backend/Dockerfile

FROM python:3.12-slim

# Install system dependencies for OpenCV and pyttsx3/espeak
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    libgl1 \
    libglib2.0-0 \
    espeak \
    alsa-utils \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /workspace

# Copy and install python dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy backend code
COPY . .

# Download ONNX model weights during container build
RUN python app/core/download_models.py

# Expose FastAPI port
EXPOSE 8000

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