<NME> Dockerfile
<BEF> ADDFILE
<MSG> Install initial packages and supervisord.

<DFF> @@ -0,0 +1,15 @@
+FROM debian:8
+MAINTAINER Matt McCormick <matt.mccormick@kitware.com>
+
+RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y \
+  libgl1-mesa-dri \
+  mesa-utils \
+  openbox \
+  supervisor \
+  x11vnc \
+  xserver-xorg-video-dummy \
+  xserver-xorg-input-void \
+  websockify && \
+  rm -f /usr/share/applications/x11vnc.desktop
+
+CMD ["/usr/bin/supervisord", "-c", "/etc/supervisor/supervisord.conf"]

Install initial packages and supervisord.