Update Dockerfile

Dockerfile

@@ -14,18 +14,27 @@ RUN pip install --no-cache-dir --upgrade pip
 RUN pip install --no-cache-dir -r requirements.txt
 
 # Set environment variables for Hugging Face
-ENV TRANSFORMERS_CACHE=/tmp/transformers_cache
 ENV HF_HOME=/tmp/hf_cache
 ENV TOKENIZERS_PARALLELISM=false
 
-# Create cache directories
-RUN mkdir -p /tmp/transformers_cache /tmp/hf_cache
+# Create cache directories and make them writable by any user
+RUN mkdir -p /tmp/hf_cache && chmod -R 777 /tmp/hf_cache
+
+# Create a non-root user (HF Spaces convention)
+RUN useradd -m -u 1000 user
+ENV HOME=/home/user
 
 # Copy application code
 COPY app.py .
 
+# Make sure the non-root user owns the app directory
+RUN chown -R user:user /app
+
+USER user
+
 # Expose port 7860 for Hugging Face Spaces
 EXPOSE 7860
 
-# Run the Flask app
-CMD ["python", "app.py"]
+# Run with gunicorn: single worker (model is loaded once, in-process;
+# multiple workers would each load their own copy of the model into memory)
+CMD ["gunicorn", "--bind", "0.0.0.0:7860", "--workers", "1", "--threads", "4", "--timeout", "120", "app:app"]