move lxc to tools
diff --git a/tools/build_lxc.sh b/tools/build_lxc.sh
new file mode 100755
index 0000000..d4df344
--- /dev/null
+++ b/tools/build_lxc.sh
@@ -0,0 +1,261 @@
+#!/usr/bin/env bash
+
+# Sanity check
+if [ "$EUID" -ne "0" ]; then
+ echo "This script must be run with root privileges."
+ exit 1
+fi
+
+# Warn users who aren't on natty
+if ! grep -q natty /etc/lsb-release; then
+ echo "WARNING: this script has only been tested on natty"
+fi
+
+# Move to top devstack dir
+cd ..
+
+# Abort if localrc is not set
+if [ ! -e ./localrc ]; then
+ echo "You must have a localrc with ALL necessary passwords defined before proceeding."
+ echo "See stack.sh for required passwords."
+ exit 1
+fi
+
+# Source params
+source ./stackrc
+
+# Store cwd
+CWD=`pwd`
+
+# Configurable params
+BRIDGE=${BRIDGE:-br0}
+CONTAINER=${CONTAINER:-STACK}
+CONTAINER_IP=${CONTAINER_IP:-192.168.1.50}
+CONTAINER_CIDR=${CONTAINER_CIDR:-$CONTAINER_IP/24}
+CONTAINER_NETMASK=${CONTAINER_NETMASK:-255.255.255.0}
+CONTAINER_GATEWAY=${CONTAINER_GATEWAY:-192.168.1.1}
+NAMESERVER=${NAMESERVER:-$CONTAINER_GATEWAY}
+COPYENV=${COPYENV:-1}
+DEST=${DEST:-/opt/stack}
+
+# Param string to pass to stack.sh. Like "EC2_DMZ_HOST=192.168.1.1 MYSQL_USER=nova"
+STACKSH_PARAMS=${STACKSH_PARAMS:-}
+
+# Option to use the version of devstack on which we are currently working
+USE_CURRENT_DEVSTACK=${USE_CURRENT_DEVSTACK:-1}
+
+
+# Install deps
+apt-get install -y lxc debootstrap
+
+# Install cgroup-bin from source, since the packaging is buggy and possibly incompatible with our setup
+if ! which cgdelete | grep -q cgdelete; then
+ apt-get install -y g++ bison flex libpam0g-dev make
+ wget http://sourceforge.net/projects/libcg/files/libcgroup/v0.37.1/libcgroup-0.37.1.tar.bz2/download -O /tmp/libcgroup-0.37.1.tar.bz2
+ cd /tmp && bunzip2 libcgroup-0.37.1.tar.bz2 && tar xfv libcgroup-0.37.1.tar
+ cd libcgroup-0.37.1
+ ./configure
+ make install
+ ldconfig
+fi
+
+# Create lxc configuration
+LXC_CONF=/tmp/$CONTAINER.conf
+cat > $LXC_CONF <<EOF
+lxc.network.type = veth
+lxc.network.link = $BRIDGE
+lxc.network.flags = up
+lxc.network.ipv4 = $CONTAINER_CIDR
+# allow tap/tun devices
+lxc.cgroup.devices.allow = c 10:200 rwm
+EOF
+
+# Shutdown any existing container
+lxc-stop -n $CONTAINER
+
+# This kills zombie containers
+if [ -d /cgroup/$CONTAINER ]; then
+ cgdelete -r cpu,net_cls:$CONTAINER
+fi
+
+# git clone only if directory doesn't exist already. Since ``DEST`` might not
+# be owned by the installation user, we create the directory and change the
+# ownership to the proper user.
