.. _architecture: Architecture ============ Buildly Product Labs is built on a modern, scalable microservices architecture that follows proven patterns for enterprise-grade applications. This page outlines the key architectural patterns and design principles that power the platform. .. contents:: Table of Contents :local: :depth: 2 Architecture Overview --------------------- Buildly follows a **component-driven microservices architecture** that emphasizes modularity, scalability, and maintainability. The platform is designed around several core architectural patterns that work together to provide a robust foundation for product management workflows. .. note:: **Architecture Diagram Coming Soon**: A visual diagram showing the relationship between frontend, gateway, core services, and logic services will be added here. Core Architectural Patterns ---------------------------- 1. API Gateway Pattern ^^^^^^^^^^^^^^^^^^^^^^ **Single Point of Entry** All client requests flow through a centralized API gateway that provides: - **Unified API Surface**: Single URL endpoint (``dev-api.myapp.io``) - **Service Discovery**: Automatic registration and discovery of backend services - **Load Balancing**: Intelligent request distribution across service instances - **Rate Limiting**: Protection against abuse and overload - **API Versioning**: Support for multiple API versions **Service Registration Flow**: .. code-block:: text Frontend Application (dev-app.myapp.io) ↓ API Gateway (dev-api.myapp.io) ↓ Buildly Core + Logic Services ↓ - /documents → Documents Service - /crm → CRM Service - /appointments → Appointments Service 2. Microservices Architecture ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ **Logic Services** Buildly implements a pure microservices pattern where each business capability is implemented as an independent service: - **Documents Service**: File management and document workflows - **CRM Service**: Customer relationship management - **Appointments Service**: Scheduling and calendar management - **Custom Services**: Domain-specific business logic **Key Characteristics**: - **Independence**: Each service can be developed, deployed, and scaled independently - **OpenAPI Standard**: All services follow OpenAPI/Swagger specifications - **Database per Service**: Each service owns its data store - **Technology Agnostic**: Services can use different programming languages and frameworks 3. Data Mesh Pattern ^^^^^^^^^^^^^^^^^^^^ **Unified Data Layer** The Data Mesh pattern enables seamless data integration across distributed services: **Data Aggregation**: .. code-block:: text Service 1 Data → UUID, Name, Type, Description Service 2 Data → UUID, Name, Type, Description Service 3 Data → UUID, Name, Type, Description ↓ Data Mesh (Buildly Core) ↓ Aggregated REST API Response **Benefits**: - **Cross-Service Joins**: Query data across multiple services seamlessly - **Data Consistency**: Maintain referential integrity across service boundaries - **Performance Optimization**: Intelligent caching and query optimization - **Schema Evolution**: Handle data model changes gracefully 4. Centralized Authentication & Authorization ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ **Single Sign-On (SSO)** Buildly Core manages authentication and authorization across all services: **Authentication Flow**: .. code-block:: text User Login → Buildly Core → JWT Token → All Services **Permission Model**: - **Role-Based Access Control (RBAC)**: Default roles auto-created - **Service-Level Permissions**: Fine-grained access control per service - **Cross-Service Authorization**: Unified permission checks - **User Management**: Centralized user lifecycle management 5. Workflow Template Pattern ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ **Reusable Process Orchestration** Buildly implements configurable workflow templates that can be reused across services: **Template Structure**: .. code-block:: text Workflow Template ├── Level 1 → Related Level → Related Workflow └── Level 2 → Related Level 1 → Related Workflow 2 **Capabilities**: - **Process Trees**: Build complex multi-step workflows - **Navigation Flows**: Define user journey patterns - **Cross-Service Workflows**: Orchestrate processes across multiple services - **Template Reusability**: Share workflow patterns across projects 6. Module Pattern (Core Extensions) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ **Pluggable Architecture** Buildly Core supports modules that run within the core application: - **Connection Modules**: Service integration and communication - **Security Modules**: Authentication and authorization extensions - **Data Transport Modules**: Message queuing and event processing - **Partner Integration Modules**: Third-party system connectors Deployment Architecture ----------------------- Container-First Design ^^^^^^^^^^^^^^^^^^^^^^ Buildly is designed for modern container orchestration platforms: **Kubernetes Deployment**: - **Namespace Isolation**: Each application gets its own Kubernetes namespace - **Pod Management**: Automatic pod creation for Buildly Core and Logic Services - **Service Mesh**: Istio/Linkerd integration for service communication - **Auto-Scaling**: Horizontal pod autoscaling based on load **Database Strategy**: - **Database per Service**: Each Logic Service has its own database - **Cluster Management**: Databases deployed in managed clusters - **Backup & Recovery**: Automated backup strategies per service - **Migration Support**: Database schema evolution and migration tools Cloud-Native Patterns ^^^^^^^^^^^^^^^^^^^^^ **Infrastructure as Code**: - **Automated Provisioning**: Infrastructure deployment