[Puppet Users] How to have init.pp in a module run some function whenever any class in the module is called.

[Dan Mahoney]

Hey all,

We have a simple adduser module, with an init.pp like so:

class adduser::config {
   case $facts['operatingsystem'] {
     'Debian': {
       $bash = '/bin/bash'
       $tcsh = '/bin/csh'
       $sh = '/bin/sh'
       $staffgid = '50'
       $wheelgroups = ['adm', 'sudo']
       $rootgroup = 'root'
     }
     default: {
       $bash = '/usr/local/bin/bash'
       $csh = '/bin/csh'
       $tcsh = '/bin/csh'
       $sh = '/bin/sh'
       $staffgid = '20'
       $wheelgroups = ['wheel']
       $rootgroup = 'wheel'
     }
   }
}

This code *was* in the main "adduser" class, but we found that when we 
called a user directly, it didn't run.

All our users have stanzas like this one:

class adduser::user_ray {
require adduser::config
  user { 'bob':
    ensure   => 'present',
    comment  => 'Bob User',
    gid      => $staffgid,
    home     => '/home/bob',
    password => '*',
    shell    => $tcsh,
    uid      => '20049',
    managehome => true
  }
}

Even with the direct require of adduser::config we still see errors like 
this in the puppetserver log:

2018-06-04 03:27:24,369 WARN  [qtp1220040994-783] [puppetserver] Puppet 
Unknown variable: 'tcsh'. at 
/usr/local/etc/puppet/code/environments/production/modules/adduser/manifests/init.pp:249:17
2018-06-04 03:27:24,377 WARN  [qtp1220040994-783] [puppetserver] Puppet 
Unknown variable: 'staffgid'. at 
/usr/local/etc/puppet/code/environments/production/modules/adduser/manifests/init.pp:460:17
2018-06-04 03:27:24,380 WARN  [qtp1220040994-783] [puppetserver] Puppet 
Unknown variable: 'wheelgroups'. at 
/usr/local/etc/puppet/code/environments/production/modules/adduser/manifests/init.pp:461:17
2018-06-04 03:27:24,382 WARN  [qtp1220040994-783] [puppetserver] Puppet 
Unknown variable: 'bash'. at 
/usr/local/etc/puppet/code/environments/production/modules/adduser/manifests/init.pp:464:17

What's the proper way to do this inheritance?  And the proper way to name 
variables so they scope right?

Thanks in advance,

-Dan 

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