prometheus-frigate-exporter/prometheus_frigate_exporter.py

128 lines
6.2 KiB
Python

from prometheus_client.core import GaugeMetricFamily, InfoMetricFamily, REGISTRY
from prometheus_client import start_http_server
from urllib.request import urlopen
import json
import re
import time
import sys
import logging
class CustomCollector(object):
def __init__(self, url):
self.url = url
def collect(self):
data = json.loads(urlopen(self.url).read())
# camera stats
ffmpeg_pid = GaugeMetricFamily('frigate_ffmpeg_pid', 'PID for ffmpeg process', labels=['camera'])
capture_pid = GaugeMetricFamily('frigate_capture_pid', 'PID for the ffmpeg process that consumes this camera', labels=['camera'])
detect_pid = GaugeMetricFamily('frigate_detect_pid', 'PID for the process that runs detection for this camera', labels=['camera'])
camera_fps = GaugeMetricFamily('frigate_camera_fps', 'Frames per second being consumed from your camera.', labels=['camera'])
detection_fps = GaugeMetricFamily('frigate_detection_fps', 'Number of times detection is run per second.', labels=['camera'])
process_fps = GaugeMetricFamily('frigate_process_fps', 'Frames per second being processed by frigate.', labels=['camera'])
skipped_fps = GaugeMetricFamily('frigate_skipped_fps', 'Frames per second skip for processing by frigate.', labels=['camera'])
detection_enabled = GaugeMetricFamily('frigate_detection_enabled', 'Detection enabled for camera', labels=['camera'])
for d in data:
try:
ffmpeg_pid.add_metric([d], float(data[d]['ffmpeg_pid']))
detect_pid.add_metric([d], float(data[d]['pid']))
capture_pid.add_metric([d], float(data[d]['capture_pid']))
camera_fps.add_metric([d], (data[d]['camera_fps']))
detection_fps.add_metric([d], float(data[d]['detection_fps']))
process_fps.add_metric([d], float(data[d]['process_fps']))
skipped_fps.add_metric([d], float(data[d]['skipped_fps']))
detection_enabled.add_metric([d], float(data[d]['detection_enabled']))
except (AttributeError, TypeError, KeyError):
pass
yield ffmpeg_pid
yield capture_pid
yield detect_pid
yield camera_fps
yield detection_fps
yield process_fps
yield skipped_fps
yield detection_enabled
# detector stats
yield GaugeMetricFamily('frigate_detection_total_fps', 'Sum of detection_fps across all cameras and detectors.', value=data['detection_fps'])
detector_inference_speed = GaugeMetricFamily('frigate_detector_inference_speed_seconds', 'Time spent running object detection in seconds.', labels=['name'])
detector_pid = GaugeMetricFamily('frigate_detector_pid', 'PID for the shared process that runs object detection on the detector', labels=['name'])
for d in data['detectors']:
detector_inference_speed.add_metric([d], data['detectors'][d]['inference_speed']/1000.0) # ms to seconds
detector_pid.add_metric([d], data['detectors'][d]['pid'])
yield detector_inference_speed
yield detector_pid
# process stats
cpu_usages = GaugeMetricFamily('frigate_cpu_usage_percent', 'Process CPU usage %', labels=['pid'])
mem_usages = GaugeMetricFamily('frigate_mem_usage_percent', 'Process memory usage %', labels=['pid'])
data['cpu_usages'].pop('Tasks:')
for d in data['cpu_usages']:
cpu_usages.add_metric([d], float(data['cpu_usages'][d]['cpu']))
mem_usages.add_metric([d], float(data['cpu_usages'][d]['mem']))
yield cpu_usages
yield mem_usages
# gpu stats
gpu_usages = GaugeMetricFamily('frigate_gpu_usage_percent', 'GPU utilisation %', labels=['gpu'])
gpu_mem_usages = GaugeMetricFamily('frigate_gpu_mem_usage_percent', 'GPU memory usage %', labels=['gpu'])
for d in data['gpu_usages']:
try:
gpu_usages.add_metric([d], float(re.findall(r'\d+', data['gpu_usages'][d]['gpu'])[0]))
mem_usages.add_metric([d], float(re.findall(r'\d+', data['gpu_usages'][d]['mem'])[0])) # no value for me
except IndexError:
pass
yield gpu_usages
yield gpu_mem_usages
# service stats
yield GaugeMetricFamily('frigate_service_last_updated_timestamp', 'Stats recorded time (unix timestamp)', value=data['service']['last_updated'])
info = {'latest_version': data['service']['latest_version'], 'version': data['service']['version']}
yield InfoMetricFamily('frigate_service', 'Frigate version info', value=info)
yield GaugeMetricFamily('frigate_service_uptime_seconds', 'Uptime seconds', value=data['service']['uptime'])
# temperatures: no data for me
storage_free = GaugeMetricFamily('frigate_storage_free_bytes', 'Storage free bytes', labels=['storage'])
storage_mount_type = InfoMetricFamily('frigate_storage_mount_type', 'Storage mount type', labels=['storage'])
storage_total = GaugeMetricFamily('frigate_storage_total_bytes', 'Storage total bytes', labels=['storage'])
storage_used = GaugeMetricFamily('frigate_storage_used_bytes', 'Storage used bytes', labels=['storage'])
for d in data['service']['storage']:
storage_free.add_metric([d], data['service']['storage'][d]['free']*1e6) #MB to bytes
storage_total.add_metric([d], (data['service']['storage'][d]['total']*1e6))
storage_used.add_metric([d], (data['service']['storage'][d]['used']*1e6))
storage_mount_type.add_metric([d], {'mount_type': data['service']['storage'][d]['mount_type']})
yield storage_free
yield storage_mount_type
yield storage_total
yield storage_used
if __name__ == '__main__':
logging.basicConfig(format='%(asctime)s - %(message)s', level=logging.INFO)
try:
REGISTRY.register(CustomCollector(sys.argv[1]))
except IndexError:
logging.error("Provide Frigate stats url as environment variable, e.g. FRIGATE_STATS_URL=http://<your-frigate-ip>:5000/api/stats")
exit()
start_http_server(9100)
logging.info('Started: ' + sys.argv[1])
while True: time.sleep(1)
logging.info("Finished")