FROM python:3.9 AS builder

WORKDIR /wheels

# Update pip & build the wheels
COPY ./setup.cfg ./
RUN pip wheel -e .


FROM python:3.9-slim

# Switch to non-root user
RUN groupadd -r runner && \
    useradd -mrg runner runner

# Install the generated wheels
COPY --from=builder /wheels /wheels
RUN pip install \
        --no-cache-dir \
        --no-warn-script-location \
        -f /wheels \
        -e /wheels && \
    rm -rf /wheels

# Switch to non-root user
USER runner

# Copy source files
WORKDIR /usr/src/app
COPY --chown=runner:runner ./app ./app
COPY --chown=runner:runner setup.cfg setup.py ./

ENTRYPOINT ["python"]
CMD ["app"]