本文详细介绍了如何在Zabbix中设置自定义监控，包括开启自定义监控功能，创建脚本目录，监控进程状态，检查日志文件错误，以及监测MySQL主从状态和延迟。步骤覆盖了从编写脚本到在Zabbix服务端和客户端的测试验证。
zabbix自定义监控
开启自定义监控功能
在zabbix客户端上将zabbix_agent.conf文件中将自定义监控的功能打开
[root@localhost ~]# vi /usr/local/etc/zabbix_agentd.conf
# UnsafeUserParameters=1 //0表示此功能关闭1表示此功能打开
在两台被监控的主机上创建脚本存放目录
[root@localhost ~]# mkdir /scripts
自定义监控进程
编写判断进程是否开启的脚本
[root@localhost ~]# vi /scripts/check_process.sh
#!/bin/bash
process_status=$(ps -elf | grep -Ev "grep|$0" | grep -c $1)
if [ $process_status!=0 ];then
echo '1'
else
echo '0'
fi
给脚本加执行权限
[root@localhost ~]# chmod +x /scripts/check_process.sh
测试zabbix用户是否能使用此脚本
[root@localhost ~]# su - zabbix -s /bin/bash
su: warning: cannot change directory to /home/zabbix: No such file or directory
[zabbix@localhost root]$ /scripts/check_process.sh httpd
1
[root@localhost ~]# /scripts/check_process.sh httpd
0
在zabbix客户端端写入此条自定义监控并且在服务端测试是否可用
客户端：
[root@localhost ~]# vi /usr/local/etc/zabbix_agentd.conf
# 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 0.0.0.0:111 0.0.0.0:*
LISTEN 0 128 0.0.0.0:80 0.0.0.0:*
LISTEN 0 32 192.168.122.1:53 0.0.0.0:*
LISTEN 0 128 0.0.0.0:22 0.0.0.0:*
LISTEN 0 5 127.0.0.1:631 0.0.0.0:*
LISTEN 0 128 0.0.0.0:10050 0.0.0.0:*
LISTEN 0 80 *:3306 *:*
LISTEN 0 128 [::]:111 [::]:*
LISTEN 0 128 [::]:22 [::]:*
LISTEN 0 5 [::1]:631 [::]:*
服务端：
[root@localhost ~]# zabbix_get -s 192.168.11.137 -k check_process['httpd']
1
在zabbix页面上创建监控项
创建触发器
测试验证
[root@localhost ~]# apachectl stop
[root@localhost ~]# ss -anlt
State Recv-Q Send-Q Local Address:Port Peer Address:Port Process
LISTEN 0 128 0.0.0.0:111 0.0.0.0:*
LISTEN 0 32 192.168.122.1:53 0.0.0.0:*
LISTEN 0 128 0.0.0.0:22 0.0.0.0:*
LISTEN 0 5 127.0.0.1:631 0.0.0.0:*
LISTEN 0 128 0.0.0.0:10050 0.0.0.0:*
LISTEN 0 80 *:3306 *:*
LISTEN 0 128 [::]:111 [::]:*
LISTEN 0 128 [::]:22 [::]:*
LISTEN 0 5 [::1]:631 [::]:*
自定义监控日志文件
编写判断日志文件是否有报错
[root@localhost ~]# vi /scripts/log.py
i#!/usr/bin/python3
import sys
import re
def prePos(seekfile):
global curpos
try:
cf = open(seekfile)
except IOError:
curpos = 0
return curpos
except FileNotFoundError:
else:
try:
curpos = int(cf.readline().strip())
cf.close()
return curpos
cf.close()
return curpos
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)
给脚本加执行权限
[root@localhost ~]# chmod +x /scripts/log.py
[root@localhost ~]# ll /scripts/log.py
-rwxr-xr-x. 1 root root 3608 May 20 01:09 /scripts/log.py
测试zabbix用户是否能使用此脚本
[root@localhost ~]# dnf -y module install python38
[root@localhost ~]# setfacl -m u:zabbix:rx /var/log/httpd/
[root@localhost ~]# mkdir /zabbix_item_log
[root@localhost ~]# chown -R zabbix.zabbix /zabbix_item_log/
[zabbix@localhost root]$ python3 /scripts/log.py /var/log/httpd/error_log /zabbix_item_log/logseek Failed
0
在zabbix客户端写入此条自定义监控并且在服务端测试是否可用
客户端：
[root@localhost ~]# vi /usr/local/etc/zabbix_agentd.conf
UserParameter=check_logs[*],/scripts/log.py $1 $2 $3
[root@localhost ~]# pkill zabbix_agent
[root@localhost ~]# zabbix_agentd
[root@localhost ~]# ss -anlt
State Recv-Q Send-Q Local Address:Port Peer Address:Port Process
LISTEN 0 128 0.0.0.0:111 0.0.0.0:*
