FROM python:3.12-slim AS builder
WORKDIR /build
COPY pyproject.toml README.md ./
COPY app ./app
RUN python -m pip install --no-cache-dir --prefix=/install .

FROM python:3.12-slim
ENV PYTHONUNBUFFERED=1 PYTHONDONTWRITEBYTECODE=1 PATH=/home/app/.local/bin:$PATH
RUN addgroup --system app && adduser --system --ingroup app --home /home/app app
COPY --from=builder /install /usr/local
COPY --chown=app:app app /service/app
WORKDIR /service
USER app
EXPOSE 8000
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 CMD ["python", "-c", "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/healthz', timeout=2)"]
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "1", "--no-access-log"]