Fix

Openstack/pv176-init.json

@@ -23,13 +23,13 @@
                     "type": "OS::Neutron::Port",
                     "properties": {
                         "name": "PV176-port-%index%",
+                        "network": ["pv176-net","network_name"],
                         "security_groups": [
                             "default",
                             {
                             "get_attr": ["pv176-net","network_security_group"]
                             }
-                        ],
-                        "network": "PV176-private-network"
+                        ]
                     }
                 }
             }

Openstack/pv176-network.template

@@ -65,7 +65,7 @@
     },
     "outputs":{
         "network_name":{
-            "value": { "get_attr": [internal_net] }
+            "value": { "get_attr": [internal_net,name] }
         },
         "network_subnet":{
             "value": { "get_attr": [internal_subnet] }