Dockerfile

# Use a newer PyTorch image that matches chatterbox-tts requirements
FROM pytorch/pytorch:2.6.0-cuda12.4-cudnn9-runtime

# Set environment variables
ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    PORT=7860

# Set the working directory in the container
WORKDIR /app

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

# Install Python dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

# Create a non-root user and switch to it
RUN useradd -m -u 1000 user
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH

WORKDIR /app

# Create output directory and set permissions before switching user
RUN mkdir -p /app/outputs && chown user:user /app/outputs

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

USER user

# Pre-download the model weights during build time
RUN python download_model.py

# Expose the port (Hugging Face Spaces expects 7860)
EXPOSE 7860

# Command to run the application
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]