#!/bin/sh
# Run to create an lxc container that is allowed to access the nvidia card and input devices
set -e
set -x

CONTAINERNAME=nvidia-demo

if [ ! -w / ]
then
    echo "Please run as root using sudo."
    exit 1
fi

if test "$SUDO_USER"
then
    REALUSER=$SUDO_USER
else
    echo Please run with sudo, or edit this script to set REALUSER some other way.
fi

lxc-create -t ubuntu -n $CONTAINERNAME -- --bindhome $REALUSER

# See https://lists.linuxcontainers.org/pipermail/lxc-users/2011-April/001817.html

tee -a /var/lib/lxc/$CONTAINERNAME/config <<_EOF_
lxc.cgroup.devices.allow = c 4:9 rwm  # /dev/tty9 X Desktop
lxc.cgroup.devices.allow = c 195:* rwm # /dev/nvidia Graphics card
lxc.cgroup.devices.allow = c 13:* rwm  # /dev/input/* input devices
_EOF_

echo "Now start the container with 'sudo lxc-start -n $CONTAINERNAME' and run demo-inner.sh inside it to install X"