On May 11, 4:27 pm, Jeff McCune <j...@puppetlabs.com> wrote: > On Wed, May 11, 2011 at 12:17 AM, Julien Garet <julien.ga...@inria.fr>wrote: > > > Hello, > > I am facing a strange behaviour with exported resources overriding in > > 0.25.5 (CentOS). I am using nagios with exported resources. In my base > > class, I define a hostgroup by default for all nodes. In an apache vhost > > define, I override this hostgroup to a value common to all webservers. This > > works. > > But in another class, I use apache vhost define but I want to override > > another time the hostgroup to set it to another value. This does not work, > > the hostgroup for the host is set to the one for apache vhosts. > > > Is there a way to tell that the last resource override should happen after > > the apache vhost define is applied ? > > Unfortunately there isn't. The feature you're using to override resources > is actually a bit of an unintended consequence of another feature added to > Puppet in 0.25.5.
I consider that unfortunate only insomuch as it makes the OP's life more difficult. In general, Puppet does not like it when you make contradictory declarations about a node, and I am happy to have it that way. Even when 2.7 makes the result of evaluation of such a manifest deterministic, *relying* on that evaluation order to resolve conflicts will still be a poor idea. What I consider unfortunate here is that Puppet does not raise an error when an attempt is made to perform conflicting overrides. > In Puppet 2.7, the order these resources will be evaluated in will be > guaranteed to be deterministic, so this will help with testing and staging > into pre-production, but currently the best practice is to not override the > same parameter using the collection syntax. And that will remain the best practice for the foreseeable future, as far as I am concerned. Speaking of deterministic evaluation, just how stable is it going to be? That is, it's one thing for ordering to be consistent for a particular set of manifests, but what will happen when the manifests are modified? How will ordering be affected by manifest changes? John -- You received this message because you are subscribed to the Google Groups "Puppet Users" group. To post to this group, send email to puppet-users@googlegroups.com. To unsubscribe from this group, send email to puppet-users+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/puppet-users?hl=en.
