Dockerfile

FROM ubuntu

ENV DEBIAN_FRONTEND=noninteractive

RUN set -xe \
    && apt-get update \
    && apt-get install -y --no-install-recommends ca-certificates curl socat \
    && apt-get install -y --no-install-recommends xvfb x11vnc fluxbox xterm \
    && apt-get install -y --no-install-recommends sudo \
    && apt-get install -y --no-install-recommends supervisor \
    && rm -rf /var/lib/apt/lists/*

RUN set -xe \
    && curl -fsSL https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - \
    && echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" > /etc/apt/sources.list.d/google-chrome.list \
    && apt-get update \
    && apt-get install -y google-chrome-stable \
    && rm -rf /var/lib/apt/lists/*

#========================================
# Add normal user with passwordless sudo
#========================================
RUN set -xe \
    && useradd -u 1000 -g 100 -G sudo --shell /bin/bash --no-create-home --home-dir /tmp user \
    && echo 'ALL ALL = (ALL:ALL) NOPASSWD: ALL' >> /etc/sudoers

COPY supervisord.conf /etc/
COPY entry.sh /

User user
WORKDIR /tmp
VOLUME /tmp/chrome-data

CMD ["/entry.sh"]