290 lines
8.6 KiB
Python
290 lines
8.6 KiB
Python
# ajouter cette ligne en bas du fichier : sudo visudo
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# gilles ALL=(ALL) NOPASSWD: /sbin/shutdown
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# ajouter le hostname du computer
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import os
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import time
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import json
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import paho.mqtt.client as mqtt
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import subprocess
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import threading
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import psutil
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import socket
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hostname = socket.gethostname()
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# Fonctions pour obtenir les températures CPU
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def get_cpu_temperature():
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temps = psutil.sensors_temperatures()
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for name, entries in temps.items():
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#if name == 'k10temp':
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if name == 'coretemp':
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for entry in entries:
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#if entry.label == 'Tctl':
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if entry.label == 'Package id 0':
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return entry.current
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def get_cpu_usage():
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cpu_usage = psutil.cpu_percent()
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return round(cpu_usage, 1) # Arrondir à 1 chiffre après la virgule
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# Paramètres MQTT
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mqtt_broker_ip_address = "10.0.0.3"
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mqtt_port = 1883
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mqtt_username = ""
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mqtt_password = ""
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#update_frequency = 60 # Mise à jour toutes les 60 secondes
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discovery_prefix = "homeassistant"
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update_frequency = 5 # en secondes
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# Fonction pour obtenir la quantité de mémoire utilisée
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def get_memory_used():
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memory_info = psutil.virtual_memory()
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memory_used_mb = memory_info.used / 1024 / 1024 # Convertir en MB
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return round(memory_used_mb) # Arrondir à 0 chiffre après la virgule
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device_info = {
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"identifiers": ["Mqtt_pilot"],
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"name": f"{hostname}",
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"manufacturer": "Black",
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"model": "desktop",
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"sw_version": "1.0.0",
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"suggested_area": "salon",
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}
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# Configuration des entités
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shutdown_entity = {
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"name": f"shutdown_{hostname}",
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"type": "switch",
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"unique_id": f"shutdown_{hostname}_44:37:e6:6b:53:86",
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"command_topic": f"pilot/{hostname}/shutdown/available",
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"state_topic": f"pilot/{hostname}/shutdown",
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"availability_topic": f"pilot/{hostname}/shutdown/available",
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"device_class": "switch",
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"payload_on": "ON",
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"payload_off": "OFF",
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"payload_available": "online",
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"payload_not_available": "offline",
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"icon": "mdi:power",
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"device": device_info,
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}
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cpu_temp_entity = {
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"name": f"cpu_temp_{hostname}",
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"type": "sensor",
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"unique_id": f"cpu_temp_{hostname}_44:37:e6:6b:53:86",
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"state_topic": f"pilot/{hostname}/cpu_temp",
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"availability_topic": f"pilot/{hostname}/cpu_temp/available",
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"device_class": "temperature",
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"unit_of_measurement": "°C",
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"payload_available": "online",
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"payload_not_available": "offline",
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"icon": "mdi:thermometer",
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"device": device_info,
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}
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# Définition de l'entité memory_used
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memory_used_entity = {
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"name": f"memory_used_{hostname}",
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"type": "sensor",
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"unique_id": f"memory_used_{hostname}_44:37:e6:6b:53:86",
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"state_topic": f"pilot/{hostname}/memory_used",
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"availability_topic": f"pilot/{hostname}/memory_used/available",
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# "device_class": "memory",
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"unit_of_measurement": "MB",
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"payload_available": "online",
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"payload_not_available": "offline",
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"icon": "mdi:memory",
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"device": device_info,
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}
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cpu_usage_entity = {
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"name": f"cpu_usage_{hostname}",
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"type": "sensor",
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"unique_id": f"cpu_usage_{hostname}_44:37:e6:6b:53:86",
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"state_topic": f"pilot/{hostname}/cpu_usage",
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"availability_topic": f"pilot/{hostname}/cpu_usage/available",
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"unit_of_measurement": "%",
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"payload_available": "online",
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"payload_not_available": "offline",
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"icon": "mdi:memory",
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"device": device_info,
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}
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def publish_discovery_messages(client):
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# Publie les messages de découverte pour les entités
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# ...
