Support for "usage" for "Cloud" nodes. Fixes https://github.com/GNS3/gns3-gui/issues/2887

Allow "usage" for all builtin nodes (not exposed in Ui).

gns3server/compute/builtin/nodes/cloud.py

@@ -85,6 +85,7 @@ class Cloud(BaseNode):
                                     "special": interface["special"]})
 
         return {"name": self.name,
+                "usage": self.usage,
                 "node_id": self.id,
                 "project_id": self.project.id,
                 "remote_console_host": self.remote_console_host,

gns3server/compute/builtin/nodes/ethernet_hub.py

@@ -41,6 +41,7 @@ class EthernetHub(BaseNode):
     def __json__(self):
 
         return {"name": self.name,
+                "usage": self.usage,
                 "node_id": self.id,
                 "project_id": self.project.id}
 

gns3server/compute/builtin/nodes/ethernet_switch.py

@@ -41,6 +41,7 @@ class EthernetSwitch(BaseNode):
     def __json__(self):
 
         return {"name": self.name,
+                "usage": self.usage,
                 "node_id": self.id,
                 "project_id": self.project.id}
 

gns3server/compute/builtin/nodes/nat.py

@@ -75,6 +75,7 @@ class Nat(Cloud):
     def __json__(self):
         return {
             "name": self.name,
+            "usage": self.usage,
             "node_id": self.id,
             "project_id": self.project.id,
             "status": "started",