Add Asset Tag to node label items (#712)

netbox_topology_views/choices.py

@@ -15,6 +15,7 @@ class NodeLabelItems(ChoiceSet):
     LOCATION = 'location'
     RACK = 'rack'
     VIRTUAL_CHASSIS = 'virtualchassis'
+    ASSET_TAG = 'assettag'
 
     CHOICES = [
         (DEVICE_NAME, 'Device Name'),
@@ -31,4 +32,5 @@ class NodeLabelItems(ChoiceSet):
         (LOCATION, 'Location'),
         (RACK, 'Rack'),
         (VIRTUAL_CHASSIS, 'Virtual Chassis'),
+        (ASSET_TAG, 'Asset Tag'),
     ]

netbox_topology_views/views.py

@@ -247,6 +247,7 @@ def create_node(
         NodeLabelItems.LOCATION: getattr(device, 'location', None), 
         NodeLabelItems.RACK: getattr(device, 'rack', None), 
         NodeLabelItems.VIRTUAL_CHASSIS: getattr(device, 'virtual_chassis', None), 
+        NodeLabelItems.ASSET_TAG: getattr(device, 'asset_tag', None),
     }
 
     label_items = []