My use-case for this is a dual-homed Foreman install with different DNS domains on either side and currently no ability to resolve Foreman's hostname with views.

there is a foreman_url setting directive, that might work (but globally).

isn't a better solution would be to use dns aliases?

That works for most setups, but what about where you have no access to the DNS? Or where DNS is almost non-existant (think libvirt + dnsmasq) ?

I think this could be solved by the template proxy feature (#969).

Argh, that was already in the list of related features. I should read more.

We are highly interested in a fix here. We have pretty complex network structure where some areas are completely firewalled off from central Foreman (Satellite6 in our case) server, but have access to local Capsule. Some areas also lack DNS completely, so we need to be able to provide IP Addresses for the installation up to the point where we can run a %pre script in kickstart to add some hard coded /etc/hosts entries.

Is there any way the linked Bugzilla can be opened up a bit? Or some anonymised details copied in here so that progress can be viewed? I have no access to the view the Bugzilla.

I have written an extensive post in https://bugzilla.redhat.com/show_bug.cgi?id=1307107 and made it public. Several workarounds are described there.