2010-09-15 16:51, R.I.Pienaar wrote:
> ----- "Thomas Bellman" <bell...@nsc.liu.se> wrote:
>
>> define pkg($app) {
>> $version = extlookup("pkg_${name}_${app}", "present")
>> package { $name: ensure => $version; }
>> }
>>
>> class app1 {
>> pkg { "needed-package": app => "app1"; } # Needs version
>> 10.17
>> }
>> class app2 {
>> pkg { "needed-package": app => "app2"; } # Needs version
>> 10.17
>> }
>> class app3 {
>> pkg { "needed-package": app => "app3"; } # Needs version
>> 10.23
>> }
>
> no, you just write pkg{"needed-package": } once, and then configure
> extlookup to give different hosts different versions.
Ah, I understand.
But then you instead need to maintain the mapping between which apps
are installed on which nodes in two places: your manifest files, where
you write include statements, and the extlookup data file. I'm not
Marc, so I don't know his exact circumstances, but to me it sounds messy
and not very maintainable. Unless you generate both from a common
data source... (And for this purpose, an external nodes tool would
probably count as "generating" the manifest.)
/Bellman
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