Right i wanted to put an irule or policy on the VIP on the LTMs to redirect it from the gtm.domain.com name to the datacenter.domain.com name that it's expecting but keep the part of the URL that is wildcarded so that openshift would know where to send it.
DNS record currently *.datacenter.domain.com = VIP on LTM for openshift router with several applications hitting it.
DNS record desired for developers to use = theirapplication.gtm.domain.com
Route currently openshift is configured to recognize = theirapplication.datacenter.domain.com