If you want to update carputilsGUI and the underlying examples, stop the containers and delete the *nginx* and *carputilsgui_web_server* images. Then, pull the updates and restart the containers.
If you want to update carputilsGUI and the underlying examples, stop the containers and delete the *carputilsgui_app* and *carputilsgui_web_server* images. Then, pull the updates and restart the containers.