adds ability to have hosts with no floating ips on terraform/openstack

contrib/terraform/openstack/variables.tf

@@ -6,10 +6,18 @@ variable "number_of_k8s_masters" {
   default = 2
 }
 
+variable "number_of_k8s_masters_no_floating_ip" {
+  default = 2
+}
+
 variable "number_of_k8s_nodes" {
   default = 1
 }
 
+variable "number_of_k8s_nodes_no_floating_ip" {
+  default = 1
+}
+
 variable "public_key_path" {
   description = "The path of the ssh pub key"
   default = "~/.ssh/id_rsa.pub"