Updated scripts and documentation

Dockerfile

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+FROM ubuntu:xenial
+MAINTAINER Fmstrat <[email protected]>
+
+ENV DEBIAN_FRONTEND noninteractive
+
+RUN apt-get update && apt-get upgrade -y
+
+# Install all apps
+# The third line is for multi-site config (ping is for testing later)
+RUN apt-get install -y pkg-config
+RUN apt-get install -y attr acl samba smbclient ldap-utils winbind libnss-winbind libpam-winbind krb5-user krb5-kdc supervisor
+RUN apt-get install -y openvpn inetutils-ping
+
+# Set up script and run
+ADD init.sh /init.sh
+RUN chmod 755 /init.sh
+CMD /init.sh setup