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print("publish_discovery_messages")
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client.publish(
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f"{discovery_prefix}/switch/{hostname}/{shutdown_entity['name']}/config",
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json.dumps(shutdown_entity),
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retain=True,
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)
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# Publication de la configuration du capteur cpu_temp
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client.publish(
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f"{discovery_prefix}/sensor/{hostname}/{cpu_temp_entity['name']}/config",
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json.dumps(cpu_temp_entity),
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retain=True,
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)
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# Publication de la configuration du capteur memory_used
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client.publish(
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f"{discovery_prefix}/sensor/{hostname}/{memory_used_entity['name']}/config",
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json.dumps(memory_used_entity),
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retain=True,
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)
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# Publication de la disponibilité pour l'entité cpu_usage
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client.publish(
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f"{discovery_prefix}/sensor/{hostname}/{cpu_usage_entity['name']}/config",
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json.dumps(cpu_usage_entity),
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retain=True,
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)
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# client.publish(f"{discovery_prefix}/sensor/{battery_entity['name']}/config", json.dumps(battery_entity), retain=True)
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def publish_availability(client):
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client.publish(
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shutdown_entity["availability_topic"],
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shutdown_entity["payload_available"],
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retain=True,
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)
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# Publication de la disponibilité pour l'entité cpu_temp
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client.publish(
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cpu_temp_entity["availability_topic"],
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cpu_temp_entity["payload_available"],
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retain=True,
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)
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# Publication de la disponibilité pour l'entité memory_used
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client.publish(
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memory_used_entity["availability_topic"],
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memory_used_entity["payload_available"],
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retain=True,
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)
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client.publish(
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cpu_usage_entity["availability_topic"],
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cpu_usage_entity["payload_available"],
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retain=True,
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)
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print("Published availability for all entities")
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def on_connect(client, userdata, flags, rc):
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if rc == 0:
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print("Connected with result code {rc}")
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client.subscribe(shutdown_entity["command_topic"])
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publish_discovery_messages(client)
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publish_availability(client)
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# publish_sensor_data(
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# client
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# ) # Démarre la première publication des données du capteur
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# Publier l'état "ON" pour le switch au démarrage
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client.publish(
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shutdown_entity["state_topic"], shutdown_entity["payload_on"], retain=True
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)
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print(f"Set {shutdown_entity['name']} to ON")
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def on_message(client, userdata, message):
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# Gestion des messages MQTT
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print("on_message")
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# Vérifier si le message est pour le switch "shutdown"
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if message.topic == shutdown_entity["command_topic"]:
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if message.payload.decode() == shutdown_entity["payload_off"]:
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print("Received 'OFF' command - shutting down the system")
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client.publish(
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shutdown_entity["state_topic"],
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shutdown_entity["payload_off"],
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retain=True,
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)
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# Exécuter la commande de shutdown
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time.sleep(1)
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client.publish(
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shutdown_entity["availability_topic"],
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shutdown_entity["payload_not_available"],
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retain=True,
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)
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time.sleep(1)
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subprocess.run(["sudo", "shutdown", "-h", "now"])
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elif message.payload.decode() == shutdown_entity["payload_on"]:
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print("Received 'ON' command - no action for 'ON'")
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def publish_sensor_values(client):
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cpu_temp = get_cpu_temperature()
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if cpu_temp is not None:
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client.publish(cpu_temp_entity["state_topic"], round(cpu_temp, 1), retain=True)
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memory_used = get_memory_used()
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if memory_used is not None:
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client.publish(memory_used_entity["state_topic"], memory_used, retain=True)
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cpu_usage = get_cpu_usage()
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if cpu_usage is not None:
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client.publish(cpu_usage_entity["state_topic"], cpu_usage, retain=True)
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# Configuration et démarrage du client MQTT
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client = mqtt.Client()
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client.username_pw_set(mqtt_username, mqtt_password)
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client.on_connect = on_connect
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client.on_message = on_message
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client.connect(mqtt_broker_ip_address, mqtt_port, 60)
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client.loop_start()
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# Maintenir le script en exécution
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try:
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while True:
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publish_availability(client) # Maintenir l'état disponible
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publish_sensor_values(client) # Publier les valeurs des capteurs
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time.sleep(update_frequency) # Attendre avant la prochaine mise à jour
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except KeyboardInterrupt:
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print("Script interrupted, closing MQTT connection")
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# Publier l'état "unavailable" pour les entités
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client.publish(
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shutdown_entity["availability_topic"],
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shutdown_entity["payload_not_available"],
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retain=True,
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)
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client.publish(
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cpu_temp_entity["availability_topic"],
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cpu_temp_entity["payload_not_available"],
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retain=True,
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)
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client.publish(
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memory_used_entity["availability_topic"],
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memory_used_entity["payload_not_available"],
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retain=True,
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)
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client.publish(
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cpu_usage_entity["availability_topic"],
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cpu_usage_entity["payload_not_available"],
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retain=True,
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)
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client.disconnect()
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