via Terraform/CloudFormation - **Environment Parity**: Consistent environments from development to production - **Blue-Green Deployments**: Zero-downtime deployment strategies - **Monitoring & Observability**: Integrated logging, metrics, and tracing Security Architecture --------------------- Defense in Depth ^^^^^^^^^^^^^^^^^ **Multiple Security Layers**: 1. **Network Security**: VPC isolation, security groups, and network policies 2. **API Security**: OAuth 2.0, JWT tokens, and API rate limiting 3. **Application Security**: Input validation, output encoding, and CSRF protection 4. **Data Security**: Encryption at rest and in transit 5. **Infrastructure Security**: Container scanning and vulnerability management **Compliance & Governance**: - **GDPR Compliance**: Data privacy and user consent management - **SOC 2 Type II**: Security and availability controls - **OWASP Top 10**: Protection against common web vulnerabilities - **Audit Logging**: Comprehensive audit trails for compliance Performance & Scalability -------------------------- Horizontal Scaling ^^^^^^^^^^^^^^^^^^ **Auto-Scaling Capabilities**: - **Load-Based Scaling**: Automatic scaling based on CPU/memory usage - **Queue-Based Scaling**: Scale based on message queue depth - **Predictive Scaling**: ML-driven capacity planning - **Multi-Region Deployment**: Global distribution for low latency **Performance Optimization**: - **Caching Layers**: Redis/Memcached for session and application caching - **CDN Integration**: Static asset delivery via CloudFront/CloudFlare - **Database Optimization**: Connection pooling and query optimization - **Async Processing**: Background job processing for long-running tasks Monitoring & Observability --------------------------- Three Pillars of Observability ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ **Metrics**: - **Application Metrics**: Response times, throughput, error rates - **Infrastructure Metrics**: CPU, memory, disk, network utilization - **Business Metrics**: Feature usage, user engagement, conversion rates **Logging**: - **Structured Logging**: JSON-formatted logs with correlation IDs - **Centralized Logging**: ELK/EFK stack for log aggregation - **Log Retention**: Configurable retention policies per environment **Tracing**: - **Distributed Tracing**: OpenTracing/Jaeger for request flow visualization - **Performance Profiling**: APM tools for bottleneck identification - **Error Tracking**: Sentry/Rollbar for real-time error monitoring Development Workflow --------------------- CI/CD Pipeline ^^^^^^^^^^^^^^ **Continuous Integration**: - **Automated Testing**: Unit, integration, and end-to-end test suites - **Code Quality**: SonarQube/CodeClimate for static analysis - **Security Scanning**: Container and dependency vulnerability scanning - **Build Automation**: Docker image building and registry management **Continuous Deployment**: - **GitOps Workflow**: Infrastructure and application deployment via Git - **Environment Promotion**: Automated promotion from dev → staging → production - **Rollback Capabilities**: One-click rollback to previous versions - **Feature Flags**: Gradual feature rollout and A/B testing Developer Experience ^^^^^^^^^^^^^^^^^^^^ **Local Development**: - **Docker Compose**: One-command local environment setup - **Hot Reloading**: Real-time code changes without restarts - **Mock Services**: Stub external dependencies for isolated testing - **Development Tools**: Integrated debugging and profiling tools Future Architecture Evolution ----------------------------- Emerging Patterns ^^^^^^^^^^^^^^^^^ **Planned Enhancements**: - **Event-Driven Architecture**: Implement event sourcing and CQRS patterns - **GraphQL Federation**: Unified GraphQL schema across microservices - **Serverless Functions**: Edge computing for specialized workloads - **AI/ML Pipeline**: Integrated machine learning model deployment **Technology Roadmap**: - **Service Mesh**: Advanced traffic management and security - **Multi-Cloud**: Avoid vendor lock-in with multi-cloud deployments - **Edge Computing**: Reduce latency with edge node deployment - **Blockchain Integration**: Immutable audit trails and smart contracts Getting Started for Developers ------------------------------- **Repository Structure**: .. code-block:: text buildly-ecosystem/ ├── buildly-core/ # Core gateway and auth service ├── buildly-ui-angular/ # Frontend application framework ├── logic-services/ # Business logic microservices │ ├── documents-service/ │ ├── crm-service/ │ └── appointments-service/ └── infrastructure/ # Deployment and infrastructure code ├── kubernetes/ ├── terraform/ └── docker/ **Quick Start**: 1. **Clone Repositories**: Get the core platform and desired logic services 2. **Environment Setup**: Configure local development environment with Docker 3. **Service Development**: Build new logic services using provided templates 4. **Integration Testing**: Test service integration with Buildly Core 5. **Deployment**: Deploy to Kubernetes cluster using provided manifests Related Documentation --------------------- For more detailed information, see: - :doc:`developers/index` - Developer setup and contribution guidelines - :doc:`modules/index` - API documentation for core modules - :doc:`troubleshooting/index` - Common architectural issues and solutions - `Buildly Core Repository `_ - Core platform source code - `Logic Services Examples `_ - Sample microservice implementations **External Resources**: - `Microservices Patterns `_ - Industry best practices - `OpenAPI Specification `_ - API design standards - `Kubernetes Documentation `_ - Container orchestration - `OAuth 2.0 RFC `_ - Authentication standards