A very popular design is the "module per package/service" approach.
Your
modules become building blocks and your node definitions pull all the
building blocks in to describe a certain machine. So if you''ve got web
and database server types, your modules might be "apache" and
"mysql".
If you are just starting out you might want a "dev_apache" and
"prod_apache" module, but once you get more confident in your Puppet
skills you will want to start coding your modules with a bit of
flexibility, so you can use the same apache module for your development
and production servers. After all, Puppet is about not repeating yourself.
The Pro Puppet book is a very good place to start - it starts simple and
then goes into the apache::install, apache::config and apache::service
sub-class design which I''m a big fan of.
Hope that helps,
-Luke
On 14/09/12 07:23, Gregory Orange wrote:> Hi everyone,
> We''ve got a fairly small set of machines (perhaps 30) soon to be
> managed with puppet. We''re looking for a good way to define which
> machines get which packages, and how those packages are configured on
> certain sets of machines.
>
> e.g. Apache on devel and production-webserver machines, but not on
> producation-db machines. Apache should be configured differently on
> devel machines compared to production-webserver machines.
>
> I''ve read a couple of conflicting opinions on this from mailing
list
> archives (I think) pages on the puppetlabs website, and the Pro Puppet
> book, so I''m ignoring it all for the moment and asking for
opinions here.
>
> TIA,
> Greg.
>
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luke.bigum@lmax.com | http://www.lmax.com
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