Previously keystone.host was pointing to the local controller_host
which would have caused all local services to become unavailable
if keystone was to go down.
Closes-Bug: #
1339986
Change-Id: I9b73595d3e0ae6e872aa6b7e0f93354ff04f2956
         keystone:
           db: mysql://keystone:unset@localhost/keystone
           host:
-            get_input: controller_host
+            get_input: controller_virtual_ip
           ca_certificate: {Ref: KeystoneCACertificate}
           signing_key: {Ref: KeystoneSigningKey}
           signing_certificate: {Ref: KeystoneSigningCertificate}