安装prometheus的exporter

部署prometheus服务的笔记https://blog.csdn.net/weixin_44014460/article/details/143220792?spm=1001.2014.3001.5501

安装node_exporter

• 环境
  192.168.24.133 centos7.6
• 下载地址
  https://prometheus.io/download/#node_exporter找一个较新的版本：
  
• 将压缩包解压到/usr/local
  tar -zxvf node_exporter-1.8.2.linux-amd64.tar.gz -C /usr/local/
  
• 创建一个node-exporter托管服务
  vi /usr/lib/systemd/system/prometheus_node_exporter.service

[Unit]
Description=prometheus_node_exporter
Documentation=https://github.com/prometheus/node_exporter
After=network.target
[Service]
Type=simple
User=root
Group=root
ExecStart=/usr/local/node_exporter-1.8.2.linux-amd64/node_exporter
Restart=on-failure
[Install]
WantedBy=multi-user.target

• 重新加载service服务配置和设置prometheus_node_exporter开机自起
  systemctl daemon-reload
  systemctl enable prometheus_node_exporter
• 启动prometheus_node_exporter服务

systemctl start prometheus_node_exporter
systemctl status prometheus_node_exporter

• 访问192.168.24.133-node_exporter的metric页面
  http://192.168.24.133:9100/metrics，这个页面就是提供给prometheus的http接口。
• 在prometheus服务器添加192.168.24.133的监控信息
  编辑prometheus服务器192.168.24.134下的/usr/local/prometheus-2.53.2.linux-amd64/prometheus.yml
  
• 重启promethus服务
  systemctl restart prometheus
• 查看prometheus看板是否将监控节点添加成功
  
  

监控mysql

• 部署mysql服务
  引用https://www.jianshu.com/p/a3700643d7a3（有部分有差异，不能完全参照）
• 下载mysqld_exporter
  https://www.prometheus.io/download/#mysqld_exporter
  
• 将mysqld_exporter解压到/usr/local目录下
  tar -zxvf mysqld_exporter-0.15.1.linux-amd64.tar.gz -C /usr/local/
  
• 配置mysqld_exporter托管服务
  vi /usr/lib/systemd/system/prometheus_mysqld_exporter.service

[Unit]
Description=prometheus_mysqld_exporter
Documentation=https://github.com/prometheus/mysqld_exporter
After=network.target
[Service]
Type=simple
User=root
Group=root
ExecStart=/usr/local/mysqld_exporter-0.15.1.linux-amd64/mysqld_exporter --config.my-cnf=/usr/local/mysqld_exporter-0.15.1.linux-amd64/.my.cnf
Restart=on-failure
[Install]
WantedBy=multi-user.target

• 重新加载service服务配置和设置prometheus_mysqld_exporter开机自起
  systemctl daemon-reload
  systemctl enable prometheus_mysqld_exporter

• 配置mysqld_expoerter登陆数据库信息
  vim /usr/local/mysqld_exporter-0.12.1.linux-amd64/.my.cnf

• 启动prometheus_mysqld_exporter服务
  systemctl start prometheus_mysqld_exporter
  systemctl status prometheus_mysqld_exporter
  

• 访问mysql的metric网页http://192.168.24.133:9104/metrics
  

• 在prometheus主配置文件中添加msyql的监控信息
  编辑prometheus服务器192.168.24.134下的/usr/local/prometheus-2.53.2.linux-amd64/prometheus.yml
  

• 重启prometheus服务

systemctl restart prometheus

• 查看prometheus监控目标
  

参考文档：
https://blog.csdn.net/weixin_50014016/article/details/139260950
https://blog.51cto.com/chier11/9736763
https://blog.csdn.net/qq_45277554/article/details/130917620
https://www.jianshu.com/p/a3700643d7a3