LISTEN 0 128 0.0.0.0:80 0.0.0.0:*
LISTEN 0 32 192.168.122.1:53 0.0.0.0:*
LISTEN 0 128 0.0.0.0:22 0.0.0.0:*
LISTEN 0 5 127.0.0.1:631 0.0.0.0:*
LISTEN 0 128 0.0.0.0:10050 0.0.0.0:*
LISTEN 0 80 *:3306 *:*
LISTEN 0 128 [::]:111 [::]:*
LISTEN 0 128 [::]:22 [::]:*
LISTEN 0 5 [::1]:631 [::]:*
服务端：
[root@localhost ~]# zabbix_get -s 192.168.11.137 -k check_logs['/var/log/httpd/error_log','zabbix_item_log/logseek','Failed']
0
客户端：
[root@localhost ~]# echo 'Failed' >> /var/log/httpd/error_log
服务端：
[root@localhost ~]# zabbix_get -s 192.168.11.137 -k check_logs['/var/log/httpd/error_log','zabbix_item_log/logseek','Failed']
1
客户端：
[root@localhost ~]# cat /zabbix_item_log/logseek
6985
在zabbix页面上创建监控项
创建触发器
测试验证
[root@localhost ~]# echo 'Failed' >> /var/log/httpd/error_log
mysql主从状态的监控
|192.168.11.136| zabbix服务端server，MySQL主 |
|192.168.11.137|zabbix客户端client，MySQL从|
sever：
mysql> create user 'root'@'192.168.11.137' identified by 'root' ;
Query OK, 0 rows affected (0.03 sec)
mysql> grant all on *.* to 'root'@'192.168.11.137';
Query OK, 0 rows affected (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.01 sec)
client:
[root@localhost ~]# vi /etc/my.cnf
[mysqld]
basedir = /usr/local/mysql
datadir = /opt/mysql_data
socket = /tmp/mysql.sock
port = 3306
pid-file = /opt/mysql_data/mysql.pid
user = mysql
skip-name-resolve
server-id=2
relay-log=slave_relay_bin
[client]
user=root
password=root
~
编写判断主从状态的脚本
client:
[root@localhost ~]# vi /etc/my.cnf
#!/bin/bash
status=$(mysql -e 'show slave status\G' | grep "Running: Yes" |awk '{print $2}' | grep -c 'Yes')
if [ $status == 2 ];then
echo '0'
else
echo '1'
fi
给脚本加执行权限
[root@localhost ~]# chmod +x /scripts/check_mysql_replistatus.sh
测试zabbix用户是否能使用此脚本
[root@client ~]# su - zabbix -s /bin/bash
[zabbix@client root]$ /scripts/check_mysql_replistatus.sh
0
在zabbix客户端写入此条自定义监控并且在服务端测试是否可用
client:
[root@client ~]# vim /usr/local/etc/zabbix_agentd.conf
UserParameter=check_mysql_replication,/scripts/check_mysql_replistatus.sh
[root@client ~]# pkill zabbix_agent
[root@client ~]# zabbix_agentd
zabbix:
[root@zabbix ~]# zabbix_get -s 192.168.11.137 -k check_mysql_replication
0
在zabbix页面上创建监控项
创建触发器
测试验证
client:
mysql> stop slave;
Query OK, 0 rows affected (0.00 sec)
mysql> show slave status\G;
Slave_IO_Running: No
Slave_SQL_Running: No
mysql主从延迟的监控
编写查看延迟的脚本
[root@client ~]# vim /scripts/check_mysql_replistatus.sh
#!/bin/bash
delay=$(mysql -e 'show slave status\G' | grep "Seconds_Behind_Master" |awk '{print $2}')
echo $delay
给脚本加执行权限
[root@client ~]# chmod +x /scripts/check_mysql_delay.sh
测试zabbix用户是否能使用此脚本
[root@client ~]# su - zabbix -s /bin/bash
[zabbix@client root]$ /scripts/check_mysql_delay.sh
在zabbix客户端写入此条自定义监控并且在服务端测试是否可用
client:
[root@client ~]# vim /usr/local/etc/zabbix_agentd.conf
UserParameter=check_mysql_delay,/scripts/check_mysql_delay.sh
[root@client ~]# pkill zabbix_agent
[root@client ~]# zabbix_agentd
zabbix:
[root@zabbix ~]# zabbix_get -s 192.168.247.211 -k check_mysql_delay
在zabbix页面上创建监控项
创建触发器
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