terraform: generate conf with http backend

app/tfstate.py

@@ -24,6 +24,7 @@ def handle_update(key):
             return "OK", 200
         state = TerraformState(key=key)
     if state.lock and not (request.method == "UNLOCK" and request.args.get('ID') is None):
+        # force-unlock seems to not give an ID to verify so accept no ID being present
         if json.loads(state.lock)['ID'] != request.args.get('ID'):
             return Response(state.lock, status=409, content_type="application/json")
     if request.method == "POST":