Alert thresholds depend on the nature of your applications. Some queries may have arbitrary tolerance thresholds. Building an efficient monitoring platform takes time. 😉
6 Prometheus alerting rules for APC UPS. Exported via mdlayher/apcupsd_exporter. These rules cover critical and warning conditions — copy and paste the YAML into your Prometheus configuration.
groups:
- name: Apcupsd_exporter
rules:
- alert: APCUPSBatteryNearlyEmpty
expr: apcupsd_battery_charge_percent < 10
for: 0m
labels:
severity: critical
annotations:
summary: APC UPS Battery nearly empty (instance {{ $labels.instance }})
description: "Battery is almost empty (< 10% left)\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: APCUPSLessThan15MinutesOfBatteryTimeRemaining
expr: apcupsd_battery_time_left_seconds < 900
for: 0m
labels:
severity: critical
annotations:
summary: APC UPS Less than 15 Minutes of battery time remaining (instance {{ $labels.instance }})
description: "Battery is almost empty (< 15 Minutes remaining)\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: APCUPSACInputOutage
expr: apcupsd_battery_time_on_seconds > 0
for: 0m
labels:
severity: warning
annotations:
summary: APC UPS AC input outage (instance {{ $labels.instance }})
description: "UPS now running on battery (since {{$value | humanizeDuration}})\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: APCUPSLowBatteryVoltage
expr: (apcupsd_battery_volts / apcupsd_battery_nominal_volts) < 0.95 and apcupsd_battery_nominal_volts > 0
for: 0m
labels:
severity: warning
annotations:
summary: APC UPS low battery voltage (instance {{ $labels.instance }})
description: "Battery voltage is lower than nominal (< 95%)\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: APCUPSHighTemperature
expr: apcupsd_internal_temperature_celsius >= 40
for: 2m
labels:
severity: warning
annotations:
summary: APC UPS high temperature (instance {{ $labels.instance }})
description: "Internal temperature is high ({{$value}}°C)\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: APCUPSHighLoad
expr: apcupsd_ups_load_percent > 80
for: 0m
labels:
severity: warning
annotations:
summary: APC UPS high load (instance {{ $labels.instance }})
description: "UPS load is > 80%\n VALUE = {{ $value }}\n LABELS = {{ $labels }}" wget https://raw.githubusercontent.com/samber/awesome-prometheus-alerts/refs/heads/master/dist/rules/apc-ups/apcupsd_exporter.yml
Battery is almost empty (< 10% left)
- alert: APCUPSBatteryNearlyEmpty
expr: apcupsd_battery_charge_percent < 10
for: 0m
labels:
severity: critical
annotations:
summary: APC UPS Battery nearly empty (instance {{ $labels.instance }})
description: "Battery is almost empty (< 10% left)\n VALUE = {{ $value }}\n LABELS = {{ $labels }}" Battery is almost empty (< 15 Minutes remaining)
- alert: APCUPSLessThan15MinutesOfBatteryTimeRemaining
expr: apcupsd_battery_time_left_seconds < 900
for: 0m
labels:
severity: critical
annotations:
summary: APC UPS Less than 15 Minutes of battery time remaining (instance {{ $labels.instance }})
description: "Battery is almost empty (< 15 Minutes remaining)\n VALUE = {{ $value }}\n LABELS = {{ $labels }}" UPS now running on battery (since {{$value | humanizeDuration}})
- alert: APCUPSACInputOutage
expr: apcupsd_battery_time_on_seconds > 0
for: 0m
labels:
severity: warning
annotations:
summary: APC UPS AC input outage (instance {{ $labels.instance }})
description: "UPS now running on battery (since {{$value | humanizeDuration}})\n VALUE = {{ $value }}\n LABELS = {{ $labels }}" Battery voltage is lower than nominal (< 95%)
- alert: APCUPSLowBatteryVoltage
expr: (apcupsd_battery_volts / apcupsd_battery_nominal_volts) < 0.95 and apcupsd_battery_nominal_volts > 0
for: 0m
labels:
severity: warning
annotations:
summary: APC UPS low battery voltage (instance {{ $labels.instance }})
description: "Battery voltage is lower than nominal (< 95%)\n VALUE = {{ $value }}\n LABELS = {{ $labels }}" Internal temperature is high ({{$value}}°C)
- alert: APCUPSHighTemperature
expr: apcupsd_internal_temperature_celsius >= 40
for: 2m
labels:
severity: warning
annotations:
summary: APC UPS high temperature (instance {{ $labels.instance }})
description: "Internal temperature is high ({{$value}}°C)\n VALUE = {{ $value }}\n LABELS = {{ $labels }}" UPS load is > 80%
- alert: APCUPSHighLoad
expr: apcupsd_ups_load_percent > 80
for: 0m
labels:
severity: warning
annotations:
summary: APC UPS high load (instance {{ $labels.instance }})
description: "UPS load is > 80%\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"