Probably use a class parameter. You're gonna want something like this, I
think:
class base ($kind = "normal") {
$mpmtype = $kind ? {
'special' => 'prefork',
default => 'worker',
}
class {'apache': mpm => $mpmtype }
}
On your normal nodes, you'd just "include base" or "class {'base':}", and
on your special nodes, you'd "class {'base': kind => 'special'}".
See?
Best practice is to try and present a clean interface with your wrapper
classes -- that means instead of exposing every knob you might twiddle as a
class parameter, settle on a limited number of roles (like that "kind"
parameter I was showing), and then use logic inside the class to change any
of the relevant bits in the way that node type needs.
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