[Pdns-users] How to switch between two different "zone" files for the same domain?

[Lucky Green]

Hi there,

How do I quickly switch between two different configurations for the
same domain? In bind, I would just keep two separate zone files for the
same domain, rename the one of the two zone file that I want to be
active to be the active zone file for the domain, and reload bind. How
is this done in PDNS?

Use case:
I have a primary colo site for my ESXi host and a DR site with a second
ESXi host that keeps current, but powered down, copies of the guests.

The guests are my individual host names in the domain. Of course the IP
addresses of the guests will be different between the primary and the DR
site.

When I need to fail over from the primary site to the DR site, I want to
quickly tell PDNS to now please serve an alternate set of IP addresses
for the same host names.

(I am perfectly fine with this being a manual process. I suspect that
there exists a fancy way accomplishing a similar goal using LUA records
that exceeds the level of complexity that I am looking for).

I suspect that this is a FAQ; I am probably just not using the right
search terms.

Thanks!
--Lucky