| # Deployment Architecture | |
| ## Overview | |
| This document outlines the deployment architecture for the Lin application, including both the React frontend and Flask API backend. | |
| ## Architecture Diagram | |
| ```mermaid | |
| graph TD | |
| A[Client Browser] --> B[CDN - Frontend Assets] | |
| A --> C[Load Balancer] | |
| C --> D[API Gateway] | |
| D --> E[Flask API Server 1] | |
| D --> F[Flask API Server 2] | |
| D --> G[Flask API Server N] | |
| E --> H[Supabase Database] | |
| F --> H | |
| G --> H | |
| H --> I[Supabase Auth] | |
| H --> J[Supabase Storage] | |
| E --> K[External APIs] | |
| F --> K | |
| G --> K | |
| K --> L[LinkedIn API] | |
| K --> M[Hugging Face API] | |
| ``` | |
| ## Components | |
| ### Client Layer | |
| - Web browsers (desktop and mobile) | |
| - Mobile applications (future consideration) | |
| - API consumers (third-party integrations) | |
| ### Frontend Layer | |
| - React application hosted on CDN | |
| - Static assets (HTML, CSS, JavaScript, images) | |
| - Client-side routing | |
| - Browser-based caching | |
| ### API Layer | |
| - Load balancer for traffic distribution | |
| - API gateway for request routing | |
| - Multiple Flask API server instances | |
| - Horizontal scaling capabilities | |
| ### Backend Services Layer | |
| - Supabase as the primary database | |
| - Supabase Auth for user authentication | |
| - Supabase Storage for file storage | |
| - External API integrations | |
| ### External Services | |
| - LinkedIn API for social media integration | |
| - Hugging Face API for content generation | |
| - Email service for user notifications | |
| ## Deployment Environments | |
| ### Development | |
| - Local development environments | |
| - Development database with sample data | |
| - Debugging tools enabled | |
| - Hot reloading for frontend development | |
| ### Staging | |
| - Pre-production environment | |
| - Mirror of production configuration | |
| - Testing of new features | |
| - Performance testing | |
| ### Production | |
| - Live environment for users | |
| - High availability configuration | |
| - Monitoring and alerting | |
| - Backup and disaster recovery | |
| ## Infrastructure Requirements | |
| ### Frontend Hosting | |
| - CDN for static asset delivery | |
| - HTTPS support | |
| - Custom domain configuration | |
| - Cache invalidation strategy | |
| ### Backend Hosting | |
| - Cloud hosting platform (AWS, Google Cloud, Azure) | |
| - Container orchestration (Docker Swarm, Kubernetes) | |
| - Auto-scaling groups | |
| - Health monitoring | |
| ### Database | |
| - Supabase project with production plan | |
| - Database backups | |
| - Point-in-time recovery | |
| - Read replicas for scaling | |
| ### Networking | |
| - SSL certificates for HTTPS | |
| - DNS configuration | |
| - Firewall rules | |
| - DDoS protection | |
| ## Scalability | |
| ### Horizontal Scaling | |
| - Multiple API server instances | |
| - Load balancing across instances | |
| - Stateless application design | |
| - Shared database for consistency | |
| ### Vertical Scaling | |
| - Increasing server resources (CPU, memory) | |
| - Database scaling options | |
| - CDN bandwidth scaling | |
| ### Auto-scaling | |
| - CPU-based scaling policies | |
| - Request-based scaling policies | |
| - Minimum and maximum instance limits | |
| - Scaling cooldown periods | |
| ## Security | |
| ### Network Security | |
| - Firewall configuration | |
| - Private networks for backend services | |
| - SSL/TLS encryption | |
| - DDoS protection | |
| ### Application Security | |
| - Authentication and authorization | |
| - Input validation and sanitization | |
| - Secure headers | |
| - CORS policy configuration | |
| ### Data Security | |
| - Encryption at rest | |
| - Encryption in transit | |
| - Database access controls | |
| - Regular security audits | |
| ## Monitoring and Logging | |
| ### Application Monitoring | |
| - Uptime monitoring | |
| - Performance metrics | |
| - Error tracking | |
| - Custom dashboards | |
| ### Infrastructure Monitoring | |
| - Server health metrics | |
| - Network performance | |
| - Database performance | |
| - Resource utilization | |
| ### Logging | |
| - Centralized log management | |
| - Log retention policies | |
| - Log analysis tools | |
| - Alerting based on log patterns | |
| ## Backup and Disaster Recovery | |
| ### Data Backup | |
| - Automated database backups | |
| - Backup retention policies | |
| - Point-in-time recovery | |
| - Cross-region replication | |
| ### Disaster Recovery | |
| - Recovery time objectives (RTO) | |
| - Recovery point objectives (RPO) | |
| - Failover procedures | |
| - Business continuity planning | |
| ## CI/CD Pipeline | |
| ### Continuous Integration | |
| - Automated testing on pull requests | |
| - Code quality checks | |
| - Security scanning | |
| - Build artifact generation | |
| ### Continuous Deployment | |
| - Automated deployment to staging | |
| - Manual approval for production | |
| - Rollback capabilities | |
| - Blue-green deployment strategy | |
| ### Environment Promotion | |
| - Development to staging | |
| - Staging to production | |
| - Feature flag management | |
| - A/B testing capabilities | |
| ## Cost Considerations | |
| ### Infrastructure Costs | |
| - Cloud hosting fees | |
| - CDN costs | |
| - Database hosting | |
| - External API usage | |
| ### Operational Costs | |
| - Monitoring and logging tools | |
| - Backup storage | |
| - Support and maintenance | |
| - Team productivity tools | |
| ### Optimization Strategies | |
| - Resource right-sizing | |
| - Caching strategies | |
| - Content delivery optimization | |
| - Usage-based scaling | |
| ## Maintenance | |
| ### Regular Maintenance | |
| - Security updates | |
| - Dependency updates | |
| - Performance tuning | |
| - Database maintenance | |
| ### Scheduled Downtime | |
| - Maintenance windows | |
| - Communication plan | |
| - Rollback procedures | |
| - Post-maintenance validation | |
| ### Incident Response | |
| - Incident classification | |
| - Escalation procedures | |
| - Communication protocols | |
| - Post-incident analysis |