Update Dockerfile

Dockerfile

@@ -1,19 +1,39 @@
-FROM python:3.10-slim
+# Use a slim Python base image
+FROM python:3.9-slim
+
+# Install system build deps (adjust if you know you don't need them)
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+        build-essential \
+        gcc \
+        libgomp1 \
+        git && \
+    rm -rf /var/lib/apt/lists/*
+
+# Prevent Python from writing .pyc files and enable unbuffered logging
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1
 
 WORKDIR /app
 
-# Install system-level dependencies for audio processing
-RUN apt-get update && apt-get install -y ffmpeg git && rm -rf /var/lib/apt/lists/*
+# Copy only requirements first to leverage Docker cache
+COPY requirements.txt /app/requirements.txt
+
+# Install Python packages globally (as root)
+RUN pip install --no-cache-dir --upgrade pip && \
+    pip install --no-cache-dir -r /app/requirements.txt
 
-# Install Python dependencies
-COPY requirements.txt .
-RUN pip install --no-cache-dir -r requirements.txt
+# Create a non-root user and switch to it
+RUN useradd -m -u 1000 user
+USER user
+ENV PATH="/home/user/.local/bin:$PATH"
 
-# Copy the app code
-COPY . .
+# Copy application code as the non-root user
+COPY --chown=user:root . /app
 
-# Expose the port expected by Hugging Face Spaces
+# Expose the port expected by Hugging Face Spaces (7860)
 EXPOSE 7860
 
-# Start the Flask app on port 7860
-CMD ["python", "main.py"]
+# Run uvicorn pointing at the FastAPI app defined in `main.py` (module:main, variable:app)
+# Use a reasonable timeout for long uploads and keep 1 worker (models are heavy)
+CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860", "--workers", "1", "--timeout-keep-alive", "120"]