> ## Documentation Index
> Fetch the complete documentation index at: https://docs.odigos.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Architecture

> Learn about the architecture of Odigos Central, including the central cluster components and remote cluster proxies.

Odigos Central consists of components deployed in a **central (management) cluster** and a lightweight proxy in each **remote cluster**.

```mermaid theme={null}
flowchart TB
    subgraph central [Central Cluster]
        UI[Central UI<br/>Port 3000]
        Backend[Central Backend<br/>Port 8081]
        Redis[Redis<br/>Port 6379]
        Keycloak[Keycloak<br/>Port 8080]
        UI --> Backend
        Backend --> Redis
        Backend --> Keycloak
    end

    subgraph remote1 [Remote Cluster 1]
        Proxy1[Central Proxy]
        Odigos1[Odigos Components]
        Proxy1 --> Odigos1
    end

    subgraph remote2 [Remote Cluster 2]
        Proxy2[Central Proxy]
        Odigos2[Odigos Components]
        Proxy2 --> Odigos2
    end

    Backend <-->|WebSocket| Proxy1
    Backend <-->|WebSocket| Proxy2
```

## Components

| Component           | Description                                                                                                     |
| ------------------- | --------------------------------------------------------------------------------------------------------------- |
| **Central UI**      | Web interface for managing all connected clusters, sources, destinations, and sampling configurations           |
| **Central Backend** | API server that stores configuration in Redis and communicates with remote clusters via WebSocket               |
| **Central Proxy**   | Lightweight service deployed in each remote cluster that bridges the central backend to local Odigos components |