dashboard: fix add port permissions

closes #437

circle/dashboard/templates/dashboard/vm-detail/_network-port-add.html

@@ -13,7 +13,7 @@
       <select class="form-control" name="proto" style="width: 70px;"><option>tcp</option><option>udp</option></select>
       <div class="input-group-btn">
         <button type="submit" class="btn btn-success btn-sm
-          {% if not is_operator %}disabled{% endif %}">
+          {% if not op.add_port %}disabled{% endif %}">
           <span class="hidden-xs">{% trans "Add" %}</span>
           <span class="visible-xs"><i class="fa fa-plus-circle"></i></span>
         </button>

circle/vm/operations.py

@@ -647,6 +647,7 @@ class AddPortOperation(InstanceOperation):
     name = _("open port")
     description = _("Open the specified port.")
     concurrency_check = False
+    acl_level = "operator"
     required_perms = ('vm.config_ports', )
 
     def _operation(self, activity, host, proto, port):