On Fri, May 20, 2011 at 5:26 AM, Bilco105 <bilco...@gmail.com> wrote:
> Hi,
>
> I'm defining a class whose responsibility is to setup an application
> folder, virtual host, init script and so forth for a rails
> application. The class is defined as follows:
>
> class rails($name, $environment)
> ## Include General Software
> require nginx
> require mysql
>
> ## Setup application directories
> File { ["/home/$app", "/home/$app/app", "/home/$app/app/log", "/home/
> $app/app/tmp"]:
> ensure => directory
> owner => "root"
> group => "dev"
> mode => 4755
> }
>
> ## etc
> }
>
> Now, on our production servers, we have one application running, so we
> do:
>
> node "production.domain.com" {
> class { rails: name => "application1", env => "production" }
> }
>
> This works fine, and sets up all the requirements for the application.
> However, our staging server runs multiple applications, so I want to
> do the following:
>
> node "staging.domain.com" {
> class { rails: name => "application1", env => "production" }
> class { rails: name => "application2", env => "production" }
> class { rails: name => "application3", env => "production" }
> }
>
> Obviously this complains about duplicate definitions of the rails
> class, but the variables are different. How can I work around this? Or
> what is a better way to implement what I'm trying to do? without
> having to duplicate everything
>
>
Classes are singletons and you can only have one of them.
If you want to instantiate multiple instances, use a defined resource type
instead.
http://docs.puppetlabs.com/guides/language_guide.html#defined-resource-types
--
Nigel Kersten
Product, Puppet Labs
@nigelkersten
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