Forum: CFEngine Help Subject: Re: Do a single DNS lookup Author: sauer Link to topic: https://cfengine.com/forum/read.php?3,23813,23815#msg-23815
Yes, the logic could be encapsulated in a bundle that sets a single var which is used everywhere. That's what I'm trying to do here. :) Unfortunately, due to the three-pass nature, if I set the vars up as overrideable, the variable contents end up being the address of the wrong master when I use the var later. What I need to do is have a way to capture the first value returned. Unfortunately, the most straightforward means of identifying which location I'm running in is DNS. I've been toying with the idea of including our network definition information in the Cfengine policy, but that's data duplication, and data duplication is typically a Bad Thing. As far as fragility, I'd argue that this is more robust in the environment I'm describing. If we need to move one of the secondaries to a new IP, move a machine name to a different location, etc, then the reconfiguration is handled in one place - DNS. I actually wanted DNS to return only the address for the location-specific primary, but whatever software they use to manage CNAMEs dictated that they should do it this way. Maybe I'll pressure them a little more to make sure that they can't just resolve the root problem of returning the wrong machines... _______________________________________________ Help-cfengine mailing list Help-cfengine@cfengine.org https://cfengine.org/mailman/listinfo/help-cfengine
