# DEMO 


```mermaid
flowchart LR
    SDK[Python SDK] -->|logs OTLP/HTTP| FB[Fluent Bit]
    SDK -->|metrics Prometheus remote_write| FB

    FB -->|logs| VL[VictoriaLogs]

    FB -->|metrics remote_write| VM[VictoriaMetrics]

    VM -->|query| GF[Grafana]

    VL -->|query| GF
```


# 实际


```mermaid
flowchart TD
    SDK[Python SDK]
    GW[Gateway<br/>Auth 鉴权<br/>Rate Limit 限流]
    FB[Fluent Bit]

    SDK -->|OTLP logs / Prometheus remote_write metrics / OTLP trace + token| GW
    GW -->|logs / metrics / trace| FB

    BK[Backend] -->|trace| FB

    FB -->|logs| VL[VictoriaLogs cluster]
    FB -->|metrics remote_write| VM[VictoriaMetrics]
    FB -->|trace| VT[VictoriaTraces]

    VM -->|query| GF[Grafana]
    VL -->|query| GF
    VT -->|jaeger query| GF
```