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diff --git a/zarb-ml/mageia-sysadm/2010-November/000534.html b/zarb-ml/mageia-sysadm/2010-November/000534.html new file mode 100644 index 000000000..86e759f03 --- /dev/null +++ b/zarb-ml/mageia-sysadm/2010-November/000534.html @@ -0,0 +1,121 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> +<HTML> + <HEAD> + <TITLE> [Mageia-sysadm] Keep puppet module generic without hardcoding domain name + </TITLE> + <LINK REL="Index" HREF="index.html" > + <LINK REL="made" HREF="mailto:mageia-sysadm%40mageia.org?Subject=Re%3A%20%5BMageia-sysadm%5D%20Keep%20puppet%20module%20generic%20without%20hardcoding%0A%09domain%20name&In-Reply-To=%3C1289840626.722.145.camel%40akroma.ephaone.org%3E"> + <META NAME="robots" CONTENT="index,nofollow"> + <META http-equiv="Content-Type" content="text/html; charset=us-ascii"> + <LINK REL="Previous" HREF="000529.html"> + <LINK REL="Next" HREF="000535.html"> + </HEAD> + <BODY BGCOLOR="#ffffff"> + <H1>[Mageia-sysadm] Keep puppet module generic without hardcoding domain name</H1> + <B>Michael Scherer</B> + <A HREF="mailto:mageia-sysadm%40mageia.org?Subject=Re%3A%20%5BMageia-sysadm%5D%20Keep%20puppet%20module%20generic%20without%20hardcoding%0A%09domain%20name&In-Reply-To=%3C1289840626.722.145.camel%40akroma.ephaone.org%3E" + TITLE="[Mageia-sysadm] Keep puppet module generic without hardcoding domain name">misc at zarb.org + </A><BR> + <I>Mon Nov 15 18:03:46 CET 2010</I> + <P><UL> + <LI>Previous message: <A HREF="000529.html">[Mageia-sysadm] [254] Add params file +</A></li> + <LI>Next message: <A HREF="000535.html">[Mageia-sysadm] Backups +</A></li> + <LI> <B>Messages sorted by:</B> + <a href="date.html#534">[ date ]</a> + <a href="thread.html#534">[ thread ]</a> + <a href="subject.html#534">[ subject ]</a> + <a href="author.html#534">[ author ]</a> + </LI> + </UL> + <HR> +<!--beginarticle--> +<PRE>Hi, + +Looking after most commits, I see that we often hardcode the domain name +in the puppet manifest and template. + +I think we should avoid for various reasons : + +- hard coding anything is never good + +- if one day we fork again, or if we are forced to change project name +( both have occurred in the past for mandriva, so maybe we could be +proactive this time ), this would be easier for us ( or them, depending +on the side of the fork we are ). + +- this greatly enhance the module reusability ( IE, I cut and past some +module that I use on my server ) + +- this is not really complex to achieve, thanks to templating + +and the more important reason : + +- this allow us to set up test VMs/servers without fiddling with DNS too +much, and prevent stupid errors ( like changing /etc/hosts and +forgetting this was changed ). + + + +So, if you agree with me, and if you see mageia.org in some templates +files ( except in bind for obvious reason ), just replace this with <%= +domain %>. See for example commit 221. + +This is the ERB syntax ( erb being the template engine of ruby and +puppet ) for expanding the variable, see +<A HREF="http://en.wikipedia.org/wiki/ERuby">http://en.wikipedia.org/wiki/ERuby</A> + +The list of variable to use can be found with the facter command. + +And for the ldap dc=mageia,dc=org, we can either add a variable to +facter ( this would be cleaner, but more complex +<A HREF="http://projects.puppetlabs.com/projects/1/wiki/Adding_Facts">http://projects.puppetlabs.com/projects/1/wiki/Adding_Facts</A> ), or use +this in the template : + +<% +dc_suffix = 'dc=' + domain.gsub('.',',dc=') +%> + +<%= dc_suffix %> + +See commit 211 for example on how do this. + + +Of course, if there is something I missed, do not hesitate to tell. +-- +Michael Scherer + +</PRE> + + + + + + + + + + + + +<!--endarticle--> + <HR> + <P><UL> + <!--threads--> + <LI>Previous message: <A HREF="000529.html">[Mageia-sysadm] [254] Add params file +</A></li> + <LI>Next message: <A HREF="000535.html">[Mageia-sysadm] Backups +</A></li> + <LI> <B>Messages sorted by:</B> + <a href="date.html#534">[ date ]</a> + <a href="thread.html#534">[ thread ]</a> + <a href="subject.html#534">[ subject ]</a> + <a href="author.html#534">[ author ]</a> + </LI> + </UL> + +<hr> +<a href="https://www.mageia.org/mailman/listinfo/mageia-sysadm">More information about the Mageia-sysadm +mailing list</a><br> +</body></html> |