+function git_clone {
+ if [ ! -d $2 ]; then
+ sudo mkdir $2
+ sudo chown `whoami` $2
+ git clone $1 $2
+ cd $2
+ # This checkout syntax works for both branches and tags
+ git checkout $3
+ fi
+}
+
+# Location of the base image directory
+CACHEDIR=/var/cache/lxc/natty/rootfs-amd64
+
+# Provide option to do totally clean install
+if [ "$CLEAR_LXC_CACHE" = "1" ]; then
+ rm -rf $CACHEDIR
+fi
+
+# Warm the base image on first install
+if [ ! -f $CACHEDIR/bootstrapped ]; then
+ # by deleting the container, we force lxc-create to re-bootstrap (lxc is
+ # lazy and doesn't do anything if a container already exists)
+ lxc-destroy -n $CONTAINER
+ # trigger the initial debootstrap
+ lxc-create -n $CONTAINER -t natty -f $LXC_CONF
+ chroot $CACHEDIR apt-get update
+ chroot $CACHEDIR apt-get install -y --force-yes `cat files/apts/* | cut -d\# -f1 | egrep -v "(rabbitmq|libvirt-bin|mysql-server)"`
+ chroot $CACHEDIR pip install `cat files/pips/*`
+ touch $CACHEDIR/bootstrapped
+fi
+
+# Clean out code repos if directed to do so
+if [ "$CLEAN" = "1" ]; then
+ rm -rf $CACHEDIR/$DEST
+fi
+
+# Cache openstack code
+mkdir -p $CACHEDIR/$DEST
+git_clone $NOVA_REPO $CACHEDIR/$DEST/nova $NOVA_BRANCH
+git_clone $GLANCE_REPO $CACHEDIR/$DEST/glance $GLANCE_BRANCH
+git_clone $KEYSTONE_REPO $CACHEDIR/$DESTkeystone $KEYSTONE_BRANCH
+git_clone $NOVNC_REPO $CACHEDIR/$DEST/novnc $NOVNC_BRANCH
+git_clone $DASH_REPO $CACHEDIR/$DEST/dash $DASH_BRANCH $DASH_TAG
+git_clone $NOVACLIENT_REPO $CACHEDIR/$DEST/python-novaclient $NOVACLIENT_BRANCH
+git_clone $OPENSTACKX_REPO $CACHEDIR/$DEST/openstackx $OPENSTACKX_BRANCH
+
+# Use this version of devstack?
+if [ "$USE_CURRENT_DEVSTACK" = "1" ]; then
+ rm -rf $CACHEDIR/$DEST/devstack
+ cp -pr $CWD $CACHEDIR/$DEST/devstack
+fi
+
+# Destroy the old container
+lxc-destroy -n $CONTAINER
+
+# If this call is to TERMINATE the container then exit
+if [ "$TERMINATE" = "1" ]; then
+ exit
+fi
+
+# Create the container
+lxc-create -n $CONTAINER -t natty -f $LXC_CONF
+
+# Specify where our container rootfs lives
+ROOTFS=/var/lib/lxc/$CONTAINER/rootfs/
+
+# Create a stack user that is a member of the libvirtd group so that stack
+# is able to interact with libvirt.
+chroot $ROOTFS groupadd libvirtd
+chroot $ROOTFS useradd stack -s /bin/bash -d $DEST -G libvirtd
+
+# a simple password - pass
+echo stack:pass | chroot $ROOTFS chpasswd
+
+# and has sudo ability (in the future this should be limited to only what
+# stack requires)
+echo "stack ALL=(ALL) NOPASSWD: ALL" >> $ROOTFS/etc/sudoers
+
+# Copy kernel modules
+mkdir -p $ROOTFS/lib/modules/`uname -r`/kernel
+cp -p /lib/modules/`uname -r`/modules.dep $ROOTFS/lib/modules/`uname -r`/
+cp -pR /lib/modules/`uname -r`/kernel/net $ROOTFS/lib/modules/`uname -r`/kernel/
+
+# Gracefully cp only if source file/dir exists
+function cp_it {
+ if [ -e $1 ] || [ -d $1 ]; then
+ cp -pRL $1 $2
+ fi
+}
+
+# Copy over your ssh keys and env if desired
+if [ "$COPYENV" = "1" ]; then
+ cