Automating AWS Infrastructure with Python: My PyCon 2025 CDK Demo

At PyCon 2025 Singapore, I had the opportunity to present a live demo on how to automate AWS infrastructure using AWS CDK (Cloud Development Kit) with Python.

As promised during the session at SIT Singapore, I’ve open-sourced the full codebase here:

👉 GitHub: sreedharbukya/pycon-cdk-demo

This article walks through the project’s purpose, architecture, key constructs, and what I learned along the way — with guidance for you to get started.

💡 Why This Project?

Cloud infrastructure has become complex, and many teams still rely on a patchwork of manual setups, scripts, or tools like Terraform with steep learning curves.

This project was built to demonstrate how:

• You can define AWS infrastructure in Python — a language most developers already know.
• CDK lets you encapsulate best practices into reusable constructs.
• IaC (Infrastructure as Code) can be readable, testable, and version-controlled.

Whether you’re a Python developer curious about DevOps, or a cloud engineer looking to simplify deployments, this project can be your quick start.

🔍 What It Does

The pycon-cdk-demo repository defines a simple but realistic AWS architecture using CDK. Here's what it includes: