daemon: revamp to align gre tunnels for distributed to align with changes, also moved gre tunnels for wired links to occur directly when linking, allowing runtime distributed functionality, also updates to phyical node to leverage a core node, but avoid using namespacing

daemon/tests/test_distributed.py

@@ -29,12 +29,14 @@ class TestDistributed:
 
         # when
         session.distributed.add_server(server_name, host)
+        node1 = session.add_node(HubNode)
         options = NodeOptions(server=server_name)
-        node = session.add_node(HubNode, options=options)
+        node2 = session.add_node(HubNode, options=options)
+        session.add_link(node1.id, node2.id)
         session.instantiate()
 
         # then
-        assert node.server is not None
-        assert node.server.name == server_name
-        assert node.server.host == host
-        assert len(session.distributed.tunnels) > 0
+        assert node2.server is not None
+        assert node2.server.name == server_name
+        assert node2.server.host == host
+        assert len(session.distributed.tunnels) == 1