Adding rules to a policy while creating an iApp

Hi folks,

 

I'm facing the following problem and hope somebody can help me out:

 

We are using central Virtual Servers, which use a policy that will make a forwarding decision based on request host header and source ip using a datagroup. The outcome of a decision is forwarding to a different (non adressable) VIP. That's working fine.

 

Now here comes the tricky part....

 

I want to be able to publish a new webapp by using an iApp template i built myself. I'm able to set all parameters and variables, but when i try to modify the policy mentioned above to add a rule mentioning the host header, it will tell me that the policy already exists, even when i use tmsh::modify....

 

Is there any way i can do this without altering the policy by hand with every site we publish ?

 

Hope to hear from you !

 

Regards,

 

Rene