FROM ubuntu:18.04 MAINTAINER Ritu Sood COPY init.sh /opt/init.sh ENV PROTECTED_NET_GW "192.168.20.100" ENV UNPROTECTED_NET "192.168.10.0/24" RUN apt-get update && apt-get install -y -qq --no-install-recommends \ iproute2 darkstat EXPOSE 667 ENTRYPOINT ["/bin/bash"] CMD ["/opt/init.sh"]