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<H1>[Mageia-sysadm] Questions about puppet config</H1>
<B>Sébastien Kurtzemann</B>
<A HREF="mailto:mageia-sysadm%40mageia.org?Subject=Re%3A%20%5BMageia-sysadm%5D%20Questions%20about%20puppet%20config&In-Reply-To=%3CCAHHMSxiq6WaNdgv8f9%2B3C8p3At-EG%2BVZSmT5-5RTP9sZCxrbww%40mail.gmail.com%3E"
TITLE="[Mageia-sysadm] Questions about puppet config">sebelee at free.fr
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<I>Tue Jul 19 17:38:50 CEST 2011</I>
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<PRE>2011/7/19 Michael Scherer <<A HREF="https://www.mageia.org/mailman/listinfo/mageia-sysadm">misc at zarb.org</A>>
><i>
</I>><i> Le mardi 19 juillet 2011 à 02:54 +0200, <A HREF="https://www.mageia.org/mailman/listinfo/mageia-sysadm">sebelee at free.fr</A> a écrit :
</I>><i> > After regarding a little bit the puppet configuration, I have some questions about the current puppet configuration.
</I>><i> >
</I>><i> >
</I>><i> > 1) Why using both subscribe() and notify() metaparameters ?
</I>><i>
</I>><i> Mainly a question of style.
</I>><i>
</I>><i> You can use the graph feature to see everything :
</I>><i> <A HREF="http://bitfieldconsulting.com/puppet-dependency-graphs">http://bitfieldconsulting.com/puppet-dependency-graphs</A>
</I>><i> ( except that we do not provides them purely by slack )
</I>><i>
</I>><i> I guess a simple task to learn puppet would be to make them usable by
</I>><i> everybody. But I can also do it quite fast, if you need to look to the
</I>><i> graphs.
</I>><i>
</I>><i>
</I>Okay thanks for this information about viewing graphs dependency ;)
><i> > 2) In the same idea, after reading the beginning of the book "Pro Puppet", the author
</I>><i> > describes a sort of Best Pratice for managing puppet's module.
</I>><i>
</I>><i> This seems quite overkill for simple module, and I am not sure it will
</I>><i> help to reduce so much the complexity on complex module ( such as sympa
</I>><i> or subversion ). While I would agree that we should have some shared
</I>><i> style to help rereading the code, I also think this is one issue that
</I>><i> can trigger some heated arguments. Despite being annoyed every day by
</I>><i> the mix of space and tabs in subversion or buildsystem, I never pushed
</I>><i> for uniformisation there, but maybe that should be done.
</I>><i>
</I>Ok
><i> > 3) With this schema, we can also classify specials functionnalites or class by creating one or more extra file(s)
</I>><i> >
</I>><i> >
</I>><i> > I'm just a beginner with puppet and I don't know if this a method can work
</I>><i> > for a production environnement day after day...
</I>><i>
</I>><i> It greatly depend on what you mean by "work" :)
</I>><i>
</I>With "work", I mean not breaking the current architecture :P
><i> I do not see obvious reasons it would break something, and to me, the
</I>><i> question is just to know if too much division will really improve
</I>><i> comprehension.
</I>><i>
</I>><i> It is like java. I like the java layering and separation of modules, at
</I>><i> least on paper, it is quite clean. In practice, there is this feeling of
</I>><i> awful complexity due to the separation and heavy use of object
</I>><i> hierarchy :/
</I>><i>
</I>><i> I can understand your frustration of having to read a large corpus of
</I>><i> code/configuration without having this feeling of a clean base ( ie,
</I>><i> different conventions, lack of style, etc ). And we do have some need
</I>><i> for cleaning and consistency for sure.
</I>><i>
</I>><i> But on the other hand, having a too rigid structure of things may have
</I>><i> been too constraining for a small team, to start.
</I>><i>
</I>I'm not afraid to read large corpus ;)
But it's more difficult to start and understand how things works if we
had different conventions and structures all over modules.
And I completely agree with you that a too rigid structure may constraint team.
So starting to send you some patches for cleaning and uniform modules
structures will be a good thing now ? Or maybe later ? Or Not ?
><i> > But i think instead of having all the module's classes in a same file, split them
</I>><i> > into specifics items would be more easy for understanding and also give more granularity.
</I>><i>
</I>><i> The granularity is already achieved at class level, and I think we are
</I>><i> quite good at this point. Too much would maybe be over-engineering at
</I>><i> this point, we only have 7 servers :)
</I>><i>
</I>Yep
><i> --
</I>><i> Michael Scherer
</I>><i>
</I>><i> _______________________________________________
</I>><i> Mageia-sysadm mailing list
</I>><i> <A HREF="https://www.mageia.org/mailman/listinfo/mageia-sysadm">Mageia-sysadm at mageia.org</A>
</I>><i> <A HREF="https://www.mageia.org/mailman/listinfo/mageia-sysadm">https://www.mageia.org/mailman/listinfo/mageia-sysadm</A>
</I>
--
Sébastien Kurtzemann
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