Architecture Overview
PLATFORMA is designed as a modular, event-driven platform with clear separation between business logic, infrastructure orchestration, and presentation layers.
Design Principles
- Multi-tenant by default — Every component is designed for tenant isolation from the ground up
- Event-driven — All state changes propagate through the event bus, enabling loose coupling
- API-first — Every capability is accessible through the REST API before any UI is built
- Infrastructure-agnostic — Supports OpenStack, Kubernetes, bare metal, and hybrid deployments
- Horizontally scalable — Stateless services that scale independently
Platform Architecture
The platform is organized into four primary layers:
1. Presentation Layer
Customer portals, admin dashboards, and partner interfaces. All UIs communicate exclusively through the API layer — there is no direct database access from the frontend.
2. API Layer
The REST API gateway handles authentication, rate limiting, request routing, and response formatting. It serves as the single entry point for all external interactions.
3. Business Logic Layer
Core domain services that implement order management, billing, product catalog, identity management, and provisioning workflows. Services communicate through the event bus.
4. Infrastructure Layer
Drivers and adapters for cloud providers (OpenStack, Kubernetes), monitoring systems, and external integrations. This layer abstracts provider-specific APIs behind a unified interface.
Service Architecture
Each domain is implemented as an independent service:
| Service | Responsibility |
|---|---|
| Order Service | Order lifecycle, validation, fulfillment tracking |
| Catalog Service | Product definitions, pricing rules, availability |
| Billing Service | Usage metering, invoice generation, payment processing |
| Provisioning Service | Workflow execution, resource lifecycle management |
| Identity Service | Authentication, authorization, tenant management |
| Gateway Service | API routing, rate limiting, analytics |
| Notification Service | Email, webhook, and in-app notifications |
| Monitoring Service | Metrics collection, alerting, dashboards |
Data Flow
A typical order flow:
- Customer places order through Portal → API Gateway
- Gateway authenticates and routes to → Order Service
- Order Service validates and publishes
order.created→ Event Bus - Provisioning Service picks up event → executes workflow → provisions resources
- Provisioning publishes
order.provisioned→ Event Bus - Billing Service creates subscription, Notification Service sends email