Docs: EMQX Rule Engine configuration for Fiware brokers forwarding

This commit is contained in:
Eric FELIXINE
2026-05-04 21:53:04 -04:00
parent 88f0d1e675
commit 20fcca5a2b

View File

@@ -0,0 +1,57 @@
# EMQX Rule Engine Configuration
# Objectif: Forward MQTT messages from all brokers to Fiware brokers
## Architecture cible
- Simulator → MQTT → EMQX, Mosquitto, BunkerM
- EMQX Rule Engine → HTTP POST → Orion-LD, Stellio, FROST-Server
- Mosquitto Bridge → EMQX (qui fait le forwarding)
- BunkerM Bridge → EMQX (qui fait le forwarding)
## Configuration EMQX (via Dashboard: http://localhost:18081)
### 1. Créer une Règle (Rule) pour forwarder vers Orion-LD
- **SQL**: `SELECT * FROM "city/sensors/#"`
- **Action**: HTTP Server (Webhook)
- **URL**: `http://localhost:2026/ngsi-ld/v1/entities`
- **Headers**:
- `Content-Type: application/ld+json`
- `NGSILD-Tenant: smartcity`
- **Body**: Transformez le payload MQTT en NGSI-LD
### 2. Créer une Règle pour forwarder vers Stellio
- **SQL**: `SELECT * FROM "city/sensors/#"`
- **Action**: HTTP Server
- **URL**: `http://localhost:8080/ngsi-ld/v1/entities`
- **Headers**: Similar to Orion-LD
### 3. Créer une Règle pour forwarder vers FROST-Server
- **SQL**: `SELECT * FROM "city/sensors/#"`
- **Action**: HTTP Server
- **URL**: `http://localhost:8086/FROST-Server/v1.1/...`
- **Body**: Format SensorThings API
## Alternative: Utiliser Mosquitto Bridge
Dans `/mosquitto/config/mosquitto.conf`:
```conf
# Bridge vers EMQX (déjà configuré)
connection emqx_bridge
address emqx_emqx_1:1883
topic city/sensors/# out 2
# Forward vers HTTP (nécessite un plugin ou script externe)
# Mosquitto ne supporte pas nativement MQTT-to-HTTP
```
## Solution recommandée
1. **Configurer EMQX Rule Engine** via Dashboard (http://localhost:18081)
2. **Mosquitto** et **BunkerM** : Bridge vers EMQX (qui fait le forwarding)
3. **Vérifier** que Orion-LD, Stellio, FROST reçoivent les données
## Test manuel
```bash
# Publier un message sur EMQX
mosquitto_pub -h localhost -p 11883 -t "city/sensors/test" -m '{"id":"test"}'
# Vérifier Orion-LD
curl http://localhost:2026/ngsi-ld/v1/entities/test
```