FROM debian:bullseye

USER root

# Install all packages
ENV DEBIAN_FRONTEND noninteractive
RUN apt-get update --yes && \
	apt-get upgrade --yes && \
	apt-get install --yes --no-install-recommends \
	bash \
	locales \
	iptables \
	dnsutils \
	&& \
	# Clean up and generate locales
	apt-get clean && rm -rf /var/lib/apt/lists/* && \
	echo "en_US.UTF-8 UTF-8" > /etc/locale.gen && \
	locale-gen


# Requires cap-add NET_ADMIN NET_RAW

EXPOSE 33
EXPOSE 993
EXPOSE 587

COPY start.sh /start.sh
COPY iptables.sh /iptables.sh

ENTRYPOINT ["bash"]
CMD ["/start.sh"]

