You've containerized your app with Docker. Now what? If you're on a PaaS like Railway or Render, you git push and they handle the rest. That simplicity is real but as we covered in The Hidden Costs of Vercel, Railway, and Render , it comes at a 3–5x markup over running the same workload on AWS. AWS Elastic Container Service (ECS) with Fargate is the alternative. Fargate runs your Docker containers on managed infrastructure, no EC2 instances to patch, no clusters to manage. You define what you want to run, and AWS handles the "how." The catch? The documentation is scattered across dozens of AWS pages, and most tutorials stop at "Hello World" without covering HTTPS, custom domains, load balancers, or auto-scaling. The things you actually need for a production deployment. This guide is different. We'll deploy a real web application from zero to production-ready, including every step that other tutorials skip.…