Multi-Region Disaster Recovery System

This project demonstrates a Multi-Region Disaster Recovery (DR) System for cloud applications, ensuring high availability, automated failover, and minimal data loss in case of regional outages.

Features

• Multi-region deployment with AWS
• Automated failover using Route53 health checks
• Stateless Dockerized application
• Replicated database instances
• Infrastructure as Code (Terraform)
• Health monitoring and failover scripts

Architecture

• Primary Region: Handles live traffic under normal conditions
• Secondary Region: Standby for failover, maintains replicated data
• Route53 DNS: Monitors health and switches traffic automatically
• Application: Stateless Flask app in Docker
• Database: PostgreSQL instances replicated across regions

Project Structure

multi-region-dr/
├── README.md
├── infrastructure/
│   ├── provider.tf
│   ├── vpc.tf
│   ├── rds.tf
│   └── route53.tf
├── app/
│   ├── app.py
│   ├── requirements.txt
│   └── Dockerfile
└── scripts/
    └── failover.py

Deployment Steps

1. Provision Infrastructure

   terraform init
   terraform plan
   terraform apply

2. Build Docker App

   docker build -t multi-region-app ./app

3. Run App

   docker run -p 80:80 multi-region-app

4. Test Failover

   python scripts/failover.py

Requirements

• AWS Account with IAM permissions
• Terraform >= 1.5
• Docker
• Python 3.11+
• Boto3 library for AWS SDK in Python

Monitoring & Testing

• Route53 health checks
• Flask /health endpoint
• Manual or automated failover testing

Future Enhancements

• Active-Active multi-region deployment
• Zero-downtime failover
• Chaos testing for disaster simulation
• Integration with Prometheus / CloudWatch for alerting

About Me

✨ I’m Sufyan bin Uzayr, an open-source developer passionate about building and sharing meaningful projects. You can learn more about me and my work at sufyanism.com or connect with me on Linkedin

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