DevOps Training Project

A microservices-based application demonstrating modern DevOps practices and asynchronous message processing architecture.

Overview

This project showcases a distributed system consisting of three interconnected microservices that work together to provide an LLM-powered chat application with message persistence and asynchronous processing.

Architecture Components

1. Web Frontend (/components/web)

• Technology: Next.js application
• Purpose: User interface for interacting with the LLM chat system
• Features: Modern React-based UI with responsive design

2. API Gateway (/components/api)

• Technology: Node.js backend service
• Purpose: Handles user requests, persists messages to database, and manages message queuing
• Features:
  • RESTful API endpoints
  • Database persistence (Prisma ORM)
  • RabbitMQ message publishing
  • Message validation and processing

3. Core Processing Service (/components/core)

• Technology: Node.js worker service
• Purpose: Processes queued messages and generates LLM responses
• Features:
  • RabbitMQ message consumption
  • Fake LLM integration for demonstration
  • Asynchronous message processing
  • Response generation and delivery

System Architecture

The application follows an event-driven architecture pattern:

User → Web Frontend → API Gateway → Database + RabbitMQ → Core Service → Response

Key Features

• Microservices Architecture: Loosely coupled services for scalability and maintainability
• Message Queue Integration: RabbitMQ for reliable asynchronous communication
• Database Persistence: Structured data storage with Prisma ORM
• Modern Frontend: Next.js with TypeScript for type safety
• Containerization Ready: Docker support for easy deployment

Technology Stack

• Frontend: Next.js, React, TypeScript
• Backend: Node.js, Express
• Database: Prisma ORM
• Message Queue: RabbitMQ
• Containerization: Docker
• Language: TypeScript

Getting Started

See individual component directories for setup instructions:

• /components/web - Frontend application
• /components/api - API gateway service
• /components/core - Message processing service

Project Structure

devops-training/
├── components/          # Microservices
│   ├── web/           # Next.js frontend
│   ├── api/           # Node.js API gateway
│   └── core/          # Message processing service
├── documentation/      # Project documentation and diagrams
└── README.md          # This file

Contributing

This project serves as a training ground for DevOps practices. Feel free to explore the codebase and experiment with different deployment strategies.