FROM python:3.10-slim

WORKDIR /app

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

COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

COPY . .

EXPOSE 3000
CMD ["gunicorn", "-b", "0.0.0.0:3000", "app:app"]