DevOps & Cloud - Flask Blog Application

Project Overview

This project demonstrates a complete DevOps workflow using Docker and Kubernetes. It consists of a Flask-based backend blog application and a static frontend application, both containerized and deployed using Kubernetes on Minikube.

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Project Architecture

• Backend: Flask blog application (CRUD operations)
• Frontend: Static webpage served using NGINX
• Database: SQLite (used by Flask backend)
• Containerization: Docker
• Orchestration: Kubernetes (Minikube)
• Version Control: Git & GitHub

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Backend – Flask Application

The Flask backend allows users to:

• Create new blog posts
• View all posts
• Edit existing posts
• Delete posts
• View posts stored in a SQLite database

The backend runs on port 5000 and binds to 0.0.0.0 for container access.

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Frontend Application

The frontend is a static web application served using NGINX. It displays a simple homepage and is exposed via a Kubernetes service.

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Docker

• Backend and frontend are Dockerized using separate Dockerfiles
• Images are built and pushed to Docker Hub

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Kubernetes Deployment

• Backend deployed using a Kubernetes Deployment (replicas)
• Frontend deployed using a Kubernetes Deployment
• Both services are exposed using NodePort services
• Minikube is used as the local Kubernetes cluster

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How to Run the Project

Start Minikube

minikube start

 **Deploy Backend**
kubectl apply -f backend-deployment.yaml
kubectl apply -f backend-service.yaml

 **Deploy Frontend**
kubectl apply -f frontend-deployment.yaml
kubectl apply -f frontend-service.yaml

**Access Applications**
minikube service backend
minikube service frontend