start_server.sh

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

# Download notebook from URL if provided
if [ -n "$NOTEBOOK_URL" ]; then
    # Extract filename from URL
    FILENAME=$(basename "$NOTEBOOK_URL")
    
    # Handle GitHub raw URLs
    if [[ "$NOTEBOOK_URL" == *"github.com"* && "$NOTEBOOK_URL" != *"raw.githubusercontent.com"* ]]; then
        # Convert GitHub URL to raw URL
        RAW_URL=$(echo "$NOTEBOOK_URL" | sed 's|github.com|raw.githubusercontent.com|' | sed 's|/blob/|/|')
        wget -O "$NOTEBOOK_DIR/$FILENAME" "$RAW_URL"
    else
        wget -O "$NOTEBOOK_DIR/$FILENAME" "$NOTEBOOK_URL"
    fi
    
    echo "Downloaded notebook: $FILENAME"
else
    echo "No NOTEBOOK_URL provided. Using existing notebooks in the repository."
fi

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