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ha-mqtt-au
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README.md
191
README.md
@@ -156,21 +156,136 @@ python snmp2mqtt.py -c config.yaml
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## Intégration Home Assistant
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### MQTT Discovery (Découverte automatique)
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Le script implémente le protocole **MQTT Discovery** de Home Assistant pour une intégration transparente et automatique. Aucune configuration manuelle n'est nécessaire dans Home Assistant.
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#### Fonctionnement de l'autodécouverte
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1. **Au démarrage** : Publication des configurations de découverte
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2. **Pendant l'exécution** : Mise à jour continue des états des capteurs
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3. **Surveillance** : Gestion des statuts de disponibilité (online/offline)
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### Topics MQTT générés
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Le script génère automatiquement les topics MQTT suivants :
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#### Topics de découverte (Discovery)
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Chaque capteur génère un topic de configuration individuel :
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```
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homeassistant/{platform}/{node_id}/{object_id}/config
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```
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- **Configuration** : `homeassistant/device/{device_id}/config`
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- **État** : `SNMP/{device_name}/state`
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**Exemples** :
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```bash
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# Capteur de trafic réseau
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homeassistant/sensor/mikrotik_hex/mikrotik_hex_starlink_in/config
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### Découverte automatique
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# Statut de connectivité
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homeassistant/binary_sensor/mikrotik_hex/mikrotik_hex_starlink_status/config
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```
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Les équipements et capteurs sont automatiquement découverts dans Home Assistant via MQTT Discovery. Chaque équipement apparaîtra avec :
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#### Topics de données
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- **État** : `SNMP/{device_name}/state` - Données JSON des capteurs
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- **Disponibilité** : `SNMP/{device_name}/availability` - Statut online/offline
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- Un identifiant unique basé sur le nom et l'IP
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- Des capteurs groupés par équipement
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- Des icônes et unités appropriées selon la classe d'équipement
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- Des modèles de valeurs JSON pour extraire les données
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### Configuration automatique des capteurs
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Chaque capteur est configuré avec :
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```json
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{
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"name": "mikrotik_hex starlink_in",
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"unique_id": "mikrotik_hex_192_168_10_2_starlink_in",
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"state_topic": "SNMP/mikrotik_hex/state",
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"value_template": "{{ value_json.starlink_in }}",
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"device_class": "data_size",
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"unit_of_measurement": "bit",
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"icon": "mdi:network",
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"device": {
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"identifiers": ["snmp2mqtt_mikrotik_hex_192_168_10_2"],
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"name": "mikrotik_hex",
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"model": "SNMP Device",
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"manufacturer": "Network Equipment"
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},
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"availability": {
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"topic": "SNMP/mikrotik_hex/availability",
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"payload_available": "online",
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"payload_not_available": "offline"
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}
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}
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```
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### Découverte automatique dans Home Assistant
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#### Regroupement par équipement
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Tous les capteurs d'un même équipement sont automatiquement regroupés sous une seule carte d'équipement :
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- **Identifiant unique** basé sur `device_name` + `ip`
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- **Nom d'affichage** basé sur le nom de l'équipement
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- **Métadonnées** : modèle, fabricant, version du logiciel
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#### Types de capteurs supportés
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| Type HA | Platform | Description | Icône |
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|---------|----------|-------------|-------|
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| `sensor` | `sensor` | Valeurs numériques (trafic, CPU, etc.) | Selon device_class |
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| `binary_sensor` | `binary_sensor` | États binaires (online/offline, actif/inactif) | mdi:network-outline |
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#### Classes d'équipements et icônes
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| Device Class | Utilisation | Icône Auto | Unité Suggérée |
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|--------------|-------------|------------|----------------|
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| `data_size` | Trafic réseau, volumes de données | mdi:network | bit, byte, MB, GB |
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| `connectivity` | Statut des interfaces, connexions | mdi:network-outline | - |
