v-m/alerts: Add Zigbee+ZWave network alerts

victoria-metrics/alerts.yml

@@ -77,11 +77,39 @@ groups:
       homeassistant_entity_available{domain="camera"} != 1
     for: 10m
 
-- name: Sensors
+- name: Home Assistant
   rules:
   - alert: Battery Low
     expr:
       homeassistant_sensor_battery_percent{entity!~"sensor\\.(pixel_|sm_p610).*"} < 10
+    annotations:
+      summary: >-
+        Low battery: {{ $labels.friendly_name }}
+      severity: minor
+  - alert: Z-Wave Network is Offline
+    expr:
+      sum(
+        homeassistant_entity_available{entity="sensor.usb_controller_status"}
+      ) without (
+        friendly_name
+      ) < 1
+    annotations:
+      summary: The Z-Wave network controller is offline
+      description: >-
+        Home Assistant is not able to communicate with ZWaveJS, or ZWaveJS is
+        not able to connect to the Z-Wave USB controller.  Z-Wave devices like
+        light switches, door sensors, and smart plugs will not work until the
+        Z-Wave network is operational again.
+  - alert: Zigbee Network is Offline
+    expr:
+      homeassistant_binary_sensor_state{entity="binary_sensor.zigbee2mqtt_bridge_connection_state"} == 0
+    annotations:
+      summary: The Zigbee network bridge is offline
+      description: >-
+        Home Assistant is not able to communicate with Zigbee2MQTT, or
+        Zigbee2MQTT is not able to connect to the Z-Wave USB controller.
+        Zigbee devices like smart bulbs and buttons will not work until the
+        Zigbee network is operational again.
 
 - name: PostgreSQL
   rules: