zabbix自定义监控
目录
自定义监控进程
配置监控脚本
首先我们可以在被监控端，开启httpd服务，以便监控
//在被监控端
//先修改配置文件
[root@localhost ~]# vim /usr/local/etc/zabbix_agentd.conf
UnsafeUserParameters=1
UserParameter=check_process[*],/bin/bash /scripts/check_process.sh $1
[root@localhost ~]# pkill zabbix
[root@localhost ~]# zabbix_agentd
[root@localhost ~]# ss -anlt
State Recv-Q Send-Q Local Address:Port Peer Address:Port Process
LISTEN 0 128 0.0.0.0:22 0.0.0.0:*
LISTEN 0 100 127.0.0.1:25 0.0.0.0:*
LISTEN 0 128 0.0.0.0:10050 0.0.0.0:*
LISTEN 0 128 [::]:22 [::]:*
LISTEN 0 100 [::1]:25 [::]:*
LISTEN 0 128 *:80 *:*
//编写脚本
[root@localhost ~]# mkdir /scripts
[root@localhost ~]# vim /scripts/check_process.sh
#!/bin/bash
count=`ps -ef| grep $1 |grep -Ev "grep|$0" |wc -l`
if [ $count == 0 ];then
echo "1"
else
echo "0"
fi
[root@localhost ~]# chmod +x /scripts/check_process.sh
[root@localhost ~]# ll /scripts/check_process.sh
-rwxr-xr-x. 1 root root 132 Sep 7 00:51 /scripts/check_process.sh
//去服务端检查key是否可用
[root@localhost ~]# zabbix_get -s 192.168.26.142 -k check_process[httpd]
0
[root@localhost ~]# zabbix_get -s 192.168.26.142 -k check_process[mysql]
1
添加监控项
查看监控的数据
添加触发器
手动关闭httpd服务，触发报警
[root@localhost ~]# systemctl stop httpd
自定义监控日志
//编写脚本
[root@localhost ~]# cd /scripts/
[root@localhost scripts]# vim log.py
#!/usr/bin/env python3
import sys
import re
def prePos(seekfile):
global curpos
try:
cf = open(seekfile)
except IOError:
curpos = 0
return curpos
except FileNotFoundError:
curpos = 0
return curpos
else:
try:
curpos = int(cf.readline().strip())
except ValueError:
curpos = 0
cf.close()
return curpos
cf.close()
return curpos
def lastPos(filename):
with open(filename) as lfile:
if lfile.readline():
lfile.seek(0,2)
else:
return 0
lastPos = lfile.tell()
return lastPos
def getSeekFile():
try:
seekfile = sys.argv[2]
except IndexError:
seekfile = '/tmp/logseek'
return seekfile
def getKey():
try:
tagKey = str(sys.argv[3])
except IndexError:
tagKey = 'Error'
return tagKey
def getResult(filename,seekfile,tagkey):
destPos = prePos(seekfile)
curPos = lastPos(filename)
if curPos < destPos:
curpos = 0
try:
f = open(filename)
except IOError:
print('Could not open file: %s' % filename)
except FileNotFoundError:
print('Could not open file: %s' % filename)
else:
f.seek(destPos)
while curPos != 0 and f.tell() < curPos:
rresult = f.readline().strip()
global result
if re.search(tagkey, rresult):
result = 1
break
else:
result = 0
with open(seekfile,'w') as sf:
sf.write(str(curPos))
finally:
f.close()
return result
if __name__ == "__main__":
result = 0
curpos = 0
tagkey = getKey()
seekfile = getSeekFile()
result = getResult(sys.argv[1],seekfile,tagkey)
print(result)
//由于是python脚本,还需按照python环境
[root@localhost ~]# dnf -y install python36
[root@localhost ~]# chmod +x /scripts/log.py
用httpd的错误日志来监控
//修改配置文件
[root@localhost ~]# vim /usr/local/etc/zabbix_agentd.conf
UserParameter=check_logs[*],/scripts/log.py $1 $2 $3
