Export compute node network

Accessible by calling module.nodes.network
 will return a map which key is node name and its network info

nodes/main.tf

@@ -38,3 +38,7 @@ resource "openstack_compute_instance_v2" "compute" {
 output "id" {
   value = openstack_compute_instance_v2.compute.*.id
 }
+
+output "network" {
+  value = zipmap(openstack_compute_instance_v2.compute.*.name, openstack_compute_instance_v2.compute.*.network)
+}