Hi Nan,
Thanks for the reply. I did start thinking about how I could use the
merge function to achieve what I wanted. I was messing around with
something like this (which obviously doesn't work because of the
inheritance order):
-----------------------
$hash = { 'msg' => { message => 'woof' } }
class base($more_hash = undef) {
if ($more_hash) {
$real_hash = merge($more_hash, $hash)
} else {
$real_hash = $hash
}
create_resources('notify', $real_hash)
}
class over inherits base {
$more_hash = { 'msg' => { message => 'meow' } }
}
class { 'base': }
class { 'over': }
------------------------
This question relates to my other post about a sysctl class. In my case
I'd like the create_resources call to always reside within class 'base'
as that would be a standard declaration on all nodes - and that's my
real problem. Class 'base' can't be in a standard list of declarations
if it's ever going to take a parameter and be configurable. I have yet
to find the perfect balance of common things to manage and
configurability ;-)
-Luke
On 11/05/12 18:29, Nan Liu wrote:
On Fri, May 11, 2012 at 3:57 AM, Luke Bigum<luke.bi...@lmax.com> wrote:
Hello,
Is it possible to override a resource that is created with the
create_resource function?
This manifest does not compile:
------------------
$hash = { 'msg' => { message => 'woof' } }
class base {
create_resources('notify', $hash)
}
class over inherits base {
Notify['msg'] { message => 'meow' }
}
class { 'base': }
class { 'over': }
-----------------
You can't declare both classes, but you can override resources in
class over, because we can merge hash values before calling create
resource.
The example here is obviously contrived, but I assume you have a
bigger hash you want to merge. The merge function comes from stdlib:
# don't inherit base we can create the resources here instead.
class over {
$local_setting = { 'msg' => { message => 'meow'} }
$newhash = merge($local_setting, $hash)
create_resource('notify', $newhash}
}
Thanks,
Nan
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luke.bi...@lmax.com | http://www.lmax.com
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