On Thursday, January 24, 2013 6:59:59 PM UTC-6, blalor wrote: > > I'm looking for a way to parameterize the module path at runtime based on > multiple variables, including the environment. We've got a puppet master > that serves nodes from several different projects, each of which have their > own dev/test/prod environments. I'd like for each project to have their > own entry in the module path. This way a project could have control over > multiple modules and create new ones as they see fit, without impacting > others who use the same puppetmaster. I'm envisioning something like > > /etc/puppet/modules/common:/etc/puppet/modules/$project/$environment > > > where $project is a fact attached to the node that's checking into the > master. This > > Is this possible? Can arbitrary variables be used in the modulepath in > puppet.conf? > >
I don't think it's possible, and if it were possible then I would account it very unwise. Part of the problem is that the Puppet agent syncs plugins before computing facts (required to support custom facts), and plugins typically reside in modules. Therefore, either the master must choose a module path without relying on node facts, or you risk the master using a different module path for pluginsync than for catalog compilation, so that clients may sync the wrong plugins. As I see it, your best options are these: 1. Provide a separate master for each project. 2. Allow projects to control modules only within a project-specific namespace (<project>::mymodule1, etc.), within each environment. Which of those makes more sense depends a lot on your objectives with each project. If they are intended ultimately to be deployed in the same site(s) and therefore to coexist, then it makes sense for them to share a master and dev / test / prod environments. If they don't, then you bear a substantial risk of target environment skew. If they share, however, then not only do you avoid skew, but you stand to identify integration issues a lot earlier than otherwise you might. If, on the other hand, it is not of particular concern whether the projects can coexist, then separate masters make a lot of sense. 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. Visit this group at http://groups.google.com/group/puppet-users?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
