Puppet users - Apr 2011 - is it possible to take definition parameters from a database?

hello everybody,

I really wonder that can we use a database for our definition calls.
assume that we have a definition which is used for adding virtual
hosts to apache configuration file like below:

apache:addvhost {"abc": param1=>value1, param2=>value2}

There may be thousands of lines like above. so is it possible to store
val1, val2 values in a database and do our job only calling a line
like this:

for every $p1 and $p2 in valueTable in mypuppetDB:
   apache:addvhost {"abc": param1=>$p1, param2=>$p2}

Above code is pseudo.

thanks in advance.

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> for every $p1 and $p2 in valueTable in mypuppetDB:
>    apache:addvhost {"abc$p1$p2": param1=>$p1, param2=>$p2}
I corrected the title as abc$p1$p2

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> -----Original Message-----
> From: puppet-users@googlegroups.com 
> [mailto:puppet-users@googlegroups.com] On Behalf Of rowan holmes
> Sent: 19 April 2011 22:22
> To: Puppet Users
> Subject: [Puppet Users] is it possible to take definition 
> parameters from a database?
> 
> There may be thousands of lines like above. so is it possible 
> to store val1, val2 values in a database and do our job only 
> calling a line like this:
> 
> for every $p1 and $p2 in valueTable in mypuppetDB:
>    apache:addvhost {"abc": param1=>$p1, param2=>$p2}
I don''t know about doing it via puppet - I suspect not without custom
Functions and/or outside help.

I assume you know about this:

http://httpd.apache.org/docs/2.0/vhosts/mass.html

and deem it not suitable.

-- 
Russell Howe
rhowe@moonfruit.com

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> I don''t know about doing it via puppet - I suspect not without
custom
> Functions and/or outside help.
>
> I assume you know about this:
>
> http://httpd.apache.org/docs/2.0/vhosts/mass.html
>
> and deem it not suitable.
Thanks Russell,

I know about that but I asked in general

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On Tue, Apr 19, 2011 at 02:21:39PM -0700, rowan holmes wrote:
> I really wonder that can we use a database for our definition calls.
> assume that we have a definition which is used for adding virtual
> hosts to apache configuration file like below:
You can, quite happily, but you have to write it yourself I''m afraid.

You could use an ENC (External Node Classifier), and have that output all
your node and thus parameter data from your database. See
http://docs.puppetlabs.com/guides/external_nodes.html

Or write a parser function, such as extlookup but talking to a database
back end.
http://www.devco.net/archives/2009/08/31/complex_data_and_puppet.php

-- 
Ben Hughes || http://www.puppetlabs.com/

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