Deploy on AWS ECS Fargate — Overview

You'll build the smallest possible "container in production" story on AWS:

1. Write a Dockerfile for a web page.
2. Push the image to Amazon ECR (Elastic Container Registry — the private Docker Hub).
3. Deploy it as an ECS Task running on Fargate (serverless containers — AWS handles the VM for you).
4. Expose it publicly on port 80.

Flow diagram

   Your laptop                    AWS
+--------------+       +---------------------------+
| Dockerfile   |       |                           |
| docker build | ---->  ECR (image registry)      |
+--------------+       |          |                |
                       |          v                |
                       |  ECS Cluster              |
                       |    └── Task Definition    |
                       |          └── Service      |
                       |                (Fargate)  |
                       +---------------------------+
                                    |
                                    v
                           Public IP → curl works!

Prerequisites

• AWS account (free tier).
• Docker installed locally.
• AWS CLI installed (see Part 1).
• 15 minutes.

Parts in this series

Part	What you'll do
1	Write the Dockerfile & install/configure AWS CLI
2	Create ECR repo, tag & push your Docker image
3	Create ECS Fargate cluster, task definition, and service

Fargate in one sentence

Fargate is AWS Lambda for containers — you tell it what to run, it decides where to run it. No EC2 nodes to patch, no scaling groups to configure.

What you'll be able to say at the end

"I can package any app in a Docker image, push it to a private AWS registry, and deploy it as a highly-available service without touching a single server." This is 80% of modern cloud-native application delivery.