallel --parallel-immediate --parallel-max 3 --config urls.txt