Dockerfile

FROM python:3.11-slim AS builder

WORKDIR /app

# Install build dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc libpq-dev \
    && rm -rf /var/lib/apt/lists/*

# Install Python dependencies
COPY requirements.txt .
# Install torch with CUDA support first to prevent sentence-transformers
# from pulling the CPU-only torch wheel from PyPI
RUN pip install --no-cache-dir torch --index-url https://download.pytorch.org/whl/cu124
RUN pip install --no-cache-dir -r requirements.txt


FROM python:3.11-slim

WORKDIR /app

# Runtime system deps (libpq5 for psycopg2, no gcc/build tools)
RUN apt-get update && apt-get install -y --no-install-recommends \
    libpq5 \
    ffmpeg \
    ca-certificates \
    && rm -rf /var/lib/apt/lists/*

# Copy Python packages from builder
COPY --from=builder /usr/local/lib/python3.11/site-packages/ /usr/local/lib/python3.11/site-packages/
COPY --from=builder /usr/local/bin/ /usr/local/bin/

# Copy application code (model checkpoints excluded via .dockerignore)
COPY src/ ./src/
COPY docker-entrypoint.sh /docker-entrypoint.sh
RUN chmod +x /docker-entrypoint.sh

ENV PYTHONPATH=/app/src
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1
ENV HF_ENDPOINT=https://hf-mirror.com

EXPOSE 8000

ENTRYPOINT ["/docker-entrypoint.sh"]
CMD ["uvicorn", "controllers.main:app", "--host", "0.0.0.0", "--port", "8000", "--proxy-headers", "--forwarded-allow-ips", "*"]