Nginx Load Balancer Setup with Ansible

This repository contains an Ansible playbook designed to automatically configure an Nginx Load Balancer, distributing incoming HTTP requests evenly across five backend web servers.

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📌 Overview

The provided Ansible playbook handles:

• ✅ Installation of Nginx on the designated load balancer host.
• ✅ Automated Nginx configuration as a reverse-proxy load balancer.
• ✅ Efficient load distribution among five backend servers.

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🚀 Project Structure

nginx-loadbalancer-ansible/
├── hosts                      # Inventory of servers
├── loadbalancer.yml           # Main Ansible playbook
└── templates
    └── nginx_lb.conf.j2       # Nginx configuration template

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🔧 Requirements

Ensure the following prerequisites are met:

• Ansible installed on your local control machine:

sudo apt install ansible

• SSH key-based authentication configured on all remote hosts.
• Ubuntu/Debian-based Linux servers for load balancer and backend hosts.

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⚙️ Configuration Steps

Update the hosts file to reflect your server IP addresses or domain names:

[loadbalancer]
lb.example.com ansible_host=192.168.1.10

[webservers]
web1.example.com ansible_host=192.168.1.21
web2.example.com ansible_host=192.168.1.22
web3.example.com ansible_host=192.168.1.23
web4.example.com ansible_host=192.168.1.24
web5.example.com ansible_host=192.168.1.25

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▶️ Running the Playbook

Run the following command to deploy the load balancer:

ansible-playbook -i hosts loadbalancer.yml

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🧪 Testing the Setup

Test your load balancer by navigating to:

http://<loadbalancer-ip-address>/

You should see the load balancing in action across your backend servers.