deep-learning-tools2: X was found in both NotebookApp and ServerApp

[frafra]

I built https://github.com/UNINETTSigma2/helm-charts-dockerfiles/blob/0fbf527ad655238877c1ad633fce7cb370671a3e/deep-learning-tools2/Dockerfile and run it on my workstation; I have encountered this error: ... was found in both NotebookApp and ServerApp.

[W 2022-03-03 13:06:49.109 LabApp] 'config_file' was found in both NotebookApp and ServerApp. This is likely a recent change. This config will only be set in NotebookApp. Please check if you should also config these traits in ServerApp for your purpose.
[W 2022-03-03 13:06:49.109 LabApp] 'ip' has moved from NotebookApp to ServerApp. This config will be passed to ServerApp. Be sure to update your config before our next release.
[W 2022-03-03 13:06:49.109 LabApp] 'ip' has moved from NotebookApp to ServerApp. This config will be passed to ServerApp. Be sure to update your config before our next release.
[W 2022-03-03 13:06:49.109 LabApp] 'quit_button' was found in both NotebookApp and ServerApp. This is likely a recent change. This config will only be set in NotebookApp. Please check if you should also config these traits in ServerApp for your purpose.
[W 2022-03-03 13:06:49.109 LabApp] 'port' has moved from NotebookApp to ServerApp. This config will be passed to ServerApp. Be sure to update your config before our next release.
[W 2022-03-03 13:06:49.109 LabApp] 'base_url' has moved from NotebookApp to ServerApp. This config will be passed to ServerApp. Be sure to update your config before our next release.
[W 2022-03-03 13:06:49.109 LabApp] 'trust_xheaders' has moved from NotebookApp to ServerApp. This config will be passed to ServerApp. Be sure to update your config before our next release.
[W 2022-03-03 13:06:49.109 LabApp] 'tornado_settings' has moved from NotebookApp to ServerApp. This config will be passed to ServerApp. Be sure to update your config before our next release.
[W 2022-03-03 13:06:49.109 LabApp] 'notebook_dir' has moved from NotebookApp to ServerApp. This config will be passed to ServerApp. Be sure to update your config before our next release.
[W 2022-03-03 13:06:49.110 LabApp] 'allow_origin' has moved from NotebookApp to ServerApp. This config will be passed to ServerApp. Be sure to update your config before our next release.
[W 2022-03-03 13:06:49.110 LabApp] 'allow_remote_access' has moved from NotebookApp to ServerApp. This config will be passed to ServerApp. Be sure to update your config before our next release.
[W 2022-03-03 13:06:49.110 LabApp] 'allow_remote_access' has moved from NotebookApp to ServerApp. This config will be passed to ServerApp. Be sure to update your config before our next release.

This kind of warning appears for config_file, ip, quit_button, base_url, trust_xheaders, notebook_dir, allow_origin, and allow_remote_access.