Update Dockerfile

Dockerfile

@@ -11,13 +11,23 @@ RUN apt-get update && apt-get install -y \
 
 WORKDIR /code
 
-COPY ./requirements.txt /code/requirements.txt
+# Create a non-root user to run the application
+RUN useradd -m appuser
+
+# Create directories with appropriate permissions
+RUN mkdir -p /code/output && \
+    chown -R appuser:appuser /code
+
+COPY --chown=appuser:appuser ./requirements.txt /code/requirements.txt
 RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
 
 # For headless matplotlib
 ENV MPLBACKEND=Agg
 
-COPY . /code/
+COPY --chown=appuser:appuser . /code/
+
+# Switch to the non-root user
+USER appuser
 
 # Make sure the app.py file is correctly named
 CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]