homelab/k8s/core/prom-stack/grafana-alerting-configmap.yaml

apiVersion: v1
kind: ConfigMap
metadata:
  name: grafana-alerting
  namespace: prometheus
data:
  rules.yaml: |
    apiVersion: 1
    groups:
      - orgId: 1
        name: pasarguard_alerts
        folder: Kubernetes
        interval: 1m
        rules:
          - uid: pasarguard_cpu_throttling
            title: VPN CPU Throttle
            condition: A
            data:
              - refId: A
                relativeTimeRange:
                  from: 600
                  to: 0
                datasourceUid: P76F38748CEC837F0
                model:
                  expr: 'rate(container_cpu_cfs_throttled_periods_total{container="pasarguard-node"}[5m]) > 0.1'
                  refId: A
            noDataState: NoData
            execErrState: Alerting
            for: 5m
            annotations:
              description: 'Throttling rate: {{ printf "%.2f" $values.A.Value }}'
              summary: 'VPN node throttling CPU on {{ $labels.node }}'
            labels:
              severity: warning
  
  contactpoints.yaml: |
    apiVersion: 1
    contactPoints:
      - orgId: 1
        name: telegram
        receivers:
          - uid: telegram_default
            type: telegram
            disableResolveMessage: false
            settings:
              bottoken: $TELEGRAM_BOT_TOKEN
              chatid: "124317807"
              message: |
                {{ if eq .Status "firing" }}🔥 FIRING{{ else }}✅ RESOLVED{{ end }}
                
                {{ range .Alerts }}
                📊 <b>{{ .Labels.alertname }}</b>
                {{ if .Annotations.summary }}{{ .Annotations.summary }}{{ end }}
                
                🎯 <b>Details:</b>
                • Pod: <code>{{ .Labels.pod }}</code>
                • Node: <code>{{ .Labels.node }}</code>
                • Namespace: <code>{{ .Labels.namespace }}</code>
                {{ if .Annotations.description }}• {{ .Annotations.description }}{{ end }}
                
                🔗 <a href="{{ .GeneratorURL }}">View in Grafana</a>
                {{ end }}
              parse_mode: HTML
  
  policies.yaml: |
    apiVersion: 1
    policies:
      - orgId: 1
        receiver: telegram
        group_by:
          - grafana_folder
          - alertname
        group_wait: 10s
        group_interval: 5m
        repeat_interval: 4h