FROM debian:bookworm-slim

RUN apt-get update && apt-get install -y --no-install-recommends \
    vsftpd \
    && rm -rf /var/lib/apt/lists/*

COPY conf/vsftpd.conf /etc/vsftpd.conf
COPY tools/entrypoint.sh /usr/local/bin/entrypoint.sh

RUN echo "/usr/sbin/nologin" >> /etc/shells \
    && chmod +x /usr/local/bin/entrypoint.sh

EXPOSE 21 21100-21110

ENTRYPOINT ["entrypoint.sh"]