groups:
- name: tcp_port_down_rules
  rules:
  - alert: NIS Service Down
    expr: probe_success{port="111"} == 0
    for: 10s
    labels:
      severity: critical
      port: "111"
    annotations:
      summary: "主机 {{$labels.instance}} RPC 111端口不可达"
      description: "111(rpcbind/NIS)端口断开，NIS/NFS依赖异常，实例：{{$labels.instance}}，端口：111"

  - alert: NFS Service Down
    expr: probe_success{port="2049"} == 0
    for: 10s
    labels:
      severity: critical
      port: "2049"
    annotations:
      summary: "主机 {{$labels.instance}} NFS 2049端口不可达"
      description: "2049(NFS服务)端口断开，NFS挂载访问失败，实例：{{$labels.instance}}，端口：2049"
  - alert: 389 Port Down
    expr: probe_success{port="389"} == 0
    for: 10s
    labels:
      severity: critical
      port: "389"
    annotations:
      summary: "主机 {{$labels.instance}} 认证 389端口不可达"