How I Built a Self-Healing, Multi-AZ Infrastructure on AWS — And What Broke Along the Way

The Problem I Set Out to Solve AWS can projects look the same: spin up one EC2 instance, install a web server, call it done. The moment that instance crashes or traffic spikes, the whole thing falls over. I wanted to build something that actually answers the question when it comes to "high availability": what happens when something fails, and does...