## Custom fact to assign GID/UID's on a per-node basis

File.open("/etc/passwd").each do |line|
   gecos = line.split(/:/)

   Facter.add("#{gecos[0]}_uid") do
      setcode { gecos[2] }
   end
   Facter.add("#{gecos[0]}_pgid") do
      setcode { gecos[3] }
   end
end

File.open("/etc/group").each do |line|
   gecos = line.split(/:/)

   Facter.add("#{gecos[0]}_gid") do
      setcode { gecos[2] }
   end
end


## Function to retrieve the UID and GID dynamically

module Puppet::Parser::Functions
   newfunction(:lookupvar, :type => :rvalue) do |args|
      return args[0] if args[0]
   end
end


## Virtual user declaration

define account ( ensure, groups, shell, comment, provider = directoryservice, unixpw ) {

   ...snip...

   # Instantiate the user; currently uid's/gid's are dynamically assigned due to inconsistencies across system (hence the virtual resource)
   @user { 'jsmith':
      ensure   => $ensure,
      uid      => lookupvar("${name}_uid"),
      gid      => lookupvar("${name}_pgid"),
      groups   => $supp_groups,
      comment  => $comment,
      shell    => $user_shell,
      provider => $provider,
      password => $unixpw;
   }

   ...snip...

}