Introduction

This project demonstrates a simple multi-container application using Docker Compose.

A Python service connects to a MongoDB database inside an isolated Docker network, showing how containers interact without exposing internal communication to the outside world.

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Stack

• Python
• MongoDB
• Docker
• Docker Compose

Architecture

• app → Python container
• mongo → MongoDB container

Docker Compose automatically creates a shared network where both services can communicate.

How It Works

• The Python app connects to MongoDB using:

mongodb://mongo:27017