Add prometheus metrics

docker/main/requirements-wheels.txt

@@ -49,7 +49,4 @@ openai == 1.51.*
 # push notifications
 py-vapid == 1.9.*
 pywebpush == 2.0.*
-# alpr
-pyclipper == 1.3.*
-shapely == 2.0.*
 prometheus-client == 0.21.*

frigate/api/app.py

@@ -37,6 +37,9 @@ from frigate.util.services import (
 )
 from frigate.version import VERSION
 
+from prometheus_client import generate_latest, CONTENT_TYPE_LATEST
+from fastapi.responses import Response
+
 logger = logging.getLogger(__name__)
 
 
@@ -145,9 +148,9 @@ def config(request: Request):
     config["model"]["colormap"] = config_obj.model.colormap
 
     for detector_config in config["detectors"].values():
-        detector_config["model"]["labelmap"] = (
-            request.app.frigate_config.model.merged_labelmap
-        )
+        detector_config["model"][
+            "labelmap"
+        ] = request.app.frigate_config.model.merged_labelmap
 
     return JSONResponse(content=config)
 

frigate/stats/emitter.py

@@ -14,6 +14,8 @@ from frigate.const import FREQUENCY_STATS_POINTS
 from frigate.stats.prometheus import update_metrics
 from frigate.stats.util import stats_snapshot
 from frigate.types import StatsTrackingTypes
+from frigate.stats.prometheus import update_metrics
+
 
 logger = logging.getLogger(__name__)
 

frigate/stats/prometheus.py

@@ -1,12 +1,12 @@
-from typing import Dict
-
 from prometheus_client import (
-    CONTENT_TYPE_LATEST,
     Counter,
     Gauge,
+    Histogram,
     Info,
     generate_latest,
+    CONTENT_TYPE_LATEST,
 )
+from typing import Dict
 
 # System metrics
 SYSTEM_INFO = Info("frigate_system", "System information")