On Wed, Nov 16, 2016 at 10:42 AM, Albert Shih <albert.s...@obspm.fr> wrote:
> Le 16/11/2016 à 10:34:36+0100, Craig Dunn a écrit
>
> > # Tomcat class has an attribute called "catalina_home" which is looked
> up from
> > hiera data binding....
> > include ::tomcat
> >
> > class { "my_application":
> > tomcat_root => $::tomcat::catalina_home
> > }
>
> SUPER nice.....
>
> I didn't think about that....
>
> Don't know why but I always thought that was « bad practice » to access
> some attribute from outside the module.
>
Not at all - especially not when done from the profiles.
A module's attributes are effectively it's API - by accessing
$::tomcat::catalina_home you don't need to know or care if the value is
being set by hiera or by the modules default (params.pp), and it's the best
source of truth for that value. This is a very good example of the
benefits of profiles too.
Craig
--
Enviatics | Automation and Configuration Management
Puppet Labs Service Delivery Partner & Certified Consultant
http://www.enviatics.com | @Enviatics | cr...@enviatics.com
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