Update Dockerfile

Dockerfile

@@ -23,5 +23,6 @@ COPY --chown=user . $HOME/app
 RUN chmod 777 $HOME/app
 # Expose port 8080 for the Flask app
 EXPOSE 8080
+ENV FLASK_APP=$HOME/app/app.py
 # Set the entrypoint command to run the Flask app
-CMD ["python", "app.py"]
+CMD ["flask", "run", "--host=0.0.0.0"]