On Monday, July 2, 2012 3:42:34 PM UTC-5, Jeremy Carroll wrote: > > During DevOpsDays it was brought up that there may be a patch for ordered > hashes with Hiera. Without this patch, all of my catalogs are compiled in > random order. Any links to a patch that I can back-port, or a commit #?
I know nothing about the Hiera modifications you are asking about, but I would like to suggest that you consider writing classes so that they are insensitive to the order they are declared. A manifest set written in this way is much more resilient and easier to maintain than one that requires * you* to find a suitable order in which to declare classes. It's good no matter what mechanism you use to declare classes (direct, hiera, ENC, ...). This is entirely possible -- not even all that hard -- provided that you avoid the parametrized-class syntax for declaring classes, and instead use good old 'include' (or 'require'). You must also avoid constructs that are inherently parse-order dependent, most notably using the 'defined' function to determine whether a class has been declared for the target node. Then have every class start by 'include'ing each other class on which it has direct parse-order dependencies, and you should be good to go. Avoiding parametrized-class declaration syntax has always been a good idea. Even if using external data (e.g. from hiera) were not a technically superior design, Puppet's parametrized class declaration syntax has serious technical problems attending it (not least that it does not in general allow classes to declare their dependencies). Puppet 3 ties class parameters to hiera, which provides a way forward for shops that have invested heavily in class parametrization. It also has documentary and convenience advantages. John -- You received this message because you are subscribed to the Google Groups "Puppet Users" group. To view this discussion on the web visit https://groups.google.com/d/msg/puppet-users/-/J8-qmX1ZPFwJ. 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.
