In order to use native SSH keys (git cloning, pushing etc.) inside the container, and restrict SSH keys with a password (but keep them open for a while, without having to enter password every time), this appears like the best strategy: Create a single, shared SSH agent socket when the container boots. By pointing a global environment variable (`SSH_AUTH_SOCK`) to this static path, every terminal opened, and the JupyterLab Git UI extension itself, will all communicate with the exact same agent. ## 1. Update the `Dockerfile.md` We need to add a global environment variable so the Jupyter server and all future terminal sessions know where the socket is. Then, we start the agent right before Jupyter starts. Add this `ENV` declaration anywhere above `CMD` block: ```dockerfile # Define a static SSH agent socket path for the entire container ENV SSH_AUTH_SOCK=/tmp/ssh-agent.sock ``` Next, add the agent startup command to the very beginning of the `CMD` block (so it runs every time the container starts): ```dockerfile CMD source "$CONDA_ACTIVATE_PATH" "$JUPYTER_ENV_PATH"; \ # --- NEW: Start shared SSH agent --- echo "Starting SSH Agent..."; \ rm -f /tmp/ssh-agent.sock; \ ssh-agent -a /tmp/ssh-agent.sock; \ # ----------------------------------- jupyter lab --generate-config; \ # ... (rest of your startup script) ``` *Ensure `openssh-client` is in the `apt-get install` list at the top of the Dockerfile, though it is usually installed alongside `git` by default).* ## 2. Rebuild and Start Rebuild the Docker image and recreate the container: ```bash docker compose build docker compose up -d ``` ## 3. How to use it (The 8-Hour Unlock) Now, when logging into JupyterLab web interface: 1. Open a **Jupyter Terminal**. 2. Run the `ssh-add` command with the `-t` (lifetime) flag in seconds. For 8 hours (8 * 60 * 60 = 28800 seconds): ```bash ssh-add -t 28800 /root/.ssh/id_ed25519 ``` 3. It will prompt you for your passphrase **once**: ```text Enter passphrase for /root/.ssh/id_ed25519: Identity added: /root/.ssh/id_ed25519 (/root/.ssh/id_ed25519) Lifetime set to 28800 seconds ``` Summary * **The Git Extension works:** Because JupyterLab was started with `SSH_AUTH_SOCK=/tmp/ssh-agent.sock`, any buttons you click in the JupyterLab Git UI extension will automatically use the unlocked key. * **All Terminals share it:** You can open 5 different terminal tabs in Jupyter, and they will all share the unlocked key. You don't need to unlock it per-tab. * **Security:** After 8 hours, the agent automatically "forgets" the decrypted key, requiring the passphrase again. If you stop/restart the container, the memory is wiped entirely. To make this even easier for your users, you can add an alias to their `.bashrc` within the `Dockerfile` so they don't have to remember the exact command: ```dockerfile RUN echo "alias unlock-git='ssh-add -t 28800 /root/.ssh/id_ed25519'" >> /root/.bashrc ``` Now, whenever a user opens a terminal, they just type `unlock-git`, enter their password once, and they are good for the entire workday!