[chef] Compile time order

Hi All,

I'm rather new Chef but already impressed with its power.
For my current Chef investigations I need some way to put recipe at the 
end of recipes list ignoring the real order of it in node's run_list.
I'm working on automated firewall configuration and now using attribute 
files of recipes to declare what ports this recipe needs to be opened. 
"Firewall" recipe then parses all ports at compile time and creates 
initial data for a template. But if I declare settings not in attribute 
file but in recipe itself (via node.default/node.set) - then this change 
is invisible to "firewall" recipe because it is already compiled. My 
thoughts were to have some callback at the end of compile time or a way 
of putting dynamically some code at the end of run_list (without saving 
it to node state) - so "firewall" recipe declared elsewhere could put 
callback and read the final attributes state.

Maybe there is some workaround to do this, or I need to change logic 
completely to fit to current Chef run model?

wbr,
Dmitry.