On Sat, Dec 18, 2010 at 6:09 PM, Daniel Pittman <dan...@rimspace.net> wrote:
> On Sun, Dec 19, 2010 at 08:24, Spenser Gilliland <spenser...@gmail.com> wrote:
>
>> I've come into a use case where I need a list of all the instances of
>> a definition. I'd like the syntax to be
>
> [...]
>
>> I'm not sure if this will work as anticipated. I believe that this
>> will only update $instance in the test::instance scope not the test
>> scope.
>
> That would be about the shape of it.
>
> [...]
>
>> Can anyone help me figure this out? It seems like this would be a
>> fairly common thing to do.
>
> I strongly suspect it is actually kind of "not the puppet way", at
> least at the moment. Can you tell us what the problem you are trying
> to solve is? That would make it easier to help identify the more
> canonical puppet way of doing whatever it is.
>
> My guess is that there isn't a nice way of doing it and that answer is
> going to be the "concat" module to build a file from little fragments,
> or use the Ruby DSL, or something: I guess you need to reference all
> those items in some other configuration file, and it doesn't provide a
> "include this glob" operation, right?
>
> Regards,
> Daniel
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>
Yeap, I'm seeing that it doesn't exist yet either. I'm thinking maybe
I can use exported resources or maybe just an exec that increments a
counter on the host. Either way it's not very pretty. My use case is
as follows:
In Debian, Redmine has the option of being installed as several
instances controlled by a single debconf variable. In order to
utilize this feature, I need to supply debconf with the name of all
instances of Redmine on the server. I've split this out into the
following way: A class called Redmine which installs the Redmine
package and should hold an array of all the instances of Redmine to
feed to debconf using the "responsefile" parameter.
So I think I've come up with a solution in my head but it involves me
guaranteeing that the redmine class is instantiated before any of the
redmine::instances are defined. Essentially, I'll use an
environmental variable or file and clear it with the Redmine class and
append to it for each redmine::instance. Maybe like below?
class redmine {
exec{"rm /tmp/instances && touch /tmp/instances"}
}
define redmine::instance
exec{"echo $name >> /tmp/instances"}
}
I guess the next question is can i guarantee that my class will be
instantiated prior to my instances and there is no possibility of the
class being re-instantiated during the course of the puppet run?
Thanks,
Spenser
--
Spenser Gilliland
Computer Engineer
Illinois Institute of Technology
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