Dockerized Flask Web Application with Redis, PostgreSQL & Nginx

  Building a Dockerized Flask Web Application with Redis, PostgreSQL & Nginx  I. Introduction In this blog, I’ll walk through how I developed a Dockerized Flask web application integrated with Redis , PostgreSQL , and Nginx . This project demonstrates how to build a modern, containerized, full-stack web system where each component runs in its own container — similar to real-world microservice architecture. The project is divided into three major phases — each representing a milestone in development till DA2 (Design & Analysis 2) . Phase 1: Flask Application Development I. Objective The goal of this phase was to create a working Flask application that displays a simple visitor counter and renders a professional frontend. II.  Implementation Created a Python Flask project ( app/app.py ) with basic routes: / → Displays visitor count. /stats → Shows logs from PostgreSQL. /reset → Resets counter and database. Used Redis to handle real-ti...