# Deployment Architecture

This diagram shows the production deployment architecture with load balancing, clustering, and monitoring.

```mermaid
graph TB
    subgraph "Load Balancer"
        LB[NGINX/Cloudflare]
    end
    
    subgraph "API Server Cluster"
        direction LR
        API1[API-1<br/>Orleans Silo<br/>Port: 11111]
        API2[API-2<br/>Orleans Silo<br/>Port: 11121]
        API3[API-3<br/>Orleans Silo<br/>Port: 11131]
    end
    
    subgraph "Compute Worker Cluster"
        direction LR
        W1[Worker-1<br/>8 CPU Cores<br/>6 Concurrent Jobs]
        W2[Worker-2<br/>8 CPU Cores<br/>6 Concurrent Jobs]
        W3[Worker-3<br/>8 CPU Cores<br/>6 Concurrent Jobs]
    end
    
    subgraph "Database Cluster"
        direction LR
        DB_MASTER[(PostgreSQL<br/>Master<br/>Job Queue)]
        DB_REPLICA[(PostgreSQL<br/>Replica<br/>Read Only)]
    end
    
    subgraph "Time Series DB"
        INFLUX[(InfluxDB<br/>Candles Data)]
    end
    
    subgraph "Monitoring"
        PROM[Prometheus]
        GRAF[Grafana]
    end
    
    LB --> API1
    LB --> API2
    LB --> API3
    
    API1 --> DB_MASTER
    API2 --> DB_MASTER
    API3 --> DB_MASTER
    
    W1 --> DB_MASTER
    W2 --> DB_MASTER
    W3 --> DB_MASTER
    
    W1 --> INFLUX
    W2 --> INFLUX
    W3 --> INFLUX
    
    W1 --> PROM
    W2 --> PROM
    W3 --> PROM
    API1 --> PROM
    API2 --> PROM
    API3 --> PROM
    
    PROM --> GRAF
    
    DB_MASTER --> DB_REPLICA
    
    style LB fill:#9B59B6
    style API1 fill:#4A90E2
    style API2 fill:#4A90E2
    style API3 fill:#4A90E2
    style W1 fill:#50C878
    style W2 fill:#50C878
    style W3 fill:#50C878
    style DB_MASTER fill:#FF6B6B
    style INFLUX fill:#FFD93D
    style PROM fill:#E67E22
    style GRAF fill:#E67E22
```

## Deployment Components

### Load Balancer
- **NGINX/Cloudflare**: Distributes incoming requests across API servers
- Health checks and failover support

### API Server Cluster
- **3+ Instances**: Horizontally scalable Orleans silos
- Each instance handles HTTP requests and Orleans grain operations
- Ports: 11111, 11121, 11131 (for clustering)

### Compute Worker Cluster
- **3+ Instances**: Dedicated CPU workers
- Each worker: 8 CPU cores, 6 concurrent backtests
- Total capacity: 18 concurrent backtests across cluster

### Database Cluster
- **Master**: Handles all writes (job creation, updates)
- **Replica**: Read-only for status queries and reporting

### Monitoring
- **Prometheus**: Metrics collection
- **Grafana**: Visualization and dashboards