Inventory: Extract custom fields as host_vars (#159)

Author: DouglasHeriot

plugins/inventory/nb_inventory.py

@@ -300,6 +300,7 @@ def group_extractors(self):
             "config_context": self.extract_config_context,
             "manufacturers": self.extract_manufacturer,
             "interfaces": self.extract_interfaces,
+            "custom_fields": self.extract_custom_fields,
         }
 
     def extract_disk(self, host):
@@ -455,6 +456,12 @@ def extract_interfaces(self, host):
         except Exception:
             return
 
+    def extract_custom_fields(self, host):
+        try:
+            return host["custom_fields"]
+        except Exception:
+            return
+
     def refresh_platforms_lookup(self):
         url = self.api_endpoint + "/api/dcim/platforms/?limit=0"
         platforms = self.get_resource_list(api_url=url)