hosts: Add dns1.pyrocufflink.blue

To avoid having a single point of failure, a second recursive DNS server
is necessary. This will be useful in cases where the VM hosts must both
be taken offline, but Internet access is still required.

The new server, *dns1.pyrocufflink.blue*, has all the same zones defined
as the original. It forwards the *pyrocufflink.blue* zone and
corresponding reverse zones to the domain controllers, and acts as a
slave for the *pyrocufflink.red* zone.

host_vars/dns1.pyrocufflink.blue.yml

@@ -0,0 +1,9 @@
+pyrocufflink_red_zones:
+- zone: pyrocufflink.red
+  type: slave
+  masters:
+  - fd99:8cd7:6528:fe1e::4:1
+- zone: 1.31.172.in-addr.arpa
+  type: slave
+  masters:
+  - fd99:8cd7:6528:fe1e::4:1