This project demonstrates the containerized deployment of a backend service for a School ERP system using DevOps best practices. The backend service exposes a REST API and is deployed using Docker. Multiple services such as the backend application, PostgreSQL database, and Redis cache are orchestrated using Docker Compose. A CI/CD pipeline is implemented using Jenkins to automate the build, test, and Docker image push process.

• REST API backend built using Node.js and Express
• Containerized application using Docker
• Multi-service setup using Docker Compose
• Database service using PostgreSQL
• Cache service using Redis
• Environment configuration using .env
• CI/CD pipeline using Jenkins
• Docker image pushed to DockerHub
• Health check endpoint implemented for monitoring

• Node.js
• Express
• PostgreSQL
• Redis
• Docker
• Docker Compose
• Jenkins
• DockerHub

school-erp-devops │ ├── backend │ ├── app.js │ ├── package.json │ ├── Dockerfile ├── docker-compose.yml ├── .env ├── Jenkinsfile └── README.md

Environment variables are stored in the .env file.

Example configuration:

PORT=5000 DB_HOST=postgres DB_USER=postgres DB_PASSWORD=postgres DB_NAME=schooldb NODE_ENV=development

git clone https://github.com/PavanBand/school-erp-devops.git

cd school-erp-devops

docker compose up --build

This command will start the following services:

• Backend API
• PostgreSQL Database
• Redis Cache

Main API

http://localhost:5000

Health Check Endpoint

http://localhost:5000/health

Expected Response

{"status":"OK"}

Docker image is pushed to DockerHub.

Image name:

pavanbandi07/school-erp-devops

Pull the image:

docker pull pavanbandi07/school-erp-devops

Run the container:

docker run -p 5000:5000 pavanbandi07/school-erp-devops

A Jenkins pipeline is used to automate the deployment process.

Pipeline stages include:

1. Clone GitHub repository
2. Install backend dependencies
3. Build Docker image
4. Run container test
5. Verify health endpoint
6. Push Docker image to DockerHub
7. Cleanup container

The pipeline configuration is defined in the Jenkinsfile.

Pavan Bandi B.Tech CSE – AI DevOps Enthusiast