Puppet users - Apr 2013 - can puppet agent use 2 independent puppet master ?

Hi all, 

I havent seen a similar post, so thought I''d ask - 

Is it possible to make a puppet agent use 2 different puppet masters ? E.g. 
I want to use 1 master to do basic configuration changes, etc. and a 2nd 
master to do other more application specific changes - the idea is to keep 
the system changes fully separated from the application changes that would 
be applied. 

Any clues / hints / links ? 

Thanks!
Alex

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On 27 April 2013 18:32, Alex Leonhardt <alex.tuxx@gmail.com> wrote:
> Hi all,
>
> I havent seen a similar post, so thought I''d ask -
>
There have actually been quite a few people asking this very thing.

Is it possible to make a puppet agent use 2 different puppet masters ?
E.g.
> I want to use 1 master to do basic configuration changes, etc. and a 2nd
> master to do other more application specific changes - the idea is to keep
> the system changes fully separated from the application changes that would
> be applied.
>
Why do you need to do this?
The general consensus on using two different puppet masters for a node is
that it''s a very bad idea.

Doing what you describe about is very easy with one puppet master.
I manage a very wide range of services and applications all on one master.
I use a bunch of different modules each managing one service.

>
> Any clues / hints / links ?
>
> Thanks!
> Alex
>
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>
>
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On Saturday, April 27, 2013 3:32:36 AM UTC-5, Alex Leonhardt
wrote:
>
> Hi all, 
>
> I havent seen a similar post, so thought I''d ask - 
>
> Is it possible to make a puppet agent use 2 different puppet masters ?
>

One agent is associated with one master.  It cannot talk to two.  In 
principle, you could run two independent agents on the same node, talking 
to different masters, but this is a very bad idea.

 
> E.g. I want to use 1 master to do basic configuration changes, etc. and a 
> 2nd master to do other more application specific changes - the idea is to 
> keep the system changes fully separated from the application changes that 
> would be applied. 
>

Impossible.  Your application is dependent on the underlying basic system 
configuration, so no matter what you do you cannot keep them fully 
separated.  You could draw an arbitrary line somewhere to partition your 
configured resources between two masters, but all that really would do is 
make things harder for you by preventing you from expressing relationships 
between resources assigned to different partitions.

There are a number of things you can do to organize resources within a 
single master.  The most basic is to use modules appropriately.  If you 
want physical separation of manifests on your master, then you can add one 
or more directories to your module path so that you can put your 
application modules in a separate tree from your base-system modules.  
There may be other things you can do to address specific concerns.


John

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