By default, TLJH configures two
systemd services to run JupyterHub and Traefik.
These services come with a default set of settings, which are specified in jupyterhub.service and traefik.service. They look like the following:
[Unit] Requires=traefik.service After=traefik.service [Service] User=root Restart=always WorkingDirectory=/opt/tljh/state PrivateTmp=yes PrivateDevices=yes ProtectKernelTunables=yes ProtectKernelModules=yes Environment=TLJH_INSTALL_PREFIX=/opt/tljh ExecStart=/opt/tljh/hub/bin/python3 -m jupyterhub.app -f jupyterhub_config.py --upgrade-db [Install] WantedBy=multi-user.target
However in some cases, admins might want to have better control on these settings.
For example when mounting shared volumes over the network using Samba, these namespacing settings might be a bit too strict and prevent users from accessing the shared volumes.
Overriding settings with
To override the
jupyterhub settings, it is possible to provide a custom
Here is an example for the content of the file:
[Service] PrivateTmp=no PrivateDevices=no ProtectKernelTunables=no ProtectKernelModules=no
This example should be useful in the case of mounting volumes using Samba and sharing them with the JupyterHub users. You might also want to provide your own options, which are listed in the systemd documentation.
Then make sure to reload the daemon and the
sudo systemctl daemon-reload sudo systemctl restart jupyterhub
Then check the status with:
sudo systemctl status jupyterhub
The output should look like the following:
To override the
traefik settings, create a new file under
and follow the same steps.
If you would like to learn more about the
systemd security features, check out these references: