mirror of
https://github.com/samber/awesome-prometheus-alerts.git
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72 lines
3.4 KiB
YAML
72 lines
3.4 KiB
YAML
groups:
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- name: SystemdExporter
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rules:
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- alert: SystemdUnitFailed
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expr: 'systemd_unit_state{state="failed"} == 1'
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for: 5m
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labels:
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severity: warning
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annotations:
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summary: Systemd unit failed (instance {{ $labels.instance }})
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description: "Systemd unit {{ $labels.name }} has entered failed state. (instance {{ $labels.instance }})\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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# Many units are legitimately inactive. You must adjust the name=~ filter to match your critical services.
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- alert: SystemdUnitInactive
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expr: 'systemd_unit_state{state="inactive", type="service", name=~"your-critical-service.+"} == 1'
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for: 5m
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labels:
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severity: warning
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annotations:
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summary: Systemd unit inactive (instance {{ $labels.instance }})
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description: "Systemd unit {{ $labels.name }} is inactive. (instance {{ $labels.instance }})\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: SystemdServiceCrashLooping
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expr: 'increase(systemd_service_restart_total[1h]) > 5'
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for: 5m
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labels:
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severity: critical
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annotations:
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summary: Systemd service crash looping (instance {{ $labels.instance }})
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description: "Systemd service {{ $labels.name }} has restarted {{ $value }} times in the last hour. (instance {{ $labels.instance }})\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: SystemdUnitTasksNearLimit
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expr: 'systemd_unit_tasks_current / ignoring(type) systemd_unit_tasks_max > 0.9 and systemd_unit_tasks_max > 0'
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for: 5m
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labels:
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severity: warning
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annotations:
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summary: Systemd unit tasks near limit (instance {{ $labels.instance }})
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description: "Systemd unit {{ $labels.name }} is using {{ $value | humanizePercentage }} of its task limit. (instance {{ $labels.instance }})\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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- alert: SystemdSocketRefusedConnections
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expr: 'increase(systemd_socket_refused_connections_total[5m]) > 0'
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for: 2m
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labels:
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severity: warning
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annotations:
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summary: Systemd socket refused connections (instance {{ $labels.instance }})
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description: "Systemd socket {{ $labels.name }} is refusing connections. (instance {{ $labels.instance }})\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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# Threshold of 100 connections is arbitrary. Adjust to your workload.
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- alert: SystemdSocketHighConnections
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expr: 'systemd_socket_current_connections > 100'
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for: 2m
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labels:
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severity: warning
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annotations:
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summary: Systemd socket high connections (instance {{ $labels.instance }})
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description: "Systemd socket {{ $labels.name }} has {{ $value }} active connections. (instance {{ $labels.instance }})\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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# Triggers if timer hasn't fired in 24 hours. Adjust threshold per timer schedule.
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- alert: SystemdTimerMissedTrigger
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expr: '(time() - systemd_timer_last_trigger_seconds) / 3600 > 24 and systemd_timer_last_trigger_seconds > 0'
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for: 5m
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labels:
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severity: warning
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annotations:
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summary: Systemd timer missed trigger (instance {{ $labels.instance }})
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description: "Systemd timer {{ $labels.name }} has not triggered for over 24 hours. (instance {{ $labels.instance }})\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
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