merge master branch (for the new command when the master leaved)

src/communication.py

@@ -97,8 +97,14 @@ class ClusterCommunicationModule():
             self.client_sock.send(f'[STOP_CHECK]  {json.dumps(data)}'.encode())
             self.node_manager.docker_client.swarm.leave()
             self.node_manager.status = 'none'
+            self.node_manager.actions = [
+                {'explanation': 'Add another node into our cluster', 'function': 'add_node'},
+                {'explanation': 'Exit', 'function': 'exit'},
+            ]
 
             print("You have leaved the cluster.")
+            print("Please Enter to continued")
+
             return False
         elif command == '[START_LISTEN_TASK]':
             self.client_sock.send('[START_LISTEN_TASK_CHECK]  {}'.encode())