Module 2: Containerizing Flask with Docker

In this module we containerize the Flask application from Module 1 using Docker best practices.

Why Dockerize?

Containers ensure your app runs identically in development, staging, and production.

Writing the Dockerfile

Use a multi-stage build to keep the production image small and secure.

Docker Compose Setup

Define services for the web app, database, and Redis cache in a single compose file.

Testing Locally

Build and run containers, verify health checks, and debug common networking issues.