change nodejs to 18 and all install nglview

jupyterhub_config.py

@@ -10,6 +10,19 @@ c = get_config()  # noqa: F821
 # avoid having to rebuild the JupyterHub container every time we change a
 # configuration parameter.
 
+# from dockerspawner import DockerSpawner
+
+# class MyDockerSpawner(DockerSpawner):
+#     def start(self):
+#         # 启动父类的start方法
+#         self.user_options['environment']['JUPYTER_ENABLE_NBEXTENSIONS'] = 'true'
+#         self.user_options['cmd'] = [
+#             'bash',
+#             '-c',
+#             'pip install nglview jupyter_packaging -i http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com && jupyter nbextension enable nglview --py --sys-prefix && jupyter labextension install nglview-js-widgets && jupyter labextension install @jupyter-widgets/jupyterlab-manager && start-singleuser.sh'
+#         ]
+#         return super().start()
+        
 # Spawn single-user servers as Docker containers
 c.JupyterHub.spawner_class = "dockerspawner.DockerSpawner"