CloudRetail – AWS Microservices E-Commerce Architecture

Overview

CloudRetail is a cloud-native e-commerce application built on AWS using a microservices architecture. The system is designed to be scalable, secure, and cost-efficient, following modern cloud and distributed system best practices.

---

Key Features

• Microservices-based architecture (Product, Cart, Order services)
• Containerized deployment using Docker
• Scalable backend with Amazon ECS
• Secure authentication using Amazon Cognito
• Hybrid database (RDS MySQL + DynamoDB)
• Event-driven communication
• Infrastructure as Code using AWS CDK
• Monitoring and logging with CloudWatch

---

Proposed Architecture

Highlights

• Frontend hosted via S3 and CloudFront (low latency)
• API Gateway with JWT authentication (Cognito)
• ECS cluster with auto-scaling
• Multi-AZ VPC with public/private subnets
• Aurora (RDS) + DynamoDB data layer
• Event-driven services (EventBridge, SQS, SNS)
• Secure access via IAM, Secrets Manager, VPC endpoints

---

Implemented Architecture

Highlights

• Cost-optimized AWS architecture (Free Tier focused)
• ECS (EC2-based) with Docker containers
• Application Load Balancer for traffic routing
• API Gateway with throttling and authentication
• Cognito-based role management (Admin / Customer)
• RDS MySQL + DynamoDB hybrid database
• Logging and monitoring via CloudWatch

---

Architecture Components

Networking & Security

• VPC with public and private subnets
• Security Groups and IAM roles
• VPC Endpoints for secure communication
• AWS WAF for protection and rate limiting

Compute

• Amazon ECS cluster
• EC2 Auto Scaling

Data Layer

• Amazon RDS (MySQL)
• Amazon DynamoDB
• Amazon S3 (storage & backups)

DevOps & Deployment

• AWS CDK (Infrastructure as Code)
• Docker containerization

Monitoring & Logging

• Amazon CloudWatch
• AWS CloudTrail
• AWS GuardDuty & Security Hub

---

Testing

• API testing using Postman
• Functional testing of all services
• Cloud deployment testing
• Load balancing validation via ALB

---

Security & Compliance

• JWT authentication via Cognito
• Encryption (TLS + KMS)
• Secrets management (AWS Secrets Manager)
• GDPR-aware data handling

---

Technologies Used

• AWS (ECS, ECR, RDS, DynamoDB, API Gateway, Cognito, CloudWatch)
• Docker
• AWS CDK
• MySQL
• REST APIs

---

Future Improvements

• Multi-region deployment
• AI-driven personalization
• Redis caching (ElastiCache)
• Advanced monitoring and tracing