Prometheus alertmanager 只发送邮件

Question

我有 prometheus alertmanager 和简单的规则

prometheus.yml

• job_name：“Host_PRO” 静态配置：

  • 目标：[“192.168.0.17:9100”] 标签： 组：“警报”

• job_name：“Host_PRE” 静态配置：

  • 目标：["10.2.2.235:9100"] 标签： 组：'noalert' 名称：'PVE'

alertmanager.yml

global:
  # The smarthost and SMTP sender used for mail notifications.
  smtp_smarthost: 'example:587'
  smtp_from: 'example'
  smtp_auth_username: 'example'
  smtp_auth_password: 'example'
  smtp_require_tls: true
route:
  group_by: ['alertname']
  group_wait: 10s
  group_interval: 10s
  repeat_interval: 24h
  routes:
    - match:
        group: alert 
      receiver: mail
receivers:
- name: 'mail'
  email_configs:
  - to: 'example@gmail.com'

示例规则

- alert: NodeCPU_0_High
  expr: 100 - (avg by(instance, cpu) (irate(node_cpu_seconds_total{mode="idle", cpu="0"}[1m])) * 100) > 80
  for: 2m
  labels:
    severity: critical
    app_type: linux
    category: cpu
  annotations:
    summary: "Node CPU_0 usage is HIGH"
    description: "CPU_0 load for instance {{ $labels.instance }} has reached {{ $value }}%"

如何仅当组“警报”的主机为高时发送电子邮件？

Answer 1

在 alertmanager.yml 文件中设置如下：

route:

  ...

  routes:
    - receiver: none
      matchers:
      - group != alert

    - receiver: mail
      matchers:
      - group = alert 

receivers:
  - name: none

  - name: 'mail'
    email_configs:
      - to: 'example@gmail.com'