--- /dev/null
+# Image to be used as a base, e.g. one of the official ones:
+# https://github.com/docker-library/official-images/blob/master/library/debian
+FROM debian:sid
+
+# install packages
+RUN apt-get update
+
+# main packages
+RUN apt-get install -y grml-debootstrap bats eatmydata
+
+# convenient packages
+RUN apt-get install -y curl less vim wget zsh
+
+# grml config
+RUN wget -O /root/.vimrc http://git.grml.org/f/grml-etc-core/etc/vim/vimrc
+RUN wget -O /root/.zshrc http://git.grml.org/f/grml-etc-core/etc/zsh/zshrc
+
+# nice defaults
+ENV LANG C.UTF-8
+ENV TERM xterm-256color
+
+# be verbose about package versions
+RUN echo 'APT::Get::Show-Versions "1";' > /etc/apt/apt.conf.d/verbose
+
+# cleanup
+RUN apt-get clean
+RUN rm -rf /var/lib/apt/lists/*
+
+ENTRYPOINT ["/bin/zsh"]