Low Level Discovery to add file size monitors

[DomWilko]

Hi,

Is there any way to set up a discovery rule to add an item that monitors a file size, within a specific folder?

I have already tested the file size monitor item (using vfs.file.size)and it is working like a charm. The trouble is, I have about 100 files that I need to monitor and it is a bit of a pain adding them all individually. The other thing is that we are adding a couple of new files a week and it would be good if they were automatically found and monitored.

I tried using vfs.file.size[*], vfs.file.discovery[*] (* being the folder path), but I am getting a not supported status.

I am guessing it will come down to a custom LLD rule? If so, I may need some help with that...

Does anyone have some examples I could use? I am new to both Zabbix and JSON.

Any help is appreciated.

Useful stuff:
Server: Zabbix 2.0.10
OS: Ubuntu 12.04
Files are in a folder on a Windows 2008 R2 Datacenter machine.

[steveboyson]

You definitely have to write a custom LLD script for that.

[DomWilko]

Thanks for the confirmation.

It was my initial guess so I have already written a Powershell script to output a list of the filenames in JSON format.

Once I get it the whole thing working, I will post my scripts here for others to use.

[DomWilko]

In case anyone else needs this:

Powershell script to run on the monitored server (called FileSize.ps1):

WRITE-HOST "{"
WRITE-HOST "`"data`":["
Get-ChildItem <PathTofolder> |
	ForEach-Object {
		$n = $_ -replace('\\','/')
		WRITE-HOST  "`{ `"`{`#FILENAME`}`":`"$n`",`},"} 
WRITE-HOST "]"
WRITE-HOST "}"

User Parameter within zabbix_agentd.conf:

UserParameter=file.discovery,powershell -File "C:\Program Files\Zabbix Agent\FileSize.ps1"

Zabbix Discovery Rule Setup:
Key: file.discovery
Filter Macro: {#FILENAME}

Item Prototype:
Name: {#FILENAME}
Key: vfs.file.size[{~FILENAME}]

[abevern]

This is GOLD! Thanks for posting this.

[tchjts1]

DomWilko - How has this been working for you?
I may have to implement something similar for a directory which contains about a dozen rotational logs.

Regards -
Jeff