---

title: 2.14.域名过期监控
order: 18

icon: lightbulb

主机名	IP地址	系统	说明
localhost	192.168.11.61	Ubuntu 20.04	docker安装的prometheus
test	192.168.11.62	Ubuntu 20.04	domain_exporter版本1.20.0

1、环境搭建

docker安装

略

docker-compose安装

略

二、域名过期时间监控

域名的监控通过domain_exporter来完成

• domain_exporter

https://github.com/caarlos0/domain_exporter/releases

1、二进制安装（二选一）

https://prometheus.io/download/

wget https://github.com/caarlos0/domain_exporter/releases/download/v1.20.0/domain_exporter_1.20.0_linux_amd64.tar.gz

tar zxvf domain_exporter_1.20.0_linux_amd64.tar.gz

mkdir /opt/prometheus -p


mv domain_exporter_1.20.0_linux_amd64 /opt/prometheus/domain_exporter

创建用户

useradd -M -s /usr/sbin/nologin prometheus

更改exporter文件夹权限

chown prometheus:prometheus -R /opt/prometheus

创建systemd

cat <<"EOF" >/etc/systemd/system/domain_exporter.service
[Unit]
Description=domain_exporter 
After=network.target

[Service]
Type=simple
User=prometheus
Group=prometheus
ExecStart=/opt/prometheus/domain_exporter/domain_exporter 
Restart=on-failure

[Install]
WantedBy=multi-user.target
EOF

启动

systemctl daemon-reload

systemctl start domain_exporter

加入到开机自启动

systemctl enable domain_exporter

检查

systemctl status domain_exporter

启动不了检查日志

journalctl -u domain_exporter  -f

2、docker安装

docker run -d --restart=always --name domain_exporter -p 9222:9222 caarlos0/domain_exporter

3、Prometheus设置

cd /data/docker-prometheus

使用cat追加

cat >> prometheus/prometheus.yml <<"EOF"
  - job_name: domain
    #scrape_interval: 1h
    scrape_interval: 15s
    metrics_path: /probe
    relabel_configs:
      - source_labels: [__address__]
        target_label: __param_target
      - target_label: __address__
        replacement: 192.168.11.62:9222 # domain_exporter address
    static_configs:
      - targets:
        - qq.com
        - baidu.cn
EOF

重新加载配置

curl -X POST http://localhost:9090/-/reload

检查

http://192.168.11.61:9090/targets?search=

http://192.168.11.62:9222/

4、常用监控项目

domain_expiry_days     域名到期时间
domain_probe_success   域名检测状态

5、触发器

Prometheus配置

# 报警(触发器)配置
rule_files:
  - "alert.yml"  
  - "rules/*.yml"

添加domain触发器（告警规则）

cat >> prometheus/rules/domain.yml <<"EOF"
groups:
- name: domain
  rules:
  - alert: 域名检测失败
    expr: domain_probe_success == 0
    for: 2h
    labels:
      severity: warning
    annotations:
      summary: '{{ $labels.instance }}'
      description: '{{ $labels.domain }}域名检测失败'
  - alert: 域名过期
    expr: domain_expiry_days < 30
    for: 2h
    labels:
      severity: warning
    annotations:
      summary: '{{ $labels.instance }}'
      description: '{{ $labels.domain }}将在30天后过期'
  - alert: 域名过期
    expr: domain_expiry_days < 5
    for: 2h
    labels:
      severity: page
    annotations:
      summary: '{{ $labels.instance }}'
      description: '{{ $labels.domain }}将在5天后过期'
EOF

重新加载配置

curl -X POST http://localhost:9090/-/reload

检查

http://192.168.11.61:9090/alerts?search=

6、Doshboard

https://grafana.com/grafana/dashboards/14605

问题处理：

找到右边的Column Styles，在找到“域名”这列，把instance修改为domain 如下图

三、我的微信

如果安装碰到问题，可以随时加我微信，谢谢