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[monitoring] HomeAssistantCriticalSensorUnavailable alert

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Viktor Barzin 2026-04-22 14:52:23 +00:00
parent dc05c440bc
commit fdced7577b
1 changed files with 8 additions and 0 deletions
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8
stacks/monitoring/modules/monitoring/prometheus_chart_values.tpl
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@ -1081,6 +1081,14 @@ serverFiles:
severity: warning
annotations:
summary: "Home Assistant down: {{ $labels.instance }}"
- alert: HomeAssistantCriticalSensorUnavailable
expr: haos_entity_available{entity=~"sensor\\.(tesla_t4_gpu_(temperature|power_usage|utilization|memory_used)|r730_(cpu_temperature|power_consumption|power_supply_input_voltage_[12]|system_board_(exhaust|inlet)_temperature)|ups_(input_voltage|output_voltage|load|battery_remaining|output_source))"} == 0
for: 15m
labels:
severity: critical
annotations:
summary: "HA sensor unavailable: {{ $labels.friendly_name }} ({{ $labels.entity }})"
description: "{{ $labels.entity }} on {{ $labels.instance }} has been unavailable for 15+ minutes. Common cause: REST sensor needs HA restart (reload_all doesn't rebuild rest: platform). Verify exporter endpoint from HA: `ssh vbarzin@192.168.1.8` → `curl -sk <exporter-url>`. Fix: `curl -X POST -H \"Authorization: Bearer $HOME_ASSISTANT_SOFIA_TOKEN\" $HOME_ASSISTANT_SOFIA_URL/api/services/homeassistant/restart`."
- alert: CoreDNSErrors
expr: rate(coredns_dns_responses_total{rcode="SERVFAIL"}[5m]) > 1 and on() (time() - process_start_time_seconds{job="prometheus"}) > 900
for: 10m