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| `power_factor` | Pourcentages (CPU, mémoire) | mdi:gauge | % |
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| `temperature` | Températures d'équipements | mdi:thermometer | °C, °F |
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| `signal_strength` | Qualité des signaux | mdi:signal | dBm, % |
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### Surveillance de disponibilité
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#### Statuts de disponibilité
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- **Online** : Équipement accessible et données mises à jour
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- **Offline** : Équipement inaccessible ou erreurs SNMP
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#### Mécanisme de heartbeat
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- Mise à jour du statut à chaque cycle de surveillance
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- Marquage offline automatique en cas d'erreur
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- Statut offline lors de l'arrêt du script
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### Persistance et redémarrages
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#### Configuration Discovery retenue
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- **Flag retain=true** sur les topics de configuration
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- **Redécouverte automatique** après redémarrage de Home Assistant
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- **Pas de perte de configuration** lors des redémarrages
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#### Données d'état temps réel
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- **Flag retain=false** sur les données d'état
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- **Données fraîches uniquement** après redémarrage
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- **Historique préservé** par Home Assistant
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### Intégration dans l'interface Home Assistant
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Après démarrage du script, vous verrez automatiquement :
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1. **Page Équipements** : Nouveaux équipements SNMP avec leurs capteurs
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2. **États et Historiques** : Données temps réel et graphiques
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3. **Cartes automatiques** : Ajout facile aux tableaux de bord
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4. **Notifications** : Alertes sur les changements d'état
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5. **Automations** : Utilisation des capteurs dans les règles
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### Exemple d'équipement découvert
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```
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📱 mikrotik_hex (SNMP Device)
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├── 📊 mikrotik_hex starlink_in (123.45 MB)
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├── 📊 mikrotik_hex starlink_out (67.89 MB)
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├── 🔌 mikrotik_hex starlink_status (Online)
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├── 📊 mikrotik_hex lan_bridge_in (234.56 MB)
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├── 📊 mikrotik_hex lan_bridge_out (78.90 MB)
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└── 🔌 mikrotik_hex lan_bridge_status (Online)
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Statut: Online | Dernière mise à jour: il y a 2 secondes
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```
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## Exemple de configuration complète
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@@ -263,7 +378,63 @@ ping 192.168.10.202
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## Support multi-équipements
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**Note** : Le support complet multi-équipements nécessite une implémentation avec threading/multiprocessing. Actuellement, le script traite le premier équipement de la liste et affiche un avertissement pour les autres.
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Le script supporte nativement la surveillance simultanée de plusieurs équipements grâce à une architecture **multi-threading** :
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### Fonctionnement
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- **Thread indépendant** pour chaque équipement configuré
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- **Surveillance parallèle** : tous les équipements sont surveillés simultanément
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- **Isolation des erreurs** : la défaillance d'un équipement n'affecte pas les autres
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- **Clients MQTT séparés** : chaque thread utilise son propre client MQTT
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- **Arrêt gracieux** : tous les threads s'arrêtent proprement sur signal
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### Avantages
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- ⚡ **Performance optimale** : pas de blocage entre équipements
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- 🔄 **Traitement parallèle** : requêtes SNMP simultanées
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- 🛡️ **Robustesse** : isolation des défaillances
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- 📊 **Scalabilité** : facilement extensible à des dizaines d'équipements
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- 🔧 **Maintenance** : logs clairement identifiés par équipement
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### Configuration multi-équipements
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```yaml
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devices:
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routeur_principal:
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ip: "192.168.10.1"
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snmp_community: "public"
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oids:
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# ... configuration OID ...
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switch_bureau:
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ip: "192.168.10.5"
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snmp_community: "public"
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oids:
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# ... configuration OID ...
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point_acces_wifi:
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ip: "192.168.10.10"
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snmp_community: "private"
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oids:
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# ... configuration OID ...
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```
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### Logs multi-threading
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Chaque thread est clairement identifié dans les logs :
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```
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(INFO) [Device-routeur_principal] Starting monitoring thread
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(INFO) [Device-switch_bureau] MQTT client connected
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(DEBUG) [Device-point_acces_wifi] Published state to SNMP/point_acces_wifi/state
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```
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### Gestion des ressources
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- **Clients MQTT uniques** : ID client basé sur le nom de l'équipement
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- **Topics séparés** : chaque équipement a ses propres topics MQTT
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- **Discovery HA indépendante** : configuration Home Assistant par équipement
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- **Disponibilité individuelle** : statut online/offline par équipement
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## Logs et debugging
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12
config.yaml
12
config.yaml
@@ -82,18 +82,6 @@ devices:
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HA_device_class: "connectivity"
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HA_platform: "binary_sensor"
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# Example of how to add another device:
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# another_device:
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# ip: "192.168.10.3"
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# snmp_community: "public"
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# oids:
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# - name: "cpu_usage"
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# oid: ".1.3.6.1.4.1.14988.1.1.3.14.0" # MikroTik CPU usage
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# type: "int"
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# HA_device_class: "power_factor"
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# HA_platform: "sensor"
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# HA_unit: "%"
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# OID Configuration Reference:
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# - name: Unique identifier for this metric (used in MQTT topics and Home Assistant)
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# - oid: SNMP Object Identifier
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294
snmp2mqtt.py
294
snmp2mqtt.py
@@ -11,12 +11,99 @@ import yaml
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import argparse
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import sys
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import os
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import threading
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import signal
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import time
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logging.basicConfig(
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format='(%(levelname)s) %(message)s',
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format='(%(levelname)s) [%(threadName)s] %(message)s',
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level=logging.DEBUG
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)
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# Global shutdown flag
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shutdown_event = threading.Event()
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class DeviceMonitorThread(threading.Thread):
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"""Thread class for monitoring a single device"""
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def __init__(self, device_name, device_config, mqtt_config, sleep_interval=2):
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super().__init__(name=f"Device-{device_name}")
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self.device_name = device_name
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self.device_config = device_config
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self.mqtt_config = mqtt_config.copy()
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self.sleep_interval = sleep_interval
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self.daemon = True # Dies when main thread dies
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# Create unique client ID for this device
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self.mqtt_config['client_id'] = f"snmp-mqtt-{device_name}-{random.randint(0, 1000)}"
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# Create device request object
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self.req = {
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"device_name": device_name,
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"ip": device_config["ip"],
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"snmp_community": device_config["snmp_community"],
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"oids": device_config["oids"]
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}
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def run(self):
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"""Main thread execution"""
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logging.info(f"Starting monitoring thread for device: {self.device_name} ({self.device_config['ip']})")
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try:
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# Setup MQTT connection
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client = connect_mqtt(self.mqtt_config)
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client.loop_start()
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state_topic = f"SNMP/{self.device_name}/state"
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availability_topic = f"SNMP/{self.device_name}/availability"
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logging.info(f"[{self.device_name}] MQTT client connected")
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# Publish Home Assistant autodiscovery configuration (only once on startup)
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publish_ha_autodiscovery_config(client, self.req)
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# Mark device as available
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publish(availability_topic, client, "online", True, 1)
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logging.info(f"[{self.device_name}] Starting monitoring loop")
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# Main monitoring loop
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while not shutdown_event.is_set():
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try:
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# Get SNMP data and publish state
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state = asyncio.run(get_snmp(self.req))
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publish(state_topic, client, state, False, 0)
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logging.debug(f"[{self.device_name}] Published state to {state_topic}: {json.dumps(state)}")
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# Update availability (heartbeat)
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publish(availability_topic, client, "online", False, 1)
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except Exception as e:
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logging.error(f"[{self.device_name}] Error in monitoring loop: {e}")
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# Mark as offline on error
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publish(availability_topic, client, "offline", False, 1)
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# Wait for next iteration or shutdown signal
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shutdown_event.wait(timeout=self.sleep_interval)
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# Cleanup - mark device as offline
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publish(availability_topic, client, "offline", True, 1)
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client.loop_stop()
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client.disconnect()
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logging.info(f"[{self.device_name}] Monitoring thread stopped gracefully")
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except Exception as e:
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logging.error(f"[{self.device_name}] Fatal error in monitoring thread: {e}")
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# Try to mark as offline on fatal error
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try:
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publish(availability_topic, client, "offline", True, 1)
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client.disconnect()
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except:
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pass
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logging.info(f"[{self.device_name}] Thread {self.name} finished")
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def parse_arguments():
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"""Parse command line arguments"""
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@@ -103,7 +190,11 @@ def connect_mqtt(mqtt_config):
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def publish(topic, client, data, retain, qos):
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if isinstance(data, str):
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msg = data
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else:
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msg = json.dumps(data)
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result = client.publish(topic=topic, payload=msg, qos=qos, retain=bool(retain))
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status = result[0]
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if status == 0:
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@@ -146,97 +237,144 @@ async def get_snmp(req):
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return data
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def ha_create_config(req):
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ha_config = {}
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device = {
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"ids": f"{req['device_name']}_{req['ip']}".replace(".", "_"),
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def create_ha_device_info(req):
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"""Create device information for Home Assistant MQTT Discovery"""
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return {
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"identifiers": [f"snmp2mqtt_{req['device_name']}_{req['ip']}".replace(".", "_")],
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"name": req['device_name'],
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"model": "SNMP Device",
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"manufacturer": "Network Equipment",
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"via_device": "snmp2mqtt"
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}
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origin = {
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"name": "snmp2mqtt"
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}
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ha_config.update({"dev": device, "o": origin})
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ha_config.update({"state_topic": f"SNMP/{req['device_name']}/state"})
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ha_config.update({"qos": 2})
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cmps = {}
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for oid in req['oids']:
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cmps.update(
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{
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f"{req['device_name']}_{req['ip']}_{oid['name']}".replace(".", "_"):
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{
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"p": oid['HA_platform'],
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"device_class": oid['HA_device_class'],
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def create_ha_sensor_config(req, oid):
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"""Create Home Assistant MQTT Discovery configuration for a single sensor"""
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device_info = create_ha_device_info(req)
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sensor_id = f"{req['device_name']}_{req['ip']}_{oid['name']}".replace(".", "_")
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config = {
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"name": f"{req['device_name']} {oid['name']}",
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"unique_id": sensor_id,
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"state_topic": f"SNMP/{req['device_name']}/state",
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"value_template": f"{{{{ value_json.{oid['name']} }}}}",
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"unique_id": f"{req['device_name']}_{req['ip']}_{oid['name']}".replace(".", "_"),
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"name": oid['name']
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"device": device_info,
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"origin": {
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"name": "snmp2mqtt",
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"sw_version": "1.0.0",
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"support_url": "https://git.antoineve.me/AntoineVe/snmp2mqtt"
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}
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})
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if "HA_unit" in oid.keys():
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cmps.update(
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{f"{req['device_name']}_{req['ip']}_{oid['name']}".replace(".", "_"):
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{"unit_of_measurement": oid['HA_unit']}})
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ha_config.update({"cmps": cmps})
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logging.debug(f"config : {json.dumps(ha_config)}")
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return ha_config
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def send_to_mqtt(device_name, device_config, mqtt_config, sleep_interval=2):
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"""Send SNMP data to MQTT for a single device"""
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# Create device request object
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req = {
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"device_name": device_name,
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"ip": device_config["ip"],
|
||||
"snmp_community": device_config["snmp_community"],
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"oids": device_config["oids"]
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}
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config = ha_create_config(req)
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client = connect_mqtt(mqtt_config)
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client.loop_start()
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config_topic = f"homeassistant/device/{config['dev']['ids']}/config"
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state_topic = config['state_topic']
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# Add device class if specified
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||||
if 'HA_device_class' in oid:
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config['device_class'] = oid['HA_device_class']
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||||
|
||||
while True:
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||||
try:
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||||
publish(config_topic, client, config, True, 0)
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||||
logging.info(f"{config_topic} -> {config}")
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||||
except Exception as e:
|
||||
logging.error(f"Error publishing config for {device_name}: {e}")
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||||
pass
|
||||
try:
|
||||
state = asyncio.run(get_snmp(req))
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||||
publish(state_topic, client, state, False, 0)
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||||
logging.info(f"{state_topic} -> {state}")
|
||||
except Exception as e:
|
||||
logging.error(f"Error getting SNMP data for {device_name}: {e}")
|
||||
pass
|
||||
sleep(sleep_interval)
|
||||
# Add unit of measurement if specified
|
||||
if 'HA_unit' in oid:
|
||||
config['unit_of_measurement'] = oid['HA_unit']
|
||||
|
||||
# Add icon based on device class
|
||||
icon_mapping = {
|
||||
'data_size': 'mdi:network',
|
||||
'connectivity': 'mdi:network-outline',
|
||||
'power_factor': 'mdi:gauge',
|
||||
'temperature': 'mdi:thermometer',
|
||||
'signal_strength': 'mdi:signal'
|
||||
}
|
||||
if 'HA_device_class' in oid and oid['HA_device_class'] in icon_mapping:
|
||||
config['icon'] = icon_mapping[oid['HA_device_class']]
|
||||
|
||||
# Add availability topic
|
||||
config['availability'] = {
|
||||
"topic": f"SNMP/{req['device_name']}/availability",
|
||||
"payload_available": "online",
|
||||
"payload_not_available": "offline"
|
||||
}
|
||||
|
||||
return config
|
||||
|
||||
|
||||
def get_ha_discovery_topic(req, oid):
|
||||
"""Get the correct Home Assistant MQTT Discovery topic for a sensor"""
|
||||
platform = oid['HA_platform'] # 'sensor' or 'binary_sensor'
|
||||
node_id = req['device_name']
|
||||
object_id = f"{req['device_name']}_{oid['name']}".replace(".", "_")
|
||||
|
||||
# Format: homeassistant/<platform>/<node_id>/<object_id>/config
|
||||
return f"homeassistant/{platform}/{node_id}/{object_id}/config"
|
||||
|
||||
|
||||
def publish_ha_autodiscovery_config(client, req):
|
||||
"""Publish Home Assistant MQTT Discovery configuration for all sensors of a device"""
|
||||
logging.info(f"[{req['device_name']}] Publishing Home Assistant autodiscovery configuration")
|
||||
|
||||
# Publish availability as online
|
||||
availability_topic = f"SNMP/{req['device_name']}/availability"
|
||||
publish(availability_topic, client, "online", True, 1)
|
||||
|
||||
# Publish discovery configuration for each OID/sensor
|
||||
for oid in req['oids']:
|
||||
config = create_ha_sensor_config(req, oid)
|
||||
topic = get_ha_discovery_topic(req, oid)
|
||||
|
||||
# Publish with retain=True so HA discovers it after restarts
|
||||
publish(topic, client, config, True, 1)
|
||||
logging.info(f"[{req['device_name']}] Published discovery config for {oid['name']} to {topic}")
|
||||
|
||||
# Small delay to avoid overwhelming the broker
|
||||
time.sleep(0.1)
|
||||
|
||||
|
||||
def signal_handler(signum, frame):
|
||||
"""Handle shutdown signals gracefully"""
|
||||
logging.info(f"Received signal {signum}, initiating graceful shutdown...")
