Voting App

A distributed application running across multiple Docker containers.

Getting started

Download Docker Desktop for Mac or Windows. Docker Compose will be automatically installed. On Linux, make sure you have the latest version of Compose.

This solution uses Python, Node.js, .NET, with Redis for messaging and Postgres for storage.

Run in this directory to build and run the app:

docker compose up -d

The vote app will be running at http://localhost:8000, and the results will be at http://localhost:4000.

Architecture

• A front-end web app in Python which lets you vote between two options
• A Redis which collects new votes
• A .NET worker which consumes votes and stores them in…
• A Postgres database backed by a Docker volume
• A Node.js web app which shows the results of the voting in real time

Notes

The voting application only accepts one vote per client browser. It does not register additional votes if a vote has already been submitted from a client.