This project demonstrates a simple high availability web service using Docker Compose and Nginx as a load balancer.

• Nginx as a reverse proxy and load balancer
• Multiple web service containers
• PostgreSQL database
• Docker Compose orchestration
• Docker healthchecks and restart policies are used to ensure service reliability

• Docker
• Docker Compose
• Nginx
• Python (Flask)
• PostgreSQL
• Linux (Ubuntu)

Nginx distributes incoming traffic between multiple web service containers.

Each web container exposes a /health endpoint and is continuously monitored using Docker healthchecks. If a container becomes unhealthy, Docker automatically restarts it and Nginx routes traffic only to healthy instances.

docker-compose up -d

## Who is this for
This project is intended as a hands-on example for junior system administrators and junior DevOps engineers who want to understand containerized infrastructure and basic high availability concepts.