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homelab/k8s/infra/monitoring/alerts/svc-authentik-rules.yaml
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apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
name: authentik-rules
namespace: iam
spec:
groups:
- name: authentik.rules
interval: 15s
rules:
- alert: AuthentikHighErrorRate
expr: |
(
sum(rate(authentik_http_requests_total{status=~"5.."}[5m]))
/
sum(rate(authentik_http_requests_total[5m]))
) > 0.05
for: 10m
labels:
severity: warning
annotations:
summary: "High error rate on Authentik"
description: "5xx error rate exceeded 5% of total requests for 10 minutes. Value: {{ $value | humanizePercentage }}"
- alert: AuthentikOutpostDown
expr: |
authentik_outpost_total_up == 0
for: 5m
labels:
severity: warning
annotations:
summary: "Authentik outpost is down"
description: "Outpost {{ $labels.outpost_name }} (type: {{ $labels.outpost_type }}) has been offline for 5 minutes"