init

Dockerfile

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+FROM ubuntu:12.04
+MAINTAINER Doro Wu <fcwu.tw@gmail.com>
+
+ENV DEBIAN_FRONTEND noninteractive
+ENV HTTP_PROXY http://172.17.42.1:3134
+
+# setup our Ubuntu sources (ADD breaks caching)
+RUN echo "deb http://us.archive.ubuntu.com/ubuntu/ precise main\n\
+deb http://us.archive.ubuntu.com/ubuntu/ precise multiverse\n\
+deb http://us.archive.ubuntu.com/ubuntu/ precise universe\n\
+deb http://us.archive.ubuntu.com/ubuntu/ precise restricted\n\
+"> /etc/apt/sources.list
+
+# no Upstart or DBus
+# https://github.com/dotcloud/docker/issues/1724#issuecomment-26294856
+RUN apt-mark hold initscripts udev plymouth mountall
+RUN dpkg-divert --local --rename --add /sbin/initctl && ln -s /bin/true /sbin/initctl
+
+RUN apt-get update
+
+# install our "base" environment
+RUN apt-get install -y --no-install-recommends openssh-server pwgen sudo vim-tiny
+RUN apt-get install -y --no-install-recommends lxde
+RUN apt-get install -y --no-install-recommends x11vnc xvfb
+RUN apt-get install -y supervisor
+RUN apt-get install -y libreoffice
+RUN apt-get install -y firefox
+
+ADD startup.sh /
+ADD supervisord.conf /
+
+# clean up after ourselves
+RUN apt-get clean
+
+EXPOSE 5900
+EXPOSE 22
+WORKDIR /
+ENTRYPOINT ["/startup.sh"]

startup.sh

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+#!/bin/bash
+
+mkdir /var/run/sshd
+
+# create an ubuntu user
+PASS=`pwgen -c -n -1 10`
+PASS=ubuntu
+echo "User: ubuntu Pass: $PASS"
+useradd --create-home --shell /bin/bash --user-group --groups adm,sudo ubuntu
+echo "ubuntu:$PASS" | chpasswd
+
+exec /usr/bin/supervisord -c /supervisord.conf -n

supervisord.conf

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+[supervisord]
+nodaemon=false
+
+[program:ssh]
+priority=10
+directory=/
+command=/usr/sbin/sshd -D
+user=root
+autostart=true
+autorestart=true
+stopsignal=QUIT
+
+[program:xvfb]
+priority=10
+directory=/
+command=/usr/bin/Xvfb :1 -screen 0 1024x768x16
+user=root
+autostart=true
+autorestart=true
+stopsignal=QUIT
+stdout_logfile=/var/log/xvfb.log
+stderr_logfile=/var/log/xvfb.err
+
+[program:lxsession]
+priority=15
+directory=/home/ubuntu
+command=/usr/bin/lxsession
+user=ubuntu
+autostart=true
+autorestart=true
+stopsignal=QUIT
+environment=DISPLAY=":1"
+stdout_logfile=/var/log/lxsession.log
+stderr_logfile=/var/log/lxsession.err
+
+[program:x11vnc]
+priority=20
+directory=/
+command=x11vnc -display :1 -xkb
+#command=x11vnc -display :1 -listen localhost -xkb
+user=root
+autostart=true
+autorestart=true
+stopsignal=QUIT
+stdout_logfile=/var/log/x11vnc.log
+stderr_logfile=/var/log/x11vnc.err