Update Dockerfile

Dockerfile

@@ -1,17 +1,23 @@
-# read the doc: https://huggingface.co/docs/hub/spaces-sdks-docker
-# you will also find guides on how best to write your Dockerfile
-
+# Base image
 FROM python:3.9
 
-WORKDIR /code
+# Set a non-root user
+RUN useradd -m appuser
+USER appuser
 
-COPY ./requirements.txt /code/requirements.txt
+# Set working directory
+WORKDIR /code
 
+# Copy requirements file and install dependencies
+COPY --chown=appuser ./requirements.txt /code/requirements.txt
 RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt
 
+# Create storage directory with proper permissions
 RUN mkdir -p /storage
-RUN chmod 777 /storage
+RUN chown appuser:appuser /storage
 
-COPY . .
+# Copy application code
+COPY --chown=appuser . /code
 
-CMD ["streamlit", "run", "streamlit_app.py", "--server.port", "7860"]
+# Set the command to run the app
+CMD ["streamlit", "run", "streamlit_app.py", "--server.port", "7860"]