[root@localhost ~]# pkill zabbix_agentd
[root@localhost ~]# zabbix_agentd
//给/var/log/httpd目录没有执行权限，我们需要给他添加权限
[root@localhost ~]# ll -d /var/log/httpd/
drwx------. 2 root root 41 Sep 7 01:19 /var/log/httpd/
[root@localhost ~]# chmod 755 /var/log/httpd/
[root@localhost ~]# ll -d /var/log/httpd/
drwxr-xr-x. 2 root root 41 Sep 7 01:19 /var/log/httpd/
[root@localhost ~]# ll /var/log/httpd/
total 8
-rw-r--r--. 1 root root 0 Sep 7 01:19 access_log
-rw-r--r--. 1 root root 4552 Sep 7 01:50 error_log
//给httpd的error日志，添加一个错误信息
[root@localhost ~]# echo "Error123456" >> /var/log/httpd/error_log
//去服务端检测key是否可用
[root@localhost ~]# zabbix_get -s 192.168.26.142 -k check_logs[/var/log/httpd/error_log]
1
添加监控项
添加触发器
手动添加错误日志，触发报警
[root@localhost ~]# echo "Error123" >> /var/log/httpd/error_log
自定义监控MySQL主从状态
首先得配置myslq主从，详情请看mysql主从配置
然后在从库上，安装zabbix_agentd
主从同步完成
[root@localhost ~]# mysql -uroot -p123456 -e " show slave status\G"
mysql: [Warning] Using a password on the command line interface can be insecure.
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.26.138
Master_User: repl
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000001
Read_Master_Log_Pos: 154
Relay_Log_File: mysql-relay-bin.000002
Relay_Log_Pos: 320
Relay_Master_Log_File: mysql-bin.000001
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
我们需要的就是监控IO和SQL线程
配置监控脚本
//在被监控端，也就是从库，首先修改配置文件
[root@localhost ~]# vim /usr/local/etc/zabbix_agentd.conf
UserParameter=check_mysql_status,/bin/bash /scripts/mysql_status.sh
//重启服务生效配置
[root@localhost ~]# pkill zabbix_agentd
[root@localhost ~]# zabbix_agentd
//编写脚本
[root@localhost ~]# cd /scripts/
[root@localhost scripts]# vim mysql_status.sh
#!/bin/bash
yes=`mysql -uroot -p123456 -e " show slave status\G" 2> /dev/null |grep "Running:"|grep -c "Yes"`
if [ $yes == 2 ]; then
echo "0"
else
echo "1"
fi
[root@localhost scripts]# chmod +x /scripts/mysql_status.sh
//去服务端检查key是否可用
[root@localhost ~]# zabbix_get -s 192.168.26.142 -k check_mysql_status
0
添加监控项
添加触发器
手动触发报警
[root@localhost ~]# mysql -uroot -p123456 -e "stop slave;"
mysql: [Warning] Using a password on the command line interface can be insecure.
自定义监控MySQL延迟
配置监控脚本
监控延迟，我们需要关注 Seconds_Behind_Master这一项
//在被监控端，也就是从库，首先修改配置文件
[root@localhost ~]# vim /usr/local/etc/zabbix_agentd.conf
UserParameter=check_mysqlyc,/bin/bash /scripts/mysqlyc.sh //添加这一行
//重启服务生效配置
[root@localhost ~]# pkill zabbix_agentd
[root@localhost ~]# zabbix_agentd
//编写脚本
[root@localhost ~]# cd /scripts/
[root@localhost scripts]# vim mysqlyc.sh
#!/bin/bash
yc=`mysql -uroot -p123456 -e "show slave status\G" 2> /dev/null |awk '/Seconds_Behind_Master/ {print $2}' `
echo $yc
[root@localhost scripts]# chmod +x /scripts/mysqlyc.sh
//去服务端检查key是否可用
[root@localhost ~]# zabbix_get -s 192.168.26.142 -k check_mysqlyc
0
添加监控项
添加触发器
报警触发
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