如何在稳定/普罗米修斯图表中设置prometheus规则.yaml？

serverFiles:
  alerts:
    groups:
    - name: NodeAlerts
      rules:
      - alert: NodeCPUUsage
        expr: (100 - (avg(irate(node_cpu{mode="idle"}[5m])) BY (instance) * 100)) > 75
        for: 2m
        labels:
          severity: alert
        annotations:
          description: '{{$labels.instance}}: CPU usage is above 75% (current value is:
            {{ $value }})'
          summary: '{{$labels.instance}}: High CPU usage detect

规则适用于记录规则,警报适用于警报规则.

https://prometheus.io/docs/practices/rules/