Dockerfile

FROM ubuntu:20.04

ARG DEBIAN_FRONTEND=noninteractive

RUN apt-get update && \
    apt-get install -y libnet-ssleay-perl libauthen-pam-perl libio-pty-perl python python3 python3-pip wget libxml-parser-perl && \
    rm -rf /tmp/* /var/lib/apt/lists/* /var/tmp/*

# apt-show-versions
RUN rm /etc/apt/apt.conf.d/docker-gzip-indexes && \
    apt-get purge apt-show-versions && \
    rm -f /var/lib/apt/lists/*lz4 && \
    apt-get -o Acquire::GzipIndexes=false update && \
    apt-get install apt-show-versions -y

RUN pip3 install requests && \
    wget https://netcologne.dl.sourceforge.net/project/webadmin/webmin/1.900/webmin_1.900_all.deb && \
    dpkg -i webmin_1.900_all.deb && \
    apt-get --fix-broken install -f -y && \
    /usr/share/webmin/changepass.pl /etc/webmin/ root admin && \
    sed --in-place s/passwd_mode=.*/passwd_mode=2/1 /etc/webmin/miniserv.conf

EXPOSE 10000

CMD /etc/webmin/start && /bin/bash