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v-m: Add alert for Frigate camera no video 

At some point this week, the front porch camera stopped sending video.
I'm not sure exactly what happened to it, but Frigate kept logging
"Unable to read frames from ffmpeg process."  I power-cycled the camera,
which resolved the issue.

Unfortunately, no alerts were generated about this situation.  Home
Assistant did not consider the camera entity unavailable, presumably
because Frigate was still reporting stats about it.  Thus, I missed
several important notifications.  To avoid this in the future, I have
enabled the "Camera FPS" sensors for all of the cameras in Home
Assistant, and added this alert to trigger when the reported framerate
is 0.

I really also need to get alerts for log events configured, as that
would also indicated there was an issue.
pull/48/head
Dustin 2025-01-26 09:21:55 -06:00
parent 5065e61a2d
commit a87b53e3ac
1 changed files with 8 additions and 0 deletions
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8
victoria-metrics/alerts.yml
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@ -132,6 +132,14 @@ groups:
expr: expr:
homeassistant_entity_available{domain="camera"} != 1 homeassistant_entity_available{domain="camera"} != 1
for: 10m for: 10m
- alert: No camera video frames
expr:
homeassistant_sensor_unit_fps{entity=~"sensor.*_camera_fps"} <= 0
annotations:
summary: No video received from camera
description: >-
Frigate is not receiving video from the camera. The camera may be
offline.
- name: Home Assistant - name: Home Assistant
rules: rules: