creates a simple lxc container and starts bash in it

create_lxc.sh

#!/bin/bash
# creates a simple lxc container and starts bash in it
# ... steps from tutorial on:
# http://www.phenona.com/blog/using-lxc-linux-containers-in-amazon-ec2/
if [ "$(whoami)" != "root" ]
then
  echo "script must be executed as root!"
  exit 1
fi

echo "********* installing lxc"
apt-get update && apt-get install lxc debootstrap bridge-utils dnsmasq

echo "********* checking lxc installation"
if ! lxc-checkconfig
then
  echo "error executing lxc-checkconfig"
  return 2
fi

echo "********* mounting cgroup"
mkdir /cgroup
mount -t cgroup none /cgroup
echo "none /cgroup cgroup defaults 0 0" >> /etc/fstab

echo "********* creating network bridge for container"
brctl addbr br0
brctl setfd br0 0
ifconfig br0 192.168.3.1 up

iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
sysctl -w net.ipv4.ip_forward=1

mkdir /tmp/backups
test -f /tmp/backups/dnsmasq.conf || cp /etc/dnsmasq.conf /tmp/backups

cat <<EOF> /etc/dnsmasq.conf
domain-needed
bogus-priv
interface = br0
listen-address = 127.0.0.1
listen-address = 192.168.3.1
expand-hosts
domain = containers
dhcp-range = 192.168.3.50,192.168.3.200,1h
EOF

cat <<EOF> /etc/dhcp3/dhclient-enter-hooks.d/lxc
prepend domain-name-servers 127.0.0.1;
prepend domain-search "containers.";
EOF

apt-get install dhcp3-client
dhclient -e IF_METRIC=100 -pf /var/run/dhclient.eth0.pid -lf /var/lib/dhcp3/dhclient.eth0.leases eth0
/etc/init.d/unbound stop
service dnsmasq restart


echo "********* creating ubuntu container"
wget -O lxc-ubuntu http://xrl.us/ec2ubuntulxc
chmod +x lxc-ubuntu

./lxc-ubuntu -p /mnt/vm0 -n vm0
lxc-start -n vm0 /bin/bash

Sadly, the URL on line 60 is broken.