kube-prometheus-prometheusRule.yaml

apiVersion: monitoring.coreos.com/v1
kind: PrometheusRule
metadata:
  labels:
    app.kubernetes.io/component: exporter
    app.kubernetes.io/name: kube-prometheus
    app.kubernetes.io/part-of: kube-prometheus
    prometheus: k8s
    role: alert-rules
  name: kube-prometheus-rules
  namespace: monitoring
spec:
  groups:
  - name: general.rules
    rules:
    - alert: TargetDown
      annotations:
        message: '{{ printf "%.4g" $value }}% of the {{ $labels.job }}/{{ $labels.service }} targets in {{ $labels.namespace }} namespace are down.'
      expr: 100 * (count(up == 0) BY (job, namespace, service) / count(up) BY (job, namespace, service)) > 10
      for: 10m
      labels:
        severity: warning
    - alert: Watchdog
      annotations:
        message: |
          This is an alert meant to ensure that the entire alerting pipeline is functional.
          This alert is always firing, therefore it should always be firing in Alertmanager
          and always fire against a receiver. There are integrations with various notification
          mechanisms that send a notification when this alert is not firing. For example the
          "DeadMansSnitch" integration in PagerDuty.
      expr: vector(1)
      labels:
        severity: none
  - name: node-network
    rules:
    - alert: NodeNetworkInterfaceFlapping
      annotations:
        message: Network interface "{{ $labels.device }}" changing it's up status often on node-exporter {{ $labels.namespace }}/{{ $labels.pod }}"
      expr: |
        changes(node_network_up{job="node-exporter",device!~"veth.+"}[2m]) > 2
      for: 2m
      labels:
        severity: warning
  - name: kube-prometheus-node-recording.rules
    rules:
    - expr: sum(rate(node_cpu_seconds_total{mode!="idle",mode!="iowait",mode!="steal"}[3m])) BY (instance)
      record: instance:node_cpu:rate:sum
    - expr: sum(rate(node_network_receive_bytes_total[3m])) BY (instance)
      record: instance:node_network_receive_bytes:rate:sum
    - expr: sum(rate(node_network_transmit_bytes_total[3m])) BY (instance)
      record: instance:node_network_transmit_bytes:rate:sum
    - expr: sum(rate(node_cpu_seconds_total{mode!="idle",mode!="iowait",mode!="steal"}[5m])) WITHOUT (cpu, mode) / ON(instance) GROUP_LEFT() count(sum(node_cpu_seconds_total) BY (instance, cpu)) BY (instance)
      record: instance:node_cpu:ratio
    - expr: sum(rate(node_cpu_seconds_total{mode!="idle",mode!="iowait",mode!="steal"}[5m]))
      record: cluster:node_cpu:sum_rate5m
    - expr: cluster:node_cpu_seconds_total:rate5m / count(sum(node_cpu_seconds_total) BY (instance, cpu))
      record: cluster:node_cpu:ratio
  - name: kube-prometheus-general.rules
    rules:
    - expr: count without(instance, pod, node) (up == 1)
      record: count:up1
    - expr: count without(instance, pod, node) (up == 0)
      record: count:up0