Yep, thanks Patrick.
I've figure it out this way:
class dev_httpd {
class dev_httpd_def_php_pkgs inherits php_mod {
php_mod::php_mod_add {
"php-pgsql":
ensure => present,
type => "rpm";
}
class dev_httpd_preview_php_pkgs inherits dev_httpd_def_php_pkgs {
Php_mod::Php_mod_add['php-pgsql'] { ensure => absent }
}
}
then I include that on the node def like so:
node mel_default_preview inherits mel_default_web {
class { httpd: version => "2.2.3-43.el5.centos.3" }
class { php: version => "5.2.9-2" }
include dev_httpd::dev_httpd_def_php_conf
class { dev_httpd: }
include dev_httpd::dev_httpd_def_php_pkgs
}
node au-mel-preview-1 inherits mel_default_preview {
include dev_httpd::dev_httpd_preview_php_pkgs
}
That provides a bit of flexibility.
Thanks again for all your help.
Cheers
DenMat
On Sep 21, 4:36 pm, Patrick <[email protected]> wrote:
> On Sep 20, 2010, at 10:57 PM, denmat wrote:
>
> > Thanks for the swift response Patrick, however it hasn't worked. If I
> > declare it in one place, it complains of a duplicate.
>
> > I'm thinking what I'm trying to do is not possible.
>
> class base
> {
> package { "svn":
> ensure => installed,
> }
>
> }
>
> class remove_svn inherits base
> {
> #Look up overrides in
> #http://docs.reductivelabs.com/guides/language_tutorial.html#classes
> #This bit is the key
> Package["svn"] {
> ensure => absent,
> }
>
> }
>
> #Also important!
> include base
>
> node default
> {
> #Commenting and uncommenting this next line will install and
> uninstall the package.
> # include remove_svn
>
> }
>
> > On Sep 21, 1:14 pm, Patrick <[email protected]> wrote:
> >> On Sep 20, 2010, at 8:01 PM, denmat wrote:
>
> >>> Hi List,
>
> >>> I have two questions.
>
> >>> Firstly I want to be able to ensure a default package is installed
> >>> across all hosts unless I specifically require them to be absent.
>
> >>> To do this I have created a module(httpd) and class(php_mod) and
> >>> definition(php_mod_add) which I want to declare at the default node or
> >>> individual node level.
>
> >> I believe you can do this by putting the "ensure => installed" resource in
> >> a parent and have the child override it. Then you include the child when
> >> you want to remove the package. Then include the parent in your global
> >> section.
>
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