adding packages during jails creation

[Vijay Rajah]

Hello List,

I run all my services in my server in separate jails.. It works great..

The only thing is, on every jail, i would install a set of packages. 
(example: portmaster)

I have created flavour in ezjails to customize the jails.

But, How do I install packages form ports tree whenever, I create the 
jails?

-Thanks in Advance
Vijay