prometheus之node_exporter安装

一、简介

node_exporter用来安装到被监控的主机上，暴露被监控主机的指标数据，服务器端基于http协议调用的端口9100（默认）来获取被监控服务器信息。

二、安装部署

下载地址
https://github.com/prometheus/node_exporter/releases

1、解压安装

# tar -xvf node_exporter-*.linux-amd64.tar.gz -C /usr/local/
# mv node_exporter-0.18.1.linux-amd64/ node_exporter

2、 启动node-exporter

# nohup /usr/local/node_exporter/node_exporter &

3、加入node_exporter开机自启

cat > /etc/systemd/system/node_exporter.service << "EOF"
[Unit]
Description=node_export
Documentation=https://github.com/prometheus/node_exporter
 
[Service]
ExecStart=/usr/local/node_exporter/node_exporter
Restart=on-failure
[Install]
WantedBy=multi-user.target
EOF

# systemctl daemon-reload
# systemctl enable node_exporter
# systemctl start node_exporter
# systemctl status node_exporter