35 lines
1.4 KiB
YAML
35 lines
1.4 KiB
YAML
# k8s/monitoring/ingress-alerts.yaml
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# ingress-nginx's chart has no built-in PrometheusRule block, so these rules are
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# a standalone CRD instance. Applied via the prometheus release's postsync hook
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# (after the operator/CRDs are confirmed up) — see helmfile.yaml.gotmpl.
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apiVersion: monitoring.coreos.com/v1
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kind: PrometheusRule
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metadata:
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name: ingress-nginx-rules
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namespace: ingress-nginx
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spec:
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groups:
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- name: ingress-nginx.rules
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rules:
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- alert: IngressHighErrorRate
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expr: |
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sum(rate(nginx_ingress_controller_requests{status=~"5.."}[5m])) by (ingress)
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/ sum(rate(nginx_ingress_controller_requests[5m])) by (ingress) > 0.05
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for: 10m
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labels:
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severity: warning
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annotations:
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summary: "High 5xx rate on {{ $labels.ingress }}"
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description: "More than 5% of requests to {{ $labels.ingress }} have returned 5xx for 10 minutes."
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- alert: IngressHighLatencyP95
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expr: |
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histogram_quantile(0.95,
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sum(rate(nginx_ingress_controller_request_duration_seconds_bucket[5m])) by (ingress, le)
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) > 1
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for: 10m
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labels:
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severity: warning
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annotations:
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summary: "p95 latency > 1s on {{ $labels.ingress }}"
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description: "95th percentile request latency for {{ $labels.ingress }} has exceeded 1s for 10 minutes."
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