vm: refactor network interface methods

circle/vm/models/network.py

@@ -134,14 +134,14 @@ class Interface(Model):
         return iface
 
     def deploy(self):
-        net_tasks.create.apply_async(
-            args=[self.get_vmnetwork_desc()],
-            queue=self.instance.get_remote_queue_name('net'))
+        queue_name = self.instance.get_remote_queue_name('net')
+        return net_tasks.create.apply_async(args=[self.get_vmnetwork_desc()],
+                                            queue=queue_name).get()
 
     def shutdown(self):
         queue_name = self.instance.get_remote_queue_name('net')
-        net_tasks.destroy.apply_async(args=[self.get_vmnetwork_desc()],
-                                      queue=queue_name)
+        return net_tasks.destroy.apply_async(args=[self.get_vmnetwork_desc()],
+                                             queue=queue_name).get()
 
     def destroy(self):
         self.shutdown()