automatically setup the production instance for the customer if he press a button of a rails application

gistfile1.txt

we have a "marketinginstance" & "our application ABC"

if any one purchase the application ABC from the marketing instance. automatically want to setup the rails application for them.

A - > purchase application

he choose a domain "railz"

then the task is that 

1.cp ABC ABC_railz;
2.add a host entry in apache  (sites_available)
     url : railz.ABC.com
     Document dir : /var/www/ABC_railz
then apache restart 

these tasks want to perform after the "marketing instance" button click . (set up my instance) <- Button