Dockerfile

FROM python:3.10-slim

# Install system dependencies
RUN apt-get update && \
    apt-get install -y --no-install-recommends \
    build-essential \
    git \
    sox \
    libsox-dev \
    libsndfile1 \
    && rm -rf /var/lib/apt/lists/*

# Create a non-root user
RUN useradd -m -u 1000 user
USER user
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH \
    PYTHONUNBUFFERED=1 \
    TOKENIZERS_PARALLELISM=false \
    FAIRSEQ2_EXTENSION_TRACE=1

WORKDIR $HOME/app

# Copy requirements first
COPY --chown=user requirements.txt .

# Install Python packages in the correct order
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir typing-extensions>=4.0.0 && \
    pip install --no-cache-dir numpy>=1.20.0 && \
    pip install --no-cache-dir -r requirements.txt

# Copy the rest of the application
COPY --chown=user . .

# Set environment variables
ENV HF_TOKEN=$HF_TOKEN
ENV PORT=7860

# Make port 7860 available (Hugging Face Spaces default)
EXPOSE 7860

# Command to run the application
CMD ["python", "app.py"]