This tutorial details how to deploy a load-balanced static website using Docker and Nginx, addressing common infrastructure challenges. The guide walks through containerizing a Node.js application with a Dockerfile, utilizing Docker Compose to orchestrate three distinct instances, and configuring Nginx as a reverse proxy to distribute traffic via round-robin balancing. A critical section focuses on troubleshooting 502 Bad Gateway errors caused by SELinux security restrictions, specifically resolving the 'Permission denied' issue by enabling the `httpd_can_network_connect` boolean.

The article also contrasts hosting Nginx on the host machine versus within a container, offering solutions for network accessibility and providing best practices for production environments. Authored by Niraj Maharjan, this guide is essential for developers learning to ensure high availability and horizontal scaling for their web applications.