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Dan White |
at Aug 10, 2012 at 11:19 pm
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On Aug 10, 2012, at 6:11 PM, Denmat wrote:On 11/08/2012, at 7:27, Douglas Garstang wrote:On Fri, Aug 10, 2012 at 2:24 PM, llowder wrote:On Friday, August 10, 2012 3:52:42 PM UTC-5, Douglas wrote:On Fri, Aug 10, 2012 at 1:42 PM, llowder wrote:On Friday, August 10, 2012 3:28:33 PM UTC-5, Douglas wrote:So...
I was just reading the new puppet scoping documentation at
http://docs.puppetlabs.com/guides/scope_and_puppet.html.I don't get it. If I have this...
class web_server {
include common
include webserver
$my_role = "web_server"
}
Can I access the $my_role variable in the webserver class?
If you use: $web_server::my_role
This seems completely screwed to me. What if your in a general class,
one not necessarily related to the function of a web server (but still
included from a web server), and you need to access the role?
Then use the fully qualified variable name as I mentioned in my last post.
What if the class I am in doesn't KNOW that the parent is $web_server ...?
Doug.
What if you've declared my_role in several classes? This provides certainty. Alternatively you could make a fact that has the value you want of my_role and reference that in the top scope $::my_role.
It is called: "Making an honest attempt to help you avoid shooting your own toes off".
By forcing you to specifically reference the class name along with the variable name (that includes the top scope $::foo), it saves you extensive grief down the road when you eventually end up with the same variable name in multiple classes.
Or would you rather have to track all the variable names in all the classes you use (the ones you write yourself along with ones you pull from places like the Puppet Forge) to ensure unique variable names ?
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