FROM python:3.12-slim

WORKDIR /app

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

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

COPY . .

# Single worker avoids race condition during DB initialization.
# For a personal app this is fine; async handles concurrent requests well.
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]