chemavx
4facdd8515
Grafana threshold expression requires a scalar input, not a raw time series. Added explicit reduce step (type: reduce, reducer: last) as refId B between the Prometheus query (A) and the threshold check (C). All 4 rules updated: CrashLoopBackOff, Disco >80%, RAM >85%, Pod Failed. condition field changed from B → C on each rule.
207 lines
6.7 KiB
YAML
207 lines
6.7 KiB
YAML
apiVersion: v1
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kind: ConfigMap
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metadata:
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name: grafana-alerting
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namespace: monitoring
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data:
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contact-points.yaml: |
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apiVersion: 1
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contactPoints:
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- orgId: 1
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name: Telegram Homelab
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receivers:
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- uid: telegram-homelab
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type: telegram
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settings:
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bottoken: "${TELEGRAM_BOT_TOKEN}"
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chatid: "5138407666"
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parseMode: HTML
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disableResolveMessage: false
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notification-policy.yaml: |
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apiVersion: 1
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policies:
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- orgId: 1
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receiver: Telegram Homelab
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group_by:
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- alertname
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- namespace
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- pod
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group_wait: 30s
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group_interval: 5m
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repeat_interval: 4h
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routes: []
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alert-rules.yaml: |
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apiVersion: 1
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groups:
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- orgId: 1
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name: homelab-infra
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folder: Homelab Alerts
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interval: 1m
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rules:
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- uid: homelab-crashloop
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title: "Pod CrashLoopBackOff"
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condition: C
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for: 1m
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noDataState: OK
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execErrState: Error
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annotations:
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summary: "CrashLoopBackOff: {{ $labels.pod }} ({{ $labels.namespace }})"
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description: "Container {{ $labels.container }} ha entrado en CrashLoopBackOff."
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labels:
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severity: critical
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isPaused: false
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data:
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- refId: A
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relativeTimeRange: {from: 300, to: 0}
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datasourceUid: prometheus
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model:
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editorMode: code
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expr: kube_pod_container_status_waiting_reason{reason="CrashLoopBackOff"}
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instant: true
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refId: A
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- refId: B
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relativeTimeRange: {from: 0, to: 0}
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datasourceUid: "-100"
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model:
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type: reduce
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refId: B
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expression: A
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reducer: last
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settings:
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mode: ""
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- refId: C
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relativeTimeRange: {from: 0, to: 0}
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datasourceUid: "-100"
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model:
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type: threshold
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refId: C
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expression: B
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conditions:
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- evaluator: {params: [0], type: gt}
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- uid: homelab-disk-high
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title: "Disco > 80%"
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condition: C
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for: 5m
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noDataState: NoData
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execErrState: Error
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annotations:
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summary: "Disco lleno: {{ $labels.mountpoint }} en {{ $labels.instance }}"
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description: "Filesystem {{ $labels.mountpoint }} supera el 80% de uso."
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labels:
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severity: warning
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isPaused: false
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data:
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- refId: A
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relativeTimeRange: {from: 300, to: 0}
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datasourceUid: prometheus
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model:
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editorMode: code
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expr: "(node_filesystem_size_bytes{fstype!~\"tmpfs|overlay|squashfs|devtmpfs\"} - node_filesystem_avail_bytes{fstype!~\"tmpfs|overlay|squashfs|devtmpfs\"}) / node_filesystem_size_bytes{fstype!~\"tmpfs|overlay|squashfs|devtmpfs\"}"
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instant: true
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refId: A
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- refId: B
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relativeTimeRange: {from: 0, to: 0}
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datasourceUid: "-100"
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model:
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type: reduce
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refId: B
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expression: A
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reducer: last
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settings:
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mode: ""
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- refId: C
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relativeTimeRange: {from: 0, to: 0}
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datasourceUid: "-100"
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model:
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type: threshold
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refId: C
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expression: B
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conditions:
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- evaluator: {params: [0.8], type: gt}
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- uid: homelab-ram-high
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title: "RAM > 85%"
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condition: C
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for: 5m
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noDataState: NoData
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execErrState: Error
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annotations:
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summary: "RAM alta: {{ $labels.instance }}"
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description: "Uso de RAM supera el 85% en {{ $labels.instance }}."
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labels:
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severity: warning
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isPaused: false
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data:
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- refId: A
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relativeTimeRange: {from: 300, to: 0}
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datasourceUid: prometheus
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model:
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editorMode: code
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expr: "(node_memory_MemTotal_bytes - node_memory_MemAvailable_bytes) / node_memory_MemTotal_bytes"
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instant: true
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refId: A
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- refId: B
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relativeTimeRange: {from: 0, to: 0}
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datasourceUid: "-100"
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model:
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type: reduce
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refId: B
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expression: A
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reducer: last
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settings:
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mode: ""
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- refId: C
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relativeTimeRange: {from: 0, to: 0}
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datasourceUid: "-100"
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model:
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type: threshold
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refId: C
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expression: B
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conditions:
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- evaluator: {params: [0.85], type: gt}
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- uid: homelab-pod-failed
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title: "Pod Failed/Unknown"
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condition: C
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for: 3m
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noDataState: OK
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execErrState: Error
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annotations:
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summary: "Pod en estado {{ $labels.phase }}: {{ $labels.pod }} ({{ $labels.namespace }})"
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description: "Pod {{ $labels.namespace }}/{{ $labels.pod }} lleva más de 3 minutos en estado {{ $labels.phase }}."
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labels:
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severity: warning
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isPaused: false
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data:
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- refId: A
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relativeTimeRange: {from: 300, to: 0}
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datasourceUid: prometheus
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model:
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editorMode: code
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expr: "kube_pod_status_phase{phase!~\"Running|Succeeded\"}"
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instant: true
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refId: A
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- refId: B
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relativeTimeRange: {from: 0, to: 0}
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datasourceUid: "-100"
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model:
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type: reduce
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refId: B
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expression: A
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reducer: last
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settings:
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mode: ""
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- refId: C
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relativeTimeRange: {from: 0, to: 0}
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datasourceUid: "-100"
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model:
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type: threshold
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refId: C
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expression: B
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conditions:
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- evaluator: {params: [0], type: gt}
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