Merge branch '2.7' into fix_task_exchanger_executing_guard

Author: YuanTingHsieh

tests/integration_test/data/test_configs/authorization/shell_commands.yml

@@ -13,7 +13,7 @@ tests:
         "admin_user_name": "admin@a.org"
         "result":
           "type": "admin_api_response"
-          "data": "audit.log daemon_pid.fl local log.json log.txt log_error.txt pid.fl readme.txt startup transfer"
+          "data": "audit.log daemon_pid.fl local log.json log.txt log_error.txt pid.fl readme.txt signature.json startup transfer"
       - "trigger":
           "type": "server_log"
           "data": "Server started"
@@ -28,7 +28,7 @@ tests:
         "actions": [ "shell_commands ls site-1" ]
         "result":
           "type": "admin_api_response"
-          "data": "audit.log daemon_pid.fl local log.json log.txt log_error.txt pid.fl readme.txt startup transfer"
+          "data": "audit.log daemon_pid.fl local log.json log.txt log_error.txt pid.fl readme.txt signature.json startup transfer"
       - "trigger":
           "type": "server_log"
           "data": "Server started"