On Mar 15, 2012, at 8:54 AM, jcbollinger wrote:
>
>
> On Mar 14, 4:40 pm, Peter Bukowinski <pmb...@gmail.com> wrote:
>> On Mar 14, 2012, at 5:20 PM, Peter Bukowinski wrote:
>>> On Mar 14, 2012, at 5:00 PM, Eugene Vilensky wrote:
>>
>>>> If the "creates" property of a Exec points to a symlink, what is the
>>>> effect if the target of the symlink is missing?
>>
>>> The exec will not run in this case. The 'creates' attribute looks for
>>> something to exist at the specified path. A symlink, even if broken, is
>>> still a file.
>>
>>> These hypotheticals are simple to test out on your own. To test this case
>>> on any puppet client, first create a class:
>>
>>> #test.pp:
>>> class test {
>>> exec { 'touch /opt/test.did.run': creates => '/opt/test.link' }
>>> }
>>
>>> Then create a symlink to a non-existent file:
>>
>>> ln -s /opt/nada /opt/test.link
>>
>>> Finally:
>>
>>> puppet apply test.pp
>>
>>> /opt/test.did.run won't be created.
>>
>> Apologies, I was completely wrong. Must be something amiss with the above
>> manifest. Even when the target is missing it wasn't running the exec. The
>> following code will run the exec if the target is a broken symlink but will
>> not run it if the target it a valid symlink:
>>
>> puppet apply -e 'exec { "/bin/touch /opt/exec.did.run": creates =>
>> "/opt/test.link" }'
>>
>> So, again, my former conclusion was incorrect. 'creates' appears to be smart
>> enough to recognize a broken symlink as a missing file.
>
>
> I don't call that "smart", I call it "buggy". The target of a symlink
> is not the symlink itself. Even a broken symlink named in an Exec's
> 'creates' should be sufficient to prevent that Exec from running. At
> best, the documentation is inadequate. I encourage you to file an
> issue report.
>
>
> John
Submitted.
http://projects.puppetlabs.com/issues/13126
--
Peter M. Bukowinski
Sr. Systems Engineer
Janelia Farm Research Campus, HHMI
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