Puppet users - Jan 2013 - Puppet 2.6 - Custom functions - environments issue

Hello every one,

I have looked at a lots of threads in the Puppet User group but I did not 
find a clear answer or explanation how custom functions work....
Here is my current setup :


* I have *2 "environments"*. working fine
/etc/puppet/environments/production/
/etc/puppet/environments/test/

* I have a version of my function already working in production

* According to the documentation, *"functions" are executed on puppet 
master Side*.
So I put my *new version* into 
/var/lib/puppet/lib/puppet/parser/functions/myfunction.rb on the master.
My new version is also present in
/etc/puppet/*environments/test*/modules/mymodule/lib/puppet/parser/function/myfunction.rb
and synced to the agent via "pluginsync"


* When I run my puppet agent on my "test" environment, I get the
expected
behavior.
So I merged my changes in the "production" environment.

* Now when I run my agent on the "production" Environment, I get the 
behavior of the previous version of my function.
If I run the agent right away against the "test" environment, I get
again
the expected behavior...
I checked the files in both environment through md5sum and they are the 
same.
And the /var/lib... on the master is also the same....


So, how exactly does it work ?


More details : 
- Debian Squeeze
- Puppet 2.6.2
- Apache + Passenger Front End


Thanks a lot for your answers !


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On Friday, January 18, 2013 7:56:20 AM UTC-6, xkrantz
wrote:
>
> Hello every one,
>
> I have looked at a lots of threads in the Puppet User group but I did not 
> find a clear answer or explanation how custom functions work....
> Here is my current setup :
>
>
> * I have *2 "environments"*. working fine
> /etc/puppet/environments/production/
> /etc/puppet/environments/test/
>
> * I have a version of my function already working in production
>
> * According to the documentation, *"functions" are executed on
puppet
> master Side*.
> So I put my *new version* into 
> /var/lib/puppet/lib/puppet/parser/functions/myfunction.rb on the master.
> My new version is also present in
/etc/puppet/*environments/test*/modules/mymodule/lib/puppet/parser/function/myfunction.rb
> and synced to the agent via "pluginsync"
>
>
> * When I run my puppet agent on my "test" environment, I get the
expected
> behavior.
> So I merged my changes in the "production" environment.
>
> * Now when I run my agent on the "production" Environment, I get
the
> behavior of the previous version of my function.
> If I run the agent right away against the "test" environment, I
get again
> the expected behavior...
> I checked the files in both environment through md5sum and they are the 
> same.
> And the /var/lib... on the master is also the same....
>
>
> So, how exactly does it work ?
>
>
Once Puppet loads a function implementation by processing its Ruby source 
file, I don''t think it will ever process that Ruby source again in the
same
run.  Try restarting the master.


John
 

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Le vendredi 18 janvier 2013 20:52:03 UTC+1, jcbollinger a écrit :
>
>
> On Friday, January 18, 2013 7:56:20 AM UTC-6, xkrantz wrote:
>>
>> Hello every one,
>>
>> I have looked at a lots of threads in the Puppet User group but I did
not
>> find a clear answer or explanation how custom functions work....
>> Here is my current setup :
>>
>>
>> * I have *2 "environments"*. working fine
>> /etc/puppet/environments/production/
>> /etc/puppet/environments/test/
>>
>> * I have a version of my function already working in production
>>
>> * According to the documentation, *"functions" are executed
on puppet
>> master Side*.
>> So I put my *new version* into 
>> /var/lib/puppet/lib/puppet/parser/functions/myfunction.rb on the
master.
>> My new version is also present in
/etc/puppet/*environments/test*/modules/mymodule/lib/puppet/parser/function/myfunction.rb
>> and synced to the agent via "pluginsync"
>>
>>
>> * When I run my puppet agent on my "test" environment, I get
the expected
>> behavior.
>> So I merged my changes in the "production" environment.
>>
>> * Now when I run my agent on the "production" Environment, I
get the
>> behavior of the previous version of my function.
>> If I run the agent right away against the "test" environment,
I get again
>> the expected behavior...
>> I checked the files in both environment through md5sum and they are the
>> same.
>> And the /var/lib... on the master is also the same....
>>
>>
>> So, how exactly does it work ?
>>
>>
> Once Puppet loads a function implementation by processing its Ruby source 
> file, I don''t think it will ever process that Ruby source again in
the same
> run.  Try restarting the master.
>
>
> John
>  
>
Hi John, 

Indeed, after a while (Passenger''s threads with puppet masterd process 
stopped and restarted), it was ok.

But still, I have experienced different behaviors according to the 
"Environment" my puppet Agents were running against.
So, does Puppet master load different versions of the function''s ruby
files
per environments ?


Thanks again !


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On Sat, Jan 19, 2013 at 11:37 AM, xkrantz <xkrantz@viadeoteam.com> wrote:
> Le vendredi 18 janvier 2013 20:52:03 UTC+1, jcbollinger a écrit :
>
>
>>
>> On Friday, January 18, 2013 7:56:20 AM UTC-6, xkrantz wrote:
>>>
>>> Hello every one,
>>>
>>> I have looked at a lots of threads in the Puppet User group but I
did
>>> not find a clear answer or explanation how custom functions
work....
>>> Here is my current setup :
>>>
>>>
>>> * I have *2 "environments"*. working fine
>>> /etc/puppet/environments/**production/
>>> /etc/puppet/environments/test/
>>>
>>> * I have a version of my function already working in production
>>>
>>> * According to the documentation, *"functions" are
executed on puppet
>>> master Side*.
>>> So I put my *new version* into
/var/lib/puppet/lib/puppet/**parser/functions/myfunction.rb
>>> on the master.
>>> My new version is also present in
/etc/puppet/*environments/test*/**
>>> modules/mymodule/lib/puppet/**parser/function/myfunction.rb and
synced
>>> to the agent via "pluginsync"
>>>
>>>
>>> * When I run my puppet agent on my "test" environment, I
get the
>>> expected behavior.
>>> So I merged my changes in the "production" environment.
>>>
>>> * Now when I run my agent on the "production"
Environment, I get the
>>> behavior of the previous version of my function.
>>> If I run the agent right away against the "test"
environment, I get
>>> again the expected behavior...
>>> I checked the files in both environment through md5sum and they are
the
>>> same.
>>> And the /var/lib... on the master is also the same....
>>>
>>>
>>> So, how exactly does it work ?
>>>
>>>
>> Once Puppet loads a function implementation by processing its Ruby
source
>> file, I don''t think it will ever process that Ruby source
again in the same
>> run.  Try restarting the master.
>>
>>
>> John
>>
>>
>
> Hi John,
>
> Indeed, after a while (Passenger''s threads with puppet masterd
process
> stopped and restarted), it was ok.
>
> But still, I have experienced different behaviors according to the
> "Environment" my puppet Agents were running against.
> So, does Puppet master load different versions of the function''s
ruby
> files per environments ?
>
The corollary from what John said is environments are lightweight methods
for testing new manifests. Anything written in ruby such as functions
should be tested and deployed in separate puppet master instances.
 Environments are not suitable as containers for running different ruby
code or multi-tenancy.

Nan

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