Draft apiVIPs and ingressVIPs addition to ShiftStack optional install config params

Author: maxwelldb

modules/installation-configuration-parameters.adoc

@@ -1267,6 +1267,12 @@ An `affinity` policy prevents migrations, and therefore affects {rh-openstack} u
 If you use a strict `anti-affinity` policy, an additional {rh-openstack} host is required during instance migration.
 |A server group policy to apply to the machine pool. For example, `soft-affinity`.
 
+|platform:
+  openstack:
+    apiVIPs:
+|IP address on the machine network to assign to the API VIP. If multiple addresses are present, they must consist of exactly one IPv4 and one IPv6 address.
+|An array of strings. For example, [ "192.168.1.10", "2001:db8::10" ].
+
 |platform:
   openstack:
     clusterOSImage:
@@ -1334,6 +1340,12 @@ clusterOSImageProperties:
 |An existing floating IP address to associate with the Ingress port. To use this property, you must also define the `platform.openstack.externalNetwork` property.
 |An IP address, for example `128.0.0.1`.
 
+|platform:
+  openstack:
+    ingressVIPs:
+|An IP address or addresses on the machine network to assign to the ingress VIP. If multiple addresses are provided, they must consist of exactly one IPv4 and one IPv6 address.
+|An array of strings. For example, [ "192.168.1.11", "2001:db8::11" ].
+
 |platform:
   openstack:
     apiFloatingIP: