Puppet users - Jun 2013 - Apply a specific manifest on agent

Hi All,

I am new to Puppet and I am wondering if there is a way to just apply a 
manifest one-time (present on the master, not included in site.pp) on an 
agent node without having to edit site.pp? It''s like I want to run a 
command on the agent that will do this for me.

Something analogous to "puppet apply <manifest>" except that the
manifest
is not locally present on the agent, but on the master...

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Hi, depending on your code you can look at a few options.

When an agent connects to the puppet master you can supply a --tag var that you
can then inspect and make changes in your code paths.

The other thing you can do is add --environment and use the environment features
that puppet has to load a completely different site.pp.

There''s a puppet git workflows page that will come up in google that
explains the environments - tags can be found in puppet docs. (Can''t
get you direct links, sorry).

THT
Den

On 21/06/2013, at 7:21, Dhananjayan Ramesh <dhananjayanramesh@gmail.com>
wrote:
> Hi All,
> 
> I am new to Puppet and I am wondering if there is a way to just apply a
manifest one-time (present on the master, not included in site.pp) on an agent
node without having to edit site.pp? It''s like I want to run a command
on the agent that will do this for me.
> 
> Something analogous to "puppet apply <manifest>" except
that the manifest is not locally present on the agent, but on the master...
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>  
>  
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On Thursday, June 20, 2013 4:21:00 PM UTC-5, Dhananjayan Ramesh
wrote:
>
> Hi All,
>
> I am new to Puppet and I am wondering if there is a way to just apply a 
> manifest one-time (present on the master, not included in site.pp) on an 
> agent node without having to edit site.pp? It''s like I want to run
a
> command on the agent that will do this for me.
>
> Something analogous to "puppet apply <manifest>" except
that the manifest
> is not locally present on the agent, but on the master...
>

Not as such, no.  Puppet does not recognize manifest files as a 
remotely-addressable unit of organization.  Also, any catalog the master 
provides to an agent will contain only resources that have been declared 
for that agent, as directed by the appropriate entry-point manifest 
(normally site.pp).  You can alter the declarations that will be made for a 
given node by requesting a different (pre-defined) environment, and you can 
select a subset of the resources declared for the client node via the --tag 
option, but you cannot ask for arbitrary manifest files.

This is the point where I normally say "puppet is not a script engine"
and
urge you to not try to use it as if it were.


John

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On 06/20/2013 11:21 PM, Dhananjayan Ramesh wrote:
> Hi All,
>
> I am new to Puppet and I am wondering if there is a way to just apply a
> manifest one-time (present on the master, not included in site.pp) on an
> agent node without having to edit site.pp? It''s like I want to run
a
> command on the agent that will do this for me.
>
> Something analogous to "puppet apply <manifest>" except
that the
> manifest is not locally present on the agent, but on the master...
Although you could do that with puppet, note that puppet is not designed 
for this kind of tasks. It''s like hitting a nail with a shoe, when
it''s
better to use hammer.

Try some kind of remote execution tool, like PuppetLabs acquired 
mcollective, c3-powertools or anything on that line.


-- 
Jakov Sosic
www.srce.unizg.hr

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