mirror of
https://github.com/tcivie/meshtastic-metrics-exporter.git
synced 2024-12-28 06:59:46 -08:00
84 lines
2.7 KiB
Python
84 lines
2.7 KiB
Python
import logging
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import os
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from datetime import datetime
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import paho.mqtt.client as mqtt
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import redis
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from dotenv import load_dotenv
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from meshtastic.mesh_pb2 import MeshPacket
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from meshtastic.mqtt_pb2 import ServiceEnvelope
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from paho.mqtt.enums import CallbackAPIVersion
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from prometheus_client import CollectorRegistry, start_http_server
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from exporter.processors import MessageProcessor
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def handle_connect(client, userdata, flags, reason_code, properties):
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print(f"Connected with result code {reason_code}")
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client.subscribe(os.getenv('MQTT_TOPIC', 'msh/israel/#'))
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def handle_message(client, userdata, message):
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current_timestamp = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
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print(f"Received message on topic '{message.topic}' at {current_timestamp}")
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envelope = ServiceEnvelope()
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envelope.ParseFromString(message.payload)
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packet: MeshPacket = envelope.packet
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if redis_client.set(str(packet.id), 1, nx=True, ex=os.getenv('redis_expiration', 60), get=True) is not None:
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logging.debug(f"Packet {packet.id} already processed")
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return
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# Process the packet
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processor.process(packet)
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if __name__ == "__main__":
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load_dotenv()
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# Create Redis client
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try:
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redis_client = redis.Redis(
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host=os.getenv('REDIS_HOST'),
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port=int(os.getenv('REDIS_PORT')),
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db=int(os.getenv('REDIS_DB', 0)),
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password=os.getenv('REDIS_PASSWORD', None),
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)
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except Exception as e:
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logging.error(f"Failed to connect to Redis: {e}")
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exit(1)
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# Configure Prometheus exporter
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registry = CollectorRegistry()
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start_http_server(int(os.getenv('PROMETHEUS_COLLECTOR_PORT', 8000)), registry=registry)
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# Create an MQTT client
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mqtt_client = mqtt.Client(
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callback_api_version=CallbackAPIVersion.VERSION2,
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protocol=mqtt.MQTTv5
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)
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mqtt_client.on_connect = handle_connect
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mqtt_client.on_message = handle_message
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if os.getenv('MQTT_IS_TLS', 'false') == 'true':
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tls_context = mqtt.ssl.create_default_context()
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mqtt_client.tls_set_context(tls_context)
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if os.getenv('MQTT_USERNAME', None) and os.getenv('MQTT_PASSWORD', None):
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mqtt_client.username_pw_set(os.getenv('MQTT_USERNAME'), os.getenv('MQTT_PASSWORD'))
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try:
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mqtt_client.connect(
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os.getenv('MQTT_HOST'),
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int(os.getenv('MQTT_PORT')),
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keepalive=int(os.getenv('MQTT_KEEPALIVE', 60)),
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)
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except Exception as e:
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logging.error(f"Failed to connect to MQTT broker: {e}")
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exit(1)
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# Configure the Processor and the Exporter
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processor = MessageProcessor(registry, redis_client)
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mqtt_client.loop_forever()
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