2023-05-08 b941a5d49b74f06cf442510844dc1771 99+ 4 分钟 0.6 k 0次访问

Prometheus监控domain域名

一、环境

主机名	IP地址	系统	说明
localhost	192.168.224.11	Centos7.6	docker安装的prometheus
server2.com	192.168.224.12	Centos7.6	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
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## 1、二进制安装（二选一）

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

mkdir /usr/local/Prometheus/domain_exporter -p

tar zxvf domain_exporter_1.20.0_linux_amd64.tar.gz -C /usr/local/Prometheus/domain_exporter

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### 创建用户

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

1 2	### 更改exporter文件夹权限

chown prometheus:prometheus -R /usr/local/Prometheus

1 2	### 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=/usr/local/Prometheus/domain_exporter/domain_exporter
Restart=on-failure

[Install]
WantedBy=multi-user.target
EOF

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### 启动

systemctl daemon-reload

systemctl start domain_exporter

1 2	### 加入到开机自启动

systemctl enable domain_exporter

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### 检查

systemctl status domain_exporter

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启动不了检查日志

journalctl -u domain_exporter -f

1 2	## 2、docker安装

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

1 2	## 3、Prometheus设置

cd /data/docker-prometheus

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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: 192.168.224.12:9222 # domain_exporter address
  static_configs:
- targets:
  - qq.com
  - baidu.cn
    EOF
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    ### 重新加载配置
    curl -X POST http://localhost:9090/-/reload
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    ### 检查
    http://192.168.224.11:9090/targets?search=

http://192.168.224.12:9222/




## 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”
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### 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: ‘‘
description: ‘域名检测失败’
alert: 域名过期
expr: domain_expiry_days < 30
for: 2h
labels:
severity: warning
annotations:
summary: ‘‘
description: ‘将在30天后过期’
alert: 域名过期
expr: domain_expiry_days < 5
for: 2h
labels:
severity: page
annotations:
summary: ‘‘
description: ‘将在5天后过期’
EOF
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### 重新加载配置
curl -X POST http://localhost:9090/-/reload
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### 检查
http://192.168.224.11:9090/alerts?search=
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## 6、Doshboard
https://grafana.com/grafana/dashboards/14605