sonic-buildimage/dockers/docker-base/Dockerfile.j2

FROM debian:jessie

## Clean documentation in FROM image
RUN find /usr/share/doc -depth \( -type f -o -type l \) ! -name copyright | xargs rm || true
## Clean doc directories that are empty or only contain empty directories
RUN while [ -n "$(find /usr/share/doc -depth -type d -empty -print -exec rmdir {} +)" ]; do :; done
RUN rm -rf               \
    /usr/share/man/*     \
    /usr/share/groff/*   \
    /usr/share/info/*    \
    /usr/share/lintian/* \
    /usr/share/linda/*   \
    /var/cache/man/*     \
    /usr/share/locale/*

## Make apt-get non-interactive
ENV DEBIAN_FRONTEND=noninteractive

## Configure data sources for apt/dpkg
COPY ["sources.list", "/etc/apt/sources.list"]
COPY ["dpkg_01_drop", "/etc/dpkg/dpkg.cfg.d/01_drop"]
RUN mkdir -p /var/cache/apt/archives && apt-get clean && apt-get update

## Pre-install fundamental packages
RUN apt-get -y install \
    rsyslog            \
    supervisor         \
    vim-tiny           \
    perl               \
    python             \
    less

COPY ["etc/rsyslog.conf", "/etc/rsyslog.conf"]
COPY ["etc/rsyslog.d/*", "/etc/rsyslog.d/"]
COPY ["root/.vimrc", "/root/.vimrc"]

RUN apt-get -y purge   \
    exim4              \
    exim4-base         \
    exim4-config       \
    exim4-daemon-light

{% if docker_base_dbgs %}
## Install common debug-packages
RUN apt-get -y install \
{% for dbg_pkg in docker_base_dbgs.split(' ') -%}
    {{ dbg_pkg }}{{' '}}
{%- endfor %}
{% else %}
RUN ln /usr/bin/vim.tiny /usr/bin/vim
{% endif %}

## Clean up apt
## Remove /var/lib/apt/lists/*, could be obsoleted for derived images
RUN apt-get clean -y; apt-get autoclean -y; apt-get autoremove -y; \
    rm -rf /var/lib/apt/lists/*;                                   \
    rm -rf /tmp/*;