Dockerfile

# Use Python 3.11 slim image for faster startup
FROM python:3.11-slim

# Install system dependencies
RUN apt-get update && apt-get install -y \
    git \
    ffmpeg \
    libsndfile1 \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Create a non-root user
RUN useradd --create-home --shell /bin/bash appuser

# Set working directory
WORKDIR /app

# Create cache directory for Hugging Face Hub with proper permissions
RUN mkdir -p /app/.cache && \
    chown -R appuser:appuser /app/.cache && \
    chmod -R 755 /app/.cache

# Create temp directory with proper permissions
RUN mkdir -p /tmp && \
    chown -R appuser:appuser /tmp && \
    chmod -R 755 /tmp

# Set environment variables for Hugging Face Hub
ENV HF_HOME=/app/.cache
ENV HF_DATASETS_CACHE=/app/.cache/datasets
ENV HF_HUB_CACHE=/app/.cache/hub

# Copy requirements first for better caching
COPY requirements.txt .

# Install Python dependencies
RUN pip install --upgrade pip && \
    pip install -r requirements.txt

# Copy application code
COPY main.py .

# Change ownership of the app directory
RUN chown -R appuser:appuser /app

# Switch to non-root user
USER appuser

# Expose port
EXPOSE 8000

# Health check
HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:8000/health || exit 1

# Run the application
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8000"]