FROM docker.io/library/python:3.13-slim

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PYTHONPATH=/app

RUN pip install --no-cache-dir requests PyYAML

WORKDIR /app
COPY dns_sync /app/dns_sync
COPY entrypoint.sh /usr/local/bin/entrypoint.sh
RUN chmod 0755 /usr/local/bin/entrypoint.sh

ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]