Hi Nicolas,
I tried your example and this is what happened:
- the nagios directory is created (which should lead to creating the class
'not_nagios_installed')
- the extraction of the tarball does not happen at all
Having a look at the output of the agent there's no evidence that anything
is happening concerning Nagios installation at all. Having a look at the
output of cf-execd this is what happens:
10349 * Begin new promise type category files in function
10350
10351 Subtype files syntax ok for agent
10352 Promising object name '/usr/local/nagios/.'
10353 Recorded LVAL create
10354 Recorded scalarRVAL true
10355 Recorded LVAL comment
10356 Recorded scalarRVAL Creating nagios directory
10357 Recorded LVAL classes
10358 Found function identifier if_repaired
10359 Start FnCall if_repaired args level 1
10360 Appending scalar to rval-list [not_nagios_installed]
10361 CopyRvalItem(s)
10362 End args level 1
10363 Installing Function Call if_repaired
10364 Installed if_repaired(not_nagios_installed,)
10365
10366 Finished with function call, now at level 0
10367
10368 End full promise with promisee /usr/local/nagios/.
10369
10370
10371 * Begin new promise type category commands in function
10372
10373 Subtype commands syntax ok for agent
10374 New class context 'not_nagios_installed' ::
10375
10376 Promising object name '/bin/tar xzvf
/var/cfengine/artifacts/nagios/nagios.tar.gz -C /'
10377 Recorded LVAL comment
10378 Recorded scalarRVAL Going to install Nagios now.
10379 End full promise with promisee /bin/tar xzvf
/var/cfengine/artifacts/nagios/nagios.tar.gz -C /
10380
10381 End promise bundle
I'm not quiet sure how to interpret this. Obviously the promise for 'tar'
is made, but it's not executed.
Bernd
From:
Nicolas Charles <charl...@gmail.com>
To:
bernd.adamow...@external.icw-global.com
Cc:
help-cfengine@cfengine.org
Date:
17.12.2009 13:02
Subject:
Re: Problem recognizing existence of directory
Hi,
Maybe you could use something like this :
bundle agent check_nagios_installation {
files:
"${nagios_install_dir}/"
create => "true",
comment => "Creating nagios directory",
classes => if_repaired("not_nagios_installed");
commands:
not_nagios_installed::
"/bin/tar xzvf /var/cfengine/artifacts/nagios/nagios.tar.gz
-C /",
comment => "Going to install Nagios now.";
}
body classes if_repaired(class)
{
promise_repaired => { "$(class)" };
}
bernd.adamow...@external.icw-global.com wrote:
>
> I guess I'm facing a typical beginners problem, however, I didn't find
> a solution.
>
> I'm checking the existence of a directory. If it's not there, I'm
> going to extract a tarball which creates it and some other files. This
> works very fine. However the extracting of the tarball is done
> sometimes too, even if the directory exists. I couldn't find a
> deterministic behaviour. Here's the code I'm using:
>
> bundle agent check_nagios_installation {
>
> classes:
> "nagios_installed" expression =>
> fileexists("${nagios_install_dir}/.");
>
> commands:
> !nagios_installed::
> "/bin/tar xzvf
> /var/cfengine/artifacts/nagios/nagios.tar.gz -C /",
> comment => "Going to install Nagios now.";
> }
>
> Thanks in advance!
>
> Bernd
> InterComponentWare AG:
> Vorstand: Jörg Stadler / Aufsichtsratsvors.: Prof. Dr. Christof Hettich
> Firmensitz: 69190 Walldorf, Industriestraße 41 / AG Mannheim HRB
> 351761 / USt.-IdNr.: DE 198388516
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>
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InterComponentWare AG:
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Firmensitz: 69190 Walldorf, Industriestraße 41 / AG Mannheim HRB 351761 /
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