On 09/04/2009, at 12:11 PM, Luke Kanies wrote:
>
> On Apr 8, 2009, at 3:58 AM, Graham Stratton wrote:
>
>>
>> I'm using puppet 0.24.7. I have the following simple setup:
>>
>>
>> define buildout($path, $eggs, $python) {
>> file { $path:
>> ensure => directory,
>> }
>> file { "$path/bootstrap.py":
>> source => "puppet:///pythonutils/bootstrap.py"
>> }
>> file { "$path/buildout.cfg":
>> content => template("pythonutils/buildout.cfg"),
>> }
>> exec { "bootstrap_$path":
>> require => [File["$path/bootstrap.py"], File["$path/
>> buildout.cfg"]],
>> command => "cd $path; python2.5 bootstrap.py",
>> unless => "test -d $path/bin",
>> }
>> exec { "build_$path":
>> require => Exec["bootstrap_$path"],
>> command => "cd $path; ./bin/buildout",
>> subscribe => File["$path/buildout.cfg"],
>> refreshonly => true
>> }
>> }
>>
>> The bottom resource depends on the one above it. But if that one
>> initially fails to run, then the bottom one will not be triggered
>> when
>> it eventually does. Is this expected behaviour when refreshonly is
>> set?
>
>
> Any resource subscribing to another resource should *always* run when
> that subcribed-to resource changes something.
>
> But there's got to be something else going on; Puppet doesn't maintain
> state between runs, so either it fires off an event or it doesn't, and
> if it does, then the other resource should get triggered.
Ah, okay, I understand now. So the refreshonly was meaning that the
bottom resource was only running when the file resource changed. But
if on the same run that file changed the resource that it requires
failed, then it would never run. I had this idea that refreshonly
should mean that it ran at least once, but that's not guaranteed.
I've now moved to using unless instead of refreshonly and have the
behavior I want. Sorry for the noise.
Regards,
Graham
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