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How to configure a check command with a comma "," inside the command? How to manage this character?

  • 5 April 2024
  • 9 replies
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FTP plugin apps::protocols::ftp::plugin
FTP command GET or PUT
File myfile.pdf

The command below work as excepted:
/usr/lib/centreon-plugins/src/centreon_plugins.pl --plugin apps::protocols::ftp::plugin --hostname ftp.mysite.com --username usertest --password passwordtest --mode commands --ftp-command get,myfile.pdf

When you configure it in the GUI, we got some plugin error like CRITICAL: Command 'get' issue: [Net::FTP] Timeout
This is because of the comma in the command (get,myfile.pdf)

I've tryed some escape method, enabled shell and many tricks but without lucky.

Anyone have experimented the same behaviour and what's the solution?
Thanks a lot

Best regards
stefano

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Best answer by selkostali 9 April 2024, 14:01

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Check command
Service template
Status

vi /etc/centreon-engine/commands.cfg

define command {
    command_name                   Application_FTP_GET
    command_line                   $GITPLUGINS$/centreon_plugins.pl --plugin apps::protocols::ftp::plugin --hostname $HOSTNAME$ --username $ARG1$ --password $ARG2$ --mode commands --ftp-command $ARG3$,$ARG4$
}

 

vi /etc/centreon-engine/services.cfg

define service {
    host_name                     my.site.com
    service_description            Application FTP GET
    check_command                  Application_FTP_GET!usertest!passwordtest!get!myfile.pdf
    register                       1
    use                            Application FTP GET
    _SERVICE_ID                    567
}
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Hello, 

I have created a service using your configuration elements. 
I encountered a problem of rights when the script was run as centreon-engine, I received the following error message: 

/usr/lib/centreon-plugins/src/centreon_plugins.pl --plugin apps::protocols::ftp::plugin --hostname 172.16.5.13 --username testuser --password testuser --mode commands --ftp-command get,myfile.pdf
Cannot open Local file myfile.pdf: Permission denied
 at /usr/lib/centreon-plugins/src/apps/protocols/ftp/lib/ftp.pm line 42.
CRITICAL: Command 'get' issue: No transfer to ABOR.

 

This problem could be solved by specifying a destination path for which the centreon-engine user had write rights.


I added this destination path as an argument and the script returned the expected result : 

 

Expected result

 

Below are the various configuration elements: 

Check Command

 

Service template

commands.cfg :

define command {
    command_name                   Application_FTP_GET
    command_line                   $GITPLUGINS$/centreon_plugins.pl --plugin apps::protocols::ftp::plugin --hostname $HOSTNAME$ --username $ARG1$ --password $ARG2$ --mode commands --ftp-command "$ARG3$,$ARG4$,$ARG5$"
}

services.cfg : 

define service {
    host_name                      172.16.5.13
    service_description            App-FTP-GET-custom
    register                       1
    use                            App-FTP-GET-custom
    _SERVICE_ID                    363
}


However I think that your timeout error is not related to the comma but could rather come from a problem with name resolution or network communication. 

Could you provide the screenshot (or paste it as text) of the full command :

Monitoring Command

 

 

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Hi,

Thanks for taking over my issue!

Hostname, username, password and file are examples. You can’t download the file directly.

The command line work, the problem is only present in the GUI when you configure check command, because of the “comma” in the line. “--ftp-command get,myfile.pdf”

Thanks

Ciao

stefano

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Hello, 

 

Please show me the result in CLI executed with centreon-engine like : 

[centreon-engine@central ~]$ /usr/lib/centreon-plugins/src/centreon_plugins.pl --plugin apps::protocols::ftp::plugin --hostname 172.16.5.13 --username testuser --password testuser --mode commands --ftp-command "get,myfile.pdf,/var/lib/centreon-engine/myfile.pdf"
OK: Response time 0.211  | 'time'=0.211;;;;


And like previously asked, the command displayed on the GUI. (to see if the command is correctly interpreted)

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Hi,

I get exactly the same result with CLI. As writer before the CLI work

OK: Response time 0.211  | 'time'=0.211;;;;

 

All that displayed on the GUI are on the screenshots from the first post, do you need other informations?

 

This is the result

 

I’ve also tried to specify destination and we got the same issue. This is not permissions nor network related issue. In the production server we use real hostname of the FTP server.

I’m pretty sure that the comma is the problem. Maybe do you know how we can “escape” it?

Again thank you very much, your help is much appreciated

Ciao

stefano

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@stefanotoro When I talk about the command statement, I’m talking about the command that is going to be executed by centreon-engine, you can find in the right pannel :

Interpreted command

 

When you copy/paste this command in “centreon-engine” shell, is this the same command that the one that is working ? 

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Hi,

Yes, it’s exactly the same.

 

Thanks

Ciao

stefano

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@selkostali

Hi, you’re right, it’s a permission issue.

I send the file to /tmp and now it work.

This is definitely not a “comma” issue.

Thank you very much for your time and your precious testing

Ciao

stefano

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Hello @stefanotoro ! 

Glad to hear it! (Don't hesitate to mark the post as "solved") 

Have a good day! 🙂

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