Custom function that requires a Ruby library module
Dirk Heinrichs
Hi,
I’m trying to write a custom function to get the primary group of a given user. The following works in plain Ruby:
def primary_group_of(user:)
require 'etc'
return Etc.getgrgid(Etc.getpwnam(user).gid).name
end
puts primary_group_of(user: 'username' )
Translated into a Puppet function, it looks like:
Puppet::Functions.create_function(:'mylib::primary_group_of') do
dispatch :primary_group_of do
param 'String', :user
end
def primary_group_of(user)
require 'etc'
return Etc.getgrgid(Etc.getpwnam(user).gid).name
end
end
But this, when executed from within a simple file resource like this
class testing {
file { '/tmp/test':
content => 'foo',
owner => 'username',
group => mylib::primary_group_of('username'),
}
}
Only yields: “…Error while evaluating a Function Call, undefined method `gid' for nil:NilClass…”
Any hints as to what could be wrong here? Seems it doesn’t do the “require”, but I’m not sure. Documentation doesn’t say anything about using Ruby library modules.
Thanks…
Dirk
Dirk Heinrichs
Senior Systems Engineer, Delivery Pipeline
OpenText ™ Discovery | Recommind
Email: dhei...@opentext.com
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Andreas Zuber
evaluated there and never on the agent.
Regards
Andreas
> Senior Systems Engineer, Delivery Pipeline
>
> OpenText ™ Discovery | Recommind
>
>
> *Website*: www.recommind.de <http://www.recommind.de/>
> Recommind GmbH, Von-Liebig-Straße 1, 53359 Rheinbach
>
> Vertretungsberechtigte Geschäftsführer John Marshall Doolittle, Gordon
> Davies, Roger Illing, Registergericht Amtsgericht Bonn, Registernummer
> HRB 10646
>
> This e-mail may contain confidential and/or privileged information. If
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Dirk Heinrichs
> Is this user on the Puppet server/master? Because Puppet functions are evaluated there
> and never on the agent.
Thanks for the hint.
Bye...
Dirk