Dockerfile

FROM ubuntu:focal-20231211 AS add-apt-repositories

RUN apt-get update  \
    && DEBIAN_FRONTEND=noninteractive apt-get install -y gnupg curl apt-transport-https apt-utils \
    # && apt-key adv --fetch-keys http://www.webmin.com/jcameron-key.asc \
    && apt-key adv --fetch-keys https://download.webmin.com/jcameron-key.asc \
    && echo "deb http://download.webmin.com/download/repository sarge contrib" >> /etc/apt/sources.list

FROM ubuntu:focal-20231211

LABEL maintainer="sameer@damagehead.com"

ENV BIND_USER=bind \
    BIND_VERSION=9.16.1 \
    WEBMIN_VERSION=2.105 \
    DATA_DIR=/data

COPY --from=add-apt-repositories /etc/apt/trusted.gpg /etc/apt/trusted.gpg

COPY --from=add-apt-repositories /etc/apt/sources.list /etc/apt/sources.list

RUN rm -rf /etc/apt/apt.conf.d/docker-gzip-indexes \
    && apt-get update \
    && DEBIAN_FRONTEND=noninteractive apt-get upgrade -y \
    && DEBIAN_FRONTEND=noninteractive apt-get install -y \
    bind9=1:${BIND_VERSION}* bind9-host=1:${BIND_VERSION}* dnsutils \
    webmin=${WEBMIN_VERSION}* \
    && apt-get autoremove \
    && apt-get autoclean \
    && apt-get clean \
    && rm -rf /var/lib/apt/lists/*


COPY entrypoint.sh /sbin/entrypoint.sh

RUN chmod 755 /sbin/entrypoint.sh

EXPOSE 53/udp 53/tcp 10000/tcp

ENTRYPOINT ["/sbin/entrypoint.sh"]

CMD ["/usr/sbin/named"]