FROM python:3.12-slim

RUN apt-get update \
    && apt-get install -y --no-install-recommends coreutils \
    && rm -rf /var/lib/apt/lists/*
RUN groupadd --gid 5001 sidecar \
    && useradd --uid 5001 --gid 5001 --create-home sidecar \
    && mkdir -p /opt/palantir/sidecars/shared-volumes/shared/requests \
    && chown -R 5001:5001 /opt/palantir/sidecars/shared-volumes/shared

COPY entrypoint.py /app/entrypoint.py
ENV SHARED_DIR=/opt/palantir/sidecars/shared-volumes/shared
USER 5001
ENTRYPOINT ["python", "-u", "/app/entrypoint.py", "--", "dd", "if=infile.csv", "of=outfile.csv"]