On Jul 1, 2010, at 10:45 PM, Douglas Garstang wrote:
> On Thu, Jul 1, 2010 at 9:11 PM, Patrick Mohr <[email protected]> wrote:
>>
>> On Jul 1, 2010, at 9:05 PM, christopher floess wrote:
>>
>> Hey, this is sort of hijacking the thread, so if need be, please, I can
>> start another thread for it, but could someone explain the code from the OP
>> here. I feel like this is sort of the next step in puppet functionality that
>> I need to learn (I'm still new).
>>
>> I'll start by pointing out three things that tripped me up:
>>
>> 1. I've read about the difference between Package (capitalized), and package
>> (lowercase), but in practice I don't understand it.
>>
>> When declaring a resource, use the lowercase one. When referring to an
>> existing resource, use the uppercase one.
>>
>> 2. In the Package { require => Class['yum::client']}, why isn't there a
>> name?
>>
>> This says take care of the whole yum::client class before installing
>> any package. (Technically this is only almost true. There are exceptions.)
>
> Eeeek! What are the exceptions?
First, if you set a require on the resource using "=>" it overrides the global.
Use "+>" to add a require. I also remember hearing something about overriding
resources using inheritance, but I don't remember that.
Second, I assume, but I'm not sure, that declaring two dependencies like the
example below, overrides instead of stacking, but I'm not sure.
site.pp
Package {
require => Exec["global-package-setup"]
}
node 'test-node' {
include install-stuff-class
}
class install-stuff-class {
Package {
require => Exec["extra-package-setup"]
}
package { firefox:
ensure => present
}
}
In this example, I don't know if both execs are guaranteed to run before
firefox is installed.
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