E-Commerce Platform - Cloud

Problem Statement: E-Commerce Platform on Cloud

Business Requirements:

1. Scalability: The platform should handle high traffic during peak shopping seasons without performance degradation.
2. High Availability: Ensure minimal downtime to provide a seamless shopping experience.
3. Data Security: Protect sensitive customer data and ensure compliance with regulations such as GDPR.
4. Cost Efficiency: Optimize resource usage to minimize costs while maintaining performance.
5. Disaster Recovery: Implement a robust disaster recovery plan to ensure business continuity.

Technical Requirements:

1. Web Application: Host the main e-commerce website that includes product listings, user accounts, and a shopping cart.
2. Database: Use a relational database to manage product inventory, customer information, and orders.
3. Search Functionality: Implement a fast and scalable search service for product queries.
4. Content Delivery: Use a CDN to deliver static content like images and videos quickly to users worldwide.
5. Monitoring and Logging: Implement monitoring and logging to track performance, errors, and user activity.

Solution Design:

Core Components:

1. Web Application:
   • Use Compute Instances or Platform-as-a-Service (PaaS) offerings to host the web application for easy scaling and management.
   • Deploy multiple instances across different Regions and Availability Zones for high availability.
2. Database:
   • Use a Managed Relational Database Service for relational data storage with automated backups and multi-region replication.
   • Implement a NoSQL Database for handling unstructured data if needed for certain parts of the application.
3. Search Functionality:
   • Use a Managed Search Service for a robust, scalable search solution.
4. Content Delivery:
   • Use a Content Delivery Network (CDN) to deliver static content globally, reducing latency and improving load times.
5. Storage:
   • Use Object Storage for storing large objects like images, videos, and backups.
6. Authentication and Security:
   • Use Identity and Access Management (IAM) for identity and access management.
   • Implement a Key Management Service (KMS) to manage secrets and encryption keys.
7. Networking:
   • Use a DNS Service for DNS routing and traffic management.
   • Set up a Virtual Private Network (VPN) or Virtual Private Cloud (VPC) for secure communication between services.
   • Implement Firewall Rules and a Web Application Firewall (WAF) for enhanced security.
8. Monitoring and Logging:
   • Use Monitoring and Logging Services for monitoring and logging application performance and security events.
   • Implement Tracing and Profiling Tools for detailed application telemetry.
9. Disaster Recovery:
   • Set up a Backup and Disaster Recovery Service for regular backups of databases and other critical resources.
   • Implement cross-region replication and failover strategies for high availability.

Example Architecture Diagram

            ┌───────────────┐
            │    DNS Service│
            └───────┬───────┘
                    │
            ┌───────▼───────┐
            │      WAF      │
            └───────┬───────┘
                    │
            ┌───────▼───────┐
            │      CDN      │
            └───────┬───────┘
                    │
            ┌───────▼───────┐
            │  Load Balancer│
            └───────┬───────┘
                    │
            ┌───────▼───────┐
            │  Auto-scaling │
            │     Group     │
            └───────┬───────┘
                    │
            ┌───────▼───────┐
            │ Compute       │
            │ Instances or  │
            │ PaaS Service  │
            └───────┬───────┘
                    │
            ┌───────▼───────┐
            │  Managed      │
            │  Relational   │
            │  Database     │
            └───────┬───────┘
                    │
            ┌───────▼───────┐
            │   Managed     │
            │  Search       │
            │  Service      │
            └───────┬───────┘
                    │
            ┌───────▼───────┐
            │  Object       │
            │  Storage      │
            └───────┬───────┘
                    │
            ┌───────▼───────┐
            │ Key Management│
            │    Service    │
            └───────┬───────┘
                    │
            ┌───────▼───────┐
            │ Monitoring    │
            │   and Logging │
            │   Services    │
            └───────────────┘