prometheus监控之Domain域名过期监控

[https://prometheus.io/download/](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，并给文件夹授权
useradd \-M -s /usr/sbin/nologin prometheus
chown prometheus:prometheus -R /opt/prometheus #创建systemd服务
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
systemctl enable domain\_exporter

#### 2.2 docker安装方式

docker run -d --restart=always --name domain\_exporter -p 9222:9222 caarlos0/domain\_exporter

### 3.Prometheus设置

cd /data/docker-prometheus
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: 192.168.10.100:9222 # 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://192.168.10.100:9222/
http://192.168.10.14:9090/targets?search=

#### 3.1 常用监控项目

domain\_expiry\_days 域名到期时间
domain\_probe\_success 域名检测状态

### 4.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://192.168.10.14:9090/rules

http://192.168.10.14:9090/alerts?search=

### 4.grafana dashboard图形展示

[https://grafana.com/grafana/dashboards/14605](https://grafana.com/grafana/dashboards/14605)

id14605显示域名不正确，需要修改

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

![](/media/202408/2024-08-05_122129_1088720.22069436922613417.png)

https://grafana.com/grafana/dashboards/13924-9116-domain/

![](/media/202408/2024-08-05_122128_6389320.8895677552465147.png)