Prometheus之redis告警rules配置

~# cat /usr/local/prometheus/rules/redis.yaml
groups:
- name: redisdown
  rules:
  - alert: RedisDown
    expr: redis_up == 0
    for: 1m
    labels:
      name: instance
      severity: Critical
    annotations:
      summary: " {{ $labels.alias }}"
      description: " 服务停止运行 "
      value: "{{ $value }}"
  - alert: Redis linked too many clients
    expr: redis_connected_clients / redis_config_maxclients * 100 > 80
    for: 1m
    labels:
      name: instance
      severity: Warning
    annotations:
      summary: " {{ $labels.alias }}"
      description: " Redis连接数超过最大连接数的80%. "
      value: "{{ $value }}"
  - alert: Redis linked
    expr: redis_connected_clients / redis_config_maxclients * 100 > 80
    for: 1m
    labels:
      name: instance
      severity: Warning
    annotations:
      summary: " {{ $labels.alias }}"
      description: " Redis连接数超过最大连接数的80%. "
      value: "{{ $value }}"