groups:
- name: node.rules
  rules:
  - alert: NodeDiskUsage
    expr: 100 -node_filesystem_free_bytes{fstype=~"xfs|ext4"} /node_filesystem_size_bytes{fstype=~"xfs|ext4"} *100 > 80
    for: 20m
    labels:
      severity: warning
    annotations:
      summary: "Instance {{ $labels.instance }} : {{ $labels.mounpoint }} 分区使用率过高"
      description: "{{ $labels.instance }} {{ $labels.mounpoint }} 分区使用大于80% (当前值: {{ $value }})"

  - alert: NodeMemoryUsage
    expr: 100-(node_memory_MemFree_bytes+node_memory_Cached_bytes+node_memory_Buffers_bytes)  /node_memory_MemTotal_bytes*100 > 80
    for: 20m
    labels:
      severity: warning
    annotations:
      summary: "Instance {{ $labels.instance }} : 内存使用率过高"
      description: "{{ $labels.instance }} 内存使用大于80% (当前值: {{ $value }})"

  - alert: NodeCpuUsage
    expr: 100 - avg(irate(node_cpu_seconds_total{mode="idle"}[1m])) by(instance)*100 > 60
    for: 20m
    labels:
      severity: warning
    annotations:
      summary: "Instance {{ $labels.instance }} : CPU使用率过高"
      description: "{{ $labels.instance }} CPU使用大于60% (当前值: {{ $value }})"