安装 Alertmanager

Docker Compose 方式

1. 目录准备

mkdir -pv /apps/alertmanager/{conf,template}

2. 编辑 docker-compose.yml 文件

vim /apps/alertmanager/docker-compose.yml

version: "3"
services:
  alertmanager:
    image: prom/alertmanager:v0.24.0
    container_name: prometheus-alertmanager
    hostname: alertmanager
    restart: always
    volumes:
      - /apps/alertmanager/template:/etc/alertmanager/template
      - /apps/alertmanager/conf/alertmanager.yml:/etc/alertmanager/alertmanager.yml
    ports:
      - 9093:9093
networks:
  default:
    external:
      name: prometheus

3. 编辑 alertmanager.yml 文件

vim /apps/alertmanager/conf/alertmanager.yml

global:
  resolve_timeout: 5m

route:
  group_by: ['instance']
  group_wait: 30s
  group_interval: 30s
  repeat_interval: 1h
  receiver: 'dingtalk' 
  routes:
  - receiver: 'message'
    continue: true
    match:
      severity: emergency
  - receiver: 'dingtalk'
    continue: true
    match_re:
      severity: critical|warning

receivers: 
- name: 'dingtalk'
  webhook_configs:
  - url: 'http://127.0.0.1:9080/prometheusalert?type=dd&tpl=prometheus-dd-my&ddurl=https://oapi.dingtalk.com/robot/send?access_token=xxx'
- name: 'message'
  webhook_configs:
  - url: 'http://127.0.0.1:9080/prometheusalert?type=txdx&tpl=prometheus-dx-my&phone=xxx'

inhibit_rules:
  - source_match:
      severity: 'critical'
    target_match:
      severity: 'warning'
    equal: ['instance']

说明：

• 配置文件中 receivers 配置实际的告警发送方式，此处使用了开源组件 Prometheus Alert 具体配置请参考官方文档
• Alertmanager 官方文档：https://prometheus.io/docs/alerting/latest/alertmanager
• Prometheus Alert 官方文档：https://feiyu563.gitbook.io/prometheusalert
• Alertmanager 配置文件官方说明：https://prometheus.io/docs/alerting/latest/configuration
• Alertmanager 配置文件详解：https://www.cnblogs.com/kebibuluan/p/14928490.html

4. 创建 docker 网段 prometheus
   检查是否存在 prometheus 网段：

docker network list

若不存在，则创建：

docker network create prometheus --subnet 10.21.22.0/24

5. 启动 Alertmanager 容器

cd /apps/alertmanager

docker-compose up -d

6. 查看 Alertmanager 容器状态、查看  Alertmanager 容器日志

cd /apps/alertmanager

docker-compose ps

docker-compose logs -f

7. 编辑 Prometheus Server 的 prometheus.yml 文件
   编辑 Prometheus 的 prometheus.yml 文件，在顶层结构中添加如下内容：

alerting:
  alertmanagers:
  - static_configs:
    - targets: ['localhost:9093']

8. 重启 Prometheus Server
   重启 Prometheus Server 服务