1. Proposed title of this feature request

customers would like to configure and customize the oauth server cluster instances that today are managed by operator.

2. What is the nature and description of the request?

it's more or less described here:

https://github.com/openshift/enhancements/pull/343
but it seems it has never been accepted as a valid enhancement.

3. Why does the customer need this? (List the business requirements here)

Particularly, customer would like to set a redirect url at signing out.