|
||||
shutdown_event.set()
|
||||
|
||||
|
||||
def process_devices(config):
|
||||
"""Process multiple devices from configuration"""
|
||||
"""Process multiple devices using threading"""
|
||||
mqtt_config = config['mqtt'].copy()
|
||||
mqtt_config['client_id'] = f"snmp-mqtt-{random.randint(0, 1000)}"
|
||||
|
||||
# Get sleep interval from config or use default
|
||||
sleep_interval = config.get('sleep_interval', 2)
|
||||
|
||||
if len(config['devices']) == 1:
|
||||
# Single device mode - run directly
|
||||
device_name = list(config['devices'].keys())[0]
|
||||
device_config = config['devices'][device_name]
|
||||
logging.info(f"Starting monitoring for single device: {device_name}")
|
||||
send_to_mqtt(device_name, device_config, mqtt_config, sleep_interval)
|
||||
else:
|
||||
# Multiple devices mode - would need threading/multiprocessing
|
||||
# For now, let's process the first device and warn about others
|
||||
logging.warning(f"Multiple devices detected ({len(config['devices'])}), but only processing the first one")
|
||||
logging.warning("Multi-device support will require threading implementation")
|
||||
# Setup signal handlers for graceful shutdown
|
||||
signal.signal(signal.SIGINT, signal_handler)
|
||||
signal.signal(signal.SIGTERM, signal_handler)
|
||||
|
||||
device_name = list(config['devices'].keys())[0]
|
||||
device_config = config['devices'][device_name]
|
||||
logging.info(f"Starting monitoring for device: {device_name}")
|
||||
send_to_mqtt(device_name, device_config, mqtt_config, sleep_interval)
|
||||
device_threads = []
|
||||
|
||||
try:
|
||||
logging.info(f"Starting monitoring for {len(config['devices'])} device(s)")
|
||||
|
||||
# Create and start a thread for each device
|
||||
for device_name, device_config in config['devices'].items():
|
||||
thread = DeviceMonitorThread(
|
||||
device_name=device_name,
|
||||
device_config=device_config,
|
||||
mqtt_config=mqtt_config,
|
||||
sleep_interval=sleep_interval
|
||||
)
|
||||
device_threads.append(thread)
|
||||
thread.start()
|
||||
logging.info(f"Started thread for device: {device_name}")
|
||||
|
||||
# Wait for all threads to complete or shutdown signal
|
||||
while any(thread.is_alive() for thread in device_threads) and not shutdown_event.is_set():
|
||||
time.sleep(0.5)
|
||||
|
||||
except Exception as e:
|
||||
logging.error(f"Error in process_devices: {e}")
|
||||
shutdown_event.set()
|
||||
|
||||
# Wait for all threads to finish
|
||||
logging.info("Waiting for all monitoring threads to finish...")
|
||||
for thread in device_threads:
|
||||
if thread.is_alive():
|
||||
thread.join(timeout=5.0) # Wait max 5 seconds per thread
|
||||
if thread.is_alive():
|
||||
logging.warning(f"Thread {thread.name} did not stop gracefully")
|
||||
|
||||
logging.info("All monitoring threads have finished")
|
||||
|
||||
|
||||
def main():
|
||||
|
Reference in New Issue
Block a user