安装blackbox_exporter

# 安装blackbox_exporter

## 下载
- 官网链接： [https://prometheus.io/download/](https://prometheus.io/download/ "https://prometheus.io/download/")
- 本文使用版本：`0.19.0 / 2021-05-10`
- 下载链接：[https://github.com/prometheus/blackbox_exporter/releases/download/v0.19.0/blackbox_exporter-0.19.0.linux-amd64.tar.gz](https://github.com/prometheus/blackbox_exporter/releases/download/v0.19.0/blackbox_exporter-0.19.0.linux-amd64.tar.gz "https://github.com/prometheus/blackbox_exporter/releases/download/v0.19.0/blackbox_exporter-0.19.0.linux-amd64.tar.gz")

## systemd启动脚本
```
cat /usr/lib/systemd/system/blackbox.service

[Unit]
Description=blackbox_exporter
After=syslog.target network.target
ConditionFileIsExecutable=/usr/local/blackbox_exporter/blackbox_exporter

[Service]
StartLimitInterval=5
StartLimitBurst=10
ExecStart=/usr/local/blackbox_exporter/blackbox_exporter --config.file=/usr/local/blackbox_exporter/blackbox.yml
ExecReload=/bin/kill -HUP $MAINPID
KillMode=process
Restart=always
RestartSec=30

[Install]
WantedBy=multi-user.target
```

## 安装
```
tar xzf blackbox_exporter-0.19.0.linux-amd64.tar.gz
mv blackbox_exporter-0.19.0.linux-amd64 /usr/local/blackbox_exporter
systemctl enable blackbox
systemctl start blackbox
```