[Check_mk (english)] Problems with local checks to apper in GUI in "All services"

Archive checkmk-en
1

Dear All,

I have installed CHECKMK (version 1.6).

I have installed the server side on a Centos 7.X virtual machine and then I have installed the agent on a WINDOWS server where I would like to monitor my web application.

I have then created a local check. Basically, I have written a small python script and put it in the folder:

C:\ProgramData\checkmk\agent\local

(copied only on the agent virtual machine)

When I run (in the folder C:\Program Files (x86)\checkmk\service):

check_mk_agent.exe test > OUTcheck_mk_agent_test

in the latest part of the file OUTcheck_mk_agent_test i can find the “print” statement (2 wim-db-count-Dw001DataMaster counts=1 CRITICAL see below) I would have expected by the python script to be written:

<<<>>>

<<<>>>
<<>>
2 wim-db-count-Dw001DataMaster counts=1 CRITICAL
<<>>
1575220580

which makes me feeling like the python script and the local check is not an issue.

However when I try to get the result of this local check displayed on GUI of CHECKMK, it doesn’t work.

I have defined the HOST (WINDOWS server on which is located the python script and the agent) by the GUI of CHECKMK and other services are running:

image.png

Can someone help me to get the local check displayed on the GUI with other services?

Do I need to use WATO configuration by selecting “Host & Service Parameters” -> “Monitoring Agents” -> “Deploy custom files with agent” ?

I have added a new RULE in “Deploy custom files with agent” but nothing changed.

Many thanks in advance.

Best Regards

Gianluca

2

Hi Gianluca,

what happens if you query your system from the monitoring server with "cmk -d "?

I think your problem is that the local system (the agent is running as this user) don’t know where a Python interpreter can be found.

As Python is not natively supported inside Windows it is better to use a small wrapper script to call Python with the script.

Best regards

Andreas

PS: new location for all CheckMK questions and requests - https://forum.checkmk.com

3

Hi Gianluca,

it looks like I expected it. The agent called locally finds the Python interpreter and the agent called with local system as user don’t know where the Python is.

Write a small wrapper for your python script and place this wrapper inside CheckMK as your local check.

Python script inside - C:\scripts\myscript.py → wrapper.cmd with content

@echo off

c:\path to python\python.exe c:\scripts\myscript.py

place this script inside your local directory from CheckMK agent.

Best regards

Andreas

···

Am Mo., 2. Dez. 2019 um 10:00 Uhr schrieb Gianluca Giovannetti gianluca.giovannetti@gmail.com:

Dear Andreas,

Many thanks for your reply.

Actually if I query my system from the monitoring server with “cmk -d ” I get the file OUT_check_mk, which you can find in attachment.

In this file the piece realted to <<>> is missed.

This is a different situation from what I get when I run (in the folder C:\Program Files (x86)\checkmk\service):

check_mk_agent.exe test > OUTcheck_mk_agent_test

You can find the file OUTcheck_mk_agent_test

in attachment.

Here the <<>> is there.

I’m going to write CheckMK questions and requests at https://forum.checkmk.com.

Many thanks in advance.

Best Regards

Gianluca

On Mon, Dec 2, 2019 at 8:56 AM Andreas Döhler andreas.doehler@gmail.com wrote:

Hi Gianluca,

what happens if you query your system from the monitoring server with “cmk -d ”?

I think your problem is that the local system (the agent is running as this user) don’t know where a Python interpreter can be found.

As Python is not natively supported inside Windows it is better to use a small wrapper script to call Python with the script.

Best regards

Andreas

PS: new location for all CheckMK questions and requests - https://forum.checkmk.com