are there iterators and loops in puppet?

Question

When I define(?) a resource e.g. to ensure dir structure, are there any loops available?

Like that:

  for X in [app1,app2] do:
    file { \'/opt/app/         


        

Answer 1

Yes. "Ruby DSL" could help, just use file extension ".rb" instead of ".pp" in manifest and you can define puppet "type" like this:

define 'myapps::structure', :applist do
   @applist.each do |app|
       file( @name+'/'+app, 
             :ensure => directory,
             :owner  => 'root',
             :group  => 'root',
             :mode   => '0644')
   end
end

Classes and nodes also can be defined in similar way. Notice however that this feature is deprecated since release 3