merge files to main

.env

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+

.github/workflows/ci-cd.yml

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+name: CI-CD Pipeline
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: karthik0738
+          password: Karthik@0738
+
+      - name: Build & Push Backend
+        run: |
+          docker build -t ${{ secrets.DOCKERHUB_USERNAME }}/devops-assessment-backend ./backend
+          docker push ${{ secrets.DOCKERHUB_USERNAME }}/devops-assessment-backend
+
+      - name: Build & Push Frontend
+        run: |
+          docker build -t ${{ secrets.DOCKERHUB_USERNAME }}/devops-assessment-frontend ./frontend
+          docker push ${{ secrets.DOCKERHUB_USERNAME }}/devops-assessment-frontend

DEVOPS.md

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+# DevOps Assessment – Full Stack Deployment
+
+## Project Overview
+This project demonstrates containerization, orchestration, and CI/CD automation
+for a full-stack application.
+
+**Backend:** Django (REST API)  
+**Frontend:** React (Vite + TypeScript)  
+
+---
+
+## Phase 1: Containerization
+
+### Backend
+- Dockerized using Python slim image
+- Dependencies installed via requirements.txt
+- Exposed on port 8000
+
+### Frontend
+- Dockerized using Node Alpine image
+- Built using npm
+- Exposed on port 3000
+
+### Orchestration
+- docker-compose used to run both services
+- Services communicate via internal Docker network
+- Ports mapped to localhost for browser access
+
+### Run Locally
+```bash
+docker compose up --build
+
+## Infrastructure as Code (Terraform)
+
+- Used Terraform to provision AWS EC2
+- Defined Security Groups, EC2, and User Data
+- Automated Docker installation via user_data

Terraform/main.tf

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+resource "aws_instance" "devops_ec2" {
+  ami                    = var.ami_id
+  instance_type           = var.instance_type
+  key_name                = var.key_name
+  subnet_id               = aws_subnet.public_subnet.id
+
+  vpc_security_group_ids = [
+    aws_security_group.devops_sg.id
+  ]
+
+  tags = {
+    Name = "devops-ec2"
+  }
+}
+resource "aws_security_group" "devops_sg" {
+  name = "devops-sg"
+
+  ingress {
+    from_port   = 22
+    to_port     = 22
+    protocol    = "tcp"
+    cidr_blocks = ["0.0.0.0/0"]
+  }
+
+  ingress {
+    from_port   = 3000
+    to_port     = 3000
+    protocol    = "tcp"
+    cidr_blocks = ["0.0.0.0/0"]
+  }
+
+  ingress {
+    from_port   = 8000
+    to_port     = 8000
+    protocol    = "tcp"
+    cidr_blocks = ["0.0.0.0/0"]
+  }
+
+  egress {
+    from_port   = 0
+    to_port     = 0
+    protocol    = "-1"
+    cidr_blocks = ["0.0.0.0/0"]
+  }
+}

Terraform/outputs.tf

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+output "ec2_public_ip" {
+  value = aws_instance.devops_ec2.public_ip
+}

Terraform/provider.tf

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+provider "aws" {
+  region = "us-east-1"
+}

Terraform/user_data.sh

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+#!/bin/bash
+apt update -y
+apt install docker.io docker-compose git -y
+systemctl start docker
+systemctl enable docker
+usermod -aG docker ubuntu

Terraform/variables.tf

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+variable "key_name" {
+  description = "EC2 key pair name"
+}
+
+variable "instance_type" {
+  default = "t2.micro"
+}
+
+variable "ami" {
+  default = "ami-0f58b397bc5c1f2e8" # Ubuntu 22.04 (us-east-1)
+}

backend/dockerfile

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+FROM python:3.11-slim AS builder
+WORKDIR /app
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    && rm -rf /var/lib/apt/lists/*
+COPY requirements.txt .
+RUN pip install --upgrade pip \
+    && pip install --prefix=/install -r requirements.txt
+
+FROM python:3.11-slim
+RUN useradd -m django
+WORKDIR /app
+COPY --from=builder /install /usr/local
+COPY . .
+RUN chown -R django:django /app
+ENV PYTHONDONTWRITEBYTECODE=1
+ENV PYTHONUNBUFFERED=1
+EXPOSE 8000
+CMD ["python", "manage.py", "runserver", "0.0.0.0:8000"]

backend/requirements.txt

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+Django>=4.2
+djangorestframework
+

docker-compose.yml

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+version: "3.9"
+
+services:
+  backend:
+    build: ./backend
+    container_name: backend
+    command: python manage.py runserver 0.0.0.0:8000
+    volumes:
+      - ./backend:/app
+    ports:
+      - "8000:8000"
+    env_file:
+      - ./backend/.env
+    depends_on:
+      - frontend
+
+  frontend:
+    build: ./frontend
+    container_name: frontend
+    command: npm start
+    volumes:
+      - ./frontend:/app
+    ports:
+      - "3000:3000"
+    build:
+      context: ./backend
+    container_name: django-backend
+    ports:
+      - "8001:8000"
+    volumes:
+      - ./backend:/app
+    command: python manage.py runserver 0.0.0.0:8000
+
+  frontend:
+    build:
+      context: ./frontend
+    container_name: react-frontend
+    ports:
+      - "3001:80"

frontend/dockerfile

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+FROM node:20-alpine AS builder
+WORKDIR /app
+COPY package*.json ./
+RUN npm install
+COPY . .
+RUN npm run build
+
+FROM nginx:alpine
+RUN rm /etc/nginx/conf.d/default.conf
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+COPY --from=builder /app/dist /usr/share/nginx/html
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]
+

frontend/nginx.conf

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+server {
+    listen 80;
+
+    location / {
+        root /usr/share/nginx/html;
+        index index.html;
+        try_files $uri /index.html;
+    }
+}
+

terraform

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+delete this file