prometheus: 安装alert manager

一，下载alertmanager

https://prometheus.io/download/

2,原理图:

二，下载和安装

# wget https://github.com/prometheus/alertmanager/releases/download/v0.27.0/alertmanager-0.27.0.linux-amd64.tar.gz

2,安装

解压:

# tar -zxvf alertmanager-0.27.0.linux-amd64.tar.gz

移动到安装目录:

# mv alertmanager-0.27.0.linux-amd64 /usr/local/soft/

3，查看版本:

# /usr/local/soft/alertmanager-0.27.0.linux-amd64/alertmanager --version
alertmanager, version 0.27.0 (branch: HEAD, revision: 0aa3c2aad14cff039931923ab16b26b7481783b5)
  build user:       root@22cd11f671e9
  build date:       20240228-11:51:20
  go version:       go1.21.7
  platform:         linux/amd64
  tags:             netgo

三，配置、启动

1,配置文件:

# vi alertmanager.yml

内容:

global:
  resolve_timeout: 5m
  smtp_smarthost: 'smtp.163.com:465'
  smtp_from: '您的邮箱'
  smtp_auth_username: '您的邮箱用户名'
  smtp_auth_password: '此处替换为您邮箱的authcode'
  smtp_require_tls: false
route:
  group_by: ['alertname']
  group_wait: 30s
  group_interval: 5m
  repeat_interval: 1h
  receiver: 'web.hook'
receivers:
  - name: 'web.hook'
    email_configs:
      - to: '此处替换为您的收件邮箱'
    webhook_configs:
      - url: 'http://127.0.0.1:5001/'
inhibit_rules:
  - source_match:
      severity: 'critical'
    target_match:
      severity: 'warning'
    equal: ['alertname', 'dev', 'instance']

 测试配置是否正确:

# ./amtool check-config alertmanager.yml
Checking 'alertmanager.yml'  SUCCESS
Found:
 - global config
 - route
 - 1 inhibit rules
 - 1 receivers
 - 0 templates

2,使用systemctl管理服务:

# vi /lib/systemd/system/alertmanager.service

内容:

[Unit]
Description=Alert Manager
wants=network-online.target
After=network-online.target

[Service]
Type=simple
Restart=always
ExecStart=/usr/local/soft/alertmanager-0.27.0.linux-amd64/alertmanager --config.file=/usr/local/soft/alertmanager-0.27.0.linux-amd64/alertmanager.yml --storage.path=/usr/local/so
ft/alertmanager-0.27.0.linux-amd64/data/

[Install]
WantedBy=multi-user.target

重新加载服务

# systemctl daemon-reload

3，启动:

# systemctl start alertmanager.service

4,查看端口:可以看到启用了9093/9094两个端口

# ss -lntp | grep alert
LISTEN 0      4096                    *:9093             *:*    users:(("alertmanager",pid=474456,fd=8))
LISTEN 0      4096                    *:9094             *:*    users:(("alertmanager",pid=474456,fd=3))  

 5，服务启动后查看配置:

访问: 你的ip:9093   可以看到服务的状态
如图:

四，用postman测试发送一封邮件

说明:
地址用:ip:9093/api/v2/alerts
方法用:POST
选择Body,
然后选择raw,
输入邮件内容后，点 send
如图: