FROM python:3.13.4-slim

ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

WORKDIR /app

RUN pip install --no-cache-dir \
    "Django==5.2.3" \
    "djangorestframework==3.16.0" \
    "gunicorn==23.0.0" \
    "psycopg[binary]==3.2.9"

RUN useradd --create-home --shell /usr/sbin/nologin appuser

COPY placeholder_wsgi.py /app/placeholder_wsgi.py

USER appuser

EXPOSE 8000

CMD ["gunicorn", "--bind", "0.0.0.0:8000", "placeholder_wsgi:application"]