check_mk自定义监控插件

最新推荐文章于 2025-05-13 05:26:49 发布

dingyingguidyg

最新推荐文章于 2025-05-13 05:26:49 发布

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分类专栏：运维自动化

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本文介绍了如何为check_mk创建自定义监控插件，通过示例代码展示了配置过程，如checks的添加，用于监控特定文件计数。内容参考自官方开发文档。

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客户端：
/usr/lib/check_mk_agent/plugins/filecount
#!/bin/bash
#DIRS="/var/log /tmp"
DIRS="/var/log"
echo '<<<filecount>>>'
for dir in $DIRS
do
# ls $dir | wc --lines
count=$(ls $dir | wc --lines)
echo "$count"
done

cd /usr/lib/check_mk_agent/plugins
chmod +x filecount

服务端：
服务端执行如下命令查看是否能够从客户端获取值
[root@LY-1611-E1 checks]# check_mk -d 10.8.18.53|fgrep -A 5 filecount
<<<filecount>>>
52
<<<postgres_sessions>>>
f 115
t 0
<<<postgres_stat_database:sep(59)>>>

在服务端创建文件filecount
/usr/share/check_mk/checks/filecount
def inventory_filecount_temp(info):
inventory = []
for line in info:
disk = line[0]
inventory.append( (disk, None) )
return inventory

def check_filecount_temp(item, params, info):
for line in info:
celsius = int(line[0])
if celsius > 200:
return (2, "filecount is %d" % celsius)
#return (2, "filecount is %d" % celsius)
elif celsius > 100:
return (1, "filecount50 is %d" % celsius)
else:
return (0, "filecount is %d" % celsius)
return (3, "Disk %s not found in agent output" % item)

check_info["filecount.temp"] = {
'check_function': check_filecount_temp,
'inventory_function': inventory_filecount_temp,
'service_description': 'filecount %s',
}

检查check_mk是否可以识别新增加的check
[root@LY-1611-E1 checks]# check_mk -L|grep filecount
filecount.temp tcp no yes filecount %s

[root@LY-1611-E1 checks]# check_mk --checks=filecount.temp -I 10.8.18.53
filecount.temp 1 new checks

查看服务端从客户端获取数据结果
[root@LY-1611-E1 checks]# check_mk -nv 10.8.18.53
Check_mk version 1.2.4
PostgreSQL Daemon Sessions WARN - 109 total(!), 109 running(!)
SMART drive /dev/sda WARN - Temperature40 is 34C
filecount 52 OK - filecount is 52
filecount filecount OK - filecount is 52
OK - Agent version 1.2.4, execution time 0.2 sec|execution_time=0.190 user_time=0.280 system_time=0.010 children_user_time=0.000 children_system_time=0.000

main.mk中增加监控项

checks += [("10.8.18.53","filecount.temp","filecount",(20,25))]

此文章参考官方网站而写

http://mathias-kettner.de/checkmk_devel_agentbased.html