prometheus之mysqld_exporter部署

mysql_exporter部署

下载解压压缩包

mkdir /opt/mysqld_exporter/
cd /opt/mysqld_exporter/
# 修改为自己的软件下载地址
wget http://soft.download/soft/linux/prometheus/mysqld_exporter/mysqld_exporter-0.14.0.linux-amd64.tar.gz
tar -zxvf  mysqld_exporter-0.14.0.linux-amd64.tar.gz

添加mysqld_exporter配置文件

[root@shuan-node0132 mysqld_exporter-0.14.0.linux-amd64]# cat .my.cnf
[client]
host = localhost
user = reporter #mysql账号
password = 123456yuyuyut #mysql密码
port = 3308 #mysql端口

mysql授权监控账号exporter

CREATE USER 'reporter'@'localhost' IDENTIFIED BY '123456yuyuyut' WITH MAX_USER_CONNECTIONS 3;
GRANT PROCESS, REPLICATION CLIENT, SELECT ON *.* TO 'reporter'@'localhost';

编写service服务文件

vim /etc/systemd/system/mysqld_exporter.service

[Service]
ExecStart=/opt/mysqld_exporter/mysqld_exporter-0.14.0.linux-amd64/mysqld_exporter --config.my-cnf /opt/mysqld_exporter/mysqld_exporter-0.14.0.linux-amd64/.my.cnf
[Install]
WantedBy=multi-user.target
[Unit]
Description=mysqld_exporter
After=network.target

启动服务并设置开机自启

systemctl start mysqld_exporter
systemctl enable mysqld_exporter

防火墙开放端口

firewall-cmd --permanent --add-port=9104/tcp --zone=public&&firewall-cmd --reload

安装脚本

cat install_mysqld_exporter.sh

#!/bin/bash
InstallDir='/opt/mysqld_exporter/'
FileName='mysqld_exporter-0.14.0.linux-amd64.tar.gz'

function RedFont(){
  echo -e "\033[31mError: $1 \033[0m"
}

function GreenFont(){
  echo -e "\033[32mSuccess: $1 \033[0m"
}

function YellowFont(){
  echo -e "\033[33mWarning: $1 \033[0m"
}

if [ ! -d "$InstallDir" ];then
    mkdir $InstallDir
else
    YellowFont "${InstallDir}文件夹已经存在,请删除后重新执行"
    exit
fi

#进入安装目录
cd $InstallDir

#下载安装包
wget http://soft.download/soft/linux/prometheus/mysqld_exporter/$FileName > /dev/null 2>&1

if [ $? -eq 0 ];then
   GreenFont "$FileName download success"
else
   RedFont "$FileName download faild"
   exit
fi

#解压安装包到指定目录，解压不包含压缩一级目录
tar -zxf $FileName --strip-components 1 -C $InstallDir > /dev/null 2>&1

if [ $? -eq 0 ];then
   GreenFont "$FileName decompress success"
else
   RedFont "$FileName decompress faild"
   exit
fi

#创建配置文件
cat > ${InstallDir}.my.cnf << EOF
[client]
host = localhost
user = reporter #mysql账号
password = 123456yuyuyut #mysql密码
port = 3308 #mysql端口
EOF

#设置开机自启
cat > /etc/systemd/system/mysqld_exporter.service << EOF
[Service]
ExecStart=${InstallDir}mysqld_exporter --config.my-cnf ${InstallDir}.my.cnf
[Install]
WantedBy=multi-user.target
[Unit]
Description=mysqld_exporter
After=network.target
EOF

#防火墙放行端口
firewall-cmd --permanent --add-port=9104/tcp --zone=public&&firewall-cmd --reload

#启动服务
systemctl  daemon-reload
systemctl enable mysqld_exporter
systemctl start mysqld_exporter && GreenFont "started mysqld_exporter" || RedFont "start mysqld_exporter faild"