Guy,
The example you have like..
class showap(
$amqp_host,
.....
)
Pattern is a "parameterized class" pattern.
it's so you could have a site/node.pp or an ENC provide the
parameters/values.
node yourserver {
class { 'showap' : amqp_host => 'TRUE'}
}
or if you wish, hiera will do automagic lookups of class parameters
https://docs.puppetlabs.com/hiera/1/puppet.html#automatic-parameter-lookup
i tend to keep the parameterized class pattern since its fairly portable,
works with hiera & enc's and once you've seen it, it does't look so scary..
46 parameters is a lot, but not unheard of..
-byron
On Wednesday, December 17, 2014 2:02:24 PM UTC-6, guymatz wrote:
>
> Hi! I'm taking over someone's code and have found the following class
> signature - it's been abbreviated considerably; over 46 vars get used!!:
>
> class showapp (
> $amqp_host,
> $amqp_password,
> $amqp_port,
> $amqp_user,
> .
> .
> .
>
> $queue_service_host,
> $queue_service_port,
> $redis_host,
> $redis_port,
> )
> It looks like they thought that any hiera vars that were going to be used
> in the template needed to be defined in the class signature (this isn't
> right, is it?).
> these vars are defined in hiera and are needed to populate a template
> defined elsewhere in the class. I'd rather not have to define every var
> in my manifest, e.g.:
> $amqp_host = hiera(showapp::amqp_host)
>
> I think I'd rather have a hash defined in hiera that I can pull into my
> class with one call, e.g.:
> $showapp_data = hiera(showapp)
> then use as a hash, e.g.
> $showapp_data[amqp_host]
>
> Is that the way to go? Will it work? Is there a better way?
>
> If you're gotten this far, thank you, thank you, thank you!
>
> Guy
>
>
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