Puppet users - Jan 2008 - mixing templates and other methods for a file''s content

Hello there,
I have come to a situation where I would like to mix 2 approaches to  
create the contents of a file. Here is what I have:

a module ''sudo'' which manages a hosts /etc/sudoers file:

init.pp:

class sudo {
   case $operatingsystem {
     Debian: {
	package { "sudo": }
   }
   }
   file {  "/etc/sudoers":
     mode => 440, content => template("sudo/sudoers.erb"),
     tag => sudo,
   }
}

and sudoers.erb:

<%
   musers = ""
   susers = ""
   IO.foreach("/etc/puppet/bootstrap/hosts.dat") do |l|
     a = l.split
     if a[1] == hostname
       musers = a[5]
       if a.length >= 8
	susers = a[7]
       end
       break
     end
   end
%>
Cmnd_Alias INST      = /usr/sbin/synaptic, /usr/bin/cpan, /usr/bin/apt- 
get

root ALL=(ALL) ALL
%adm ALL=(ALL) ALL

#### These users can install and deinstall stuff
<% if musers.length > 0 -%>
User_Alias MAINUSERS = <%= musers %>
MAINUSERS ALL = (ALL) PASSWD: INST
<% end -%>

### These users can ''su'' to root
<% if susers.length > 0 -%>
User_Alias SUDOERS  = <%= susers %>
SUDOERS	ALL = (ALL) PASSWD: /bin/su
<% end -%>

======== end sudoers.erb


In the template, we read from a file (hosts.dat, on the puppetmaster),  
where we store some information about our hosts. In this file we store  
login names which have certain sudo permissions on certain hosts.

Now, I would like to extend the module such that I can add additional  
entries in /etc/sudoers but still retain the functionality displayed  
here.

Is this possible? If yes, how?
Thank you all,
udo.
-- 
:: udo waechter - root@zoide.net :: N 52º16''30.5" E
8º3''10.1"
:: genuine input for your ears: http://www.auriculabovinari.de
::                          your eyes: http://ezag.zoide.net
::                          your brain: http://www.zoide.net

On Jan 19, 2008, at 3:33 AM, udo waechter wrote:
> In the template, we read from a file (hosts.dat, on the puppetmaster),
> where we store some information about our hosts. In this file we store
> login names which have certain sudo permissions on certain hosts.
>
> Now, I would like to extend the module such that I can add additional
> entries in /etc/sudoers but still retain the functionality displayed
> here.
>
> Is this possible? If yes, how?

You could build up separate strings, and then concatenate them  
manually, I suppose.  Otherwise, I think you''d have to remodel the  
whole thing as resources.

-- 
You can''t build a reputation on what you are going to do.
     -- Henry Ford
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Luke Kanies | http://reductivelabs.com | http://madstop.com