Update Dockerfile

Dockerfile

@@ -20,7 +20,7 @@ RUN pip install flask-cors
 
 # Copy the file creation and application startup scripts
 COPY --chown=user start.sh start.sh
-COPY --chown=user create_large_file.py create_large_file.py
+COPY --chown=user functions.py functions.py
 COPY --chown=user app.py app.py
 
 # Grant execute permission to the start script