start_server.sh

#!/bin/bash
JUPYTER_TOKEN="${JUPYTER_TOKEN:=huggingface}"

# Define directories
NOTEBOOK_DIR="/data"
ORIGINAL_NOTEBOOKS="/home/user/app/notebooks"  # This is the correct path where notebooks are located

echo "Starting notebook setup process..."
echo "Looking for notebooks in: $ORIGINAL_NOTEBOOKS"

# List all notebook files in the source directory
find "$ORIGINAL_NOTEBOOKS" -name "*.ipynb" -type f 2>/dev/null || echo "Cannot find notebooks in $ORIGINAL_NOTEBOOKS"

# Check if we can find the notebooks
if ls "$ORIGINAL_NOTEBOOKS"/*.ipynb 1> /dev/null 2>&1; then
    echo "Found notebooks in $ORIGINAL_NOTEBOOKS"
    
    # Clear the notebook directory and copy fresh notebooks for this session
    echo "Preparing fresh notebooks for this session..."
    mkdir -p "$NOTEBOOK_DIR"
    rm -f "$NOTEBOOK_DIR"/*.ipynb
    
    # Copy notebooks to data directory
    cp -v "$ORIGINAL_NOTEBOOKS"/*.ipynb "$NOTEBOOK_DIR/" || echo "Failed to copy notebooks"
    
    # Set proper permissions
    chmod -R 755 "$NOTEBOOK_DIR"
    chown -R $(whoami) "$NOTEBOOK_DIR" 2>/dev/null || echo "Could not change ownership"
else
    echo "No notebooks found in expected location. Checking all directories..."
    find / -name "*.ipynb" -not -path "*/\.*" 2>/dev/null | head -20
fi

# Show what we've got
echo "Contents of notebook directory ($NOTEBOOK_DIR):"
ls -la "$NOTEBOOK_DIR"

# Start JupyterLab
echo "Starting JupyterLab..."
jupyter labextension disable "@jupyterlab/apputils-extension:announcements"

jupyter-lab \
    --ip 0.0.0.0 \
    --port 7860 \
    --no-browser \
    --allow-root \
    --ServerApp.token="$JUPYTER_TOKEN" \
    --ServerApp.tornado_settings="{'headers': {'Content-Security-Policy': 'frame-ancestors *'}}" \
    --ServerApp.cookie_options="{'SameSite': 'None', 'Secure': True}" \
    --ServerApp.disable_check_xsrf=True \
    --LabApp.news_url=None \
    --LabApp.check_for_updates_class="jupyterlab.NeverCheckForUpdate" \
    --notebook-dir=$NOTEBOOK_DIR