zabbix自动发现mysql端口并监控

一、需求：因为我们是游戏业务，要用到mysql，一个服务器上面跑多个mysql实例也是很正常如果单独手动一台台修改agent.conf，添加web监控，太费时费力所以就想的要用zabbix 的自动发现来监控。

二、配置Agent1.编写自动发现端口脚本[root@tiejiang ~]# cat /etc/zabbix/alertscripts/zabbix_discovery_mysql.sh #!/bin/bash mysql() { port=($(sudo netstat -tpln | awk -F “[ :]+” /[m]ysql/ | awk -F: {print $4})) printf {\n printf \t”data”:[\n for key in ${!port[@]} do if [[ “${#port[@]}” -gt 1 && “${key}” -ne “$((${#port[@]}-1))” ]];then socket=`ps aux|grep ${port[${key}]}|grep -v grep|awk -F = {print $10}|cut -d -f 1` printf \t {\n printf “\t\t\t\”{#MYSQLPORT}\”:\”${port[${key}]}\”},\n” else [[ “${key}” -eq “((${#port[@]}-1))” ]] socket=`ps aux|grep ${port[${key}]}|grep -v grep|awk -F = {print $10}|cut -d -f 1` printf \t {\n printf “\t\t\t\”{#MYSQLPORT}\”:\”${port[${key}]}\”}\n” fi done printf \t ]\n printf }\n } $1

2.赋权赋执行权限 chmod 755 /etc/zabbix/alertscripts/zabbix_discovery_mysql.sh 修改属组 chown zabbix.zabbix /etc/zabbix/alertscripts/zabbix_discovery_mysql.sh

3.测试脚本效果[root@tiejiang ~]# /etc/zabbix/alertscripts/zabbix_discovery_mysql.sh mysql { “data”:[ { “{#MYSQLPORT}”:”3306″} ] }

4.配置agent.conf[root@tiejiang ~]# cat /etc/zabbix/zabbix_agentd.conf | grep Include ### Option: Include # Include= # Include=/usr/local/etc/zabbix_agentd.userparams.conf # Include=/usr/local/etc/zabbix_agentd.conf.d/ Include=/etc/zabbix/zabbix_agentd.conf.d/*.conf

[root@tiejiang zabbix_agentd.conf.d]# cat check_mysql.conf UserParameter=mysql.discovery[*],/etc/zabbix/alertscripts/zabbix_discovery_mysql.sh $1 UserParameter=mysql_stats[*],/usr/bin/mysql –defaults-file=/home/zabbix/.my.cnf -P $1 -e “show global status”|grep “\”|cut -f2

5.sudo权限#Defaults requiretty Defaults:zabbix !requiretty zabbix ALL=(root) NOPASSWD:/bin/netstat,/usr/bin/mysql

6.创建zabbix查询mysql用户GRANT PROCESS ON *.* TO zabbix@localhost identified BY zabbix; Flush privileges; 注意：Warning: Using a password on the command line interface can be insecure.

因为mysql5.6不能使用明文密码登录，所以这里要创建一个文件用来指定用户名密码7.创建mysql.cnf文件[root@tiejiang zabbix]# cat /home/zabbix/.my.cnf [client] user=zabbix password=zabbix host=localhost

chown zabbix.zabbix /home/zabbix/.my.cnf chmod 600 /home/zabbix/.my.cnf 8.重启agent服务service zabbix_agentd restart

9、测试[root@tiejiang alertscripts]# /usr/local/zabbix/bin/zabbix_get -s 127.0.0.1 -k mysql_stats[3306,Uptime] 3862 [root@tiejiang alertscripts]# /usr/local/zabbix/bin/zabbix_get -s 127.0.0.1 -k mysql.discovery[mysql] { “data”:[ { “{#MYSQLPORT}”:”3306″} ] }

三、配置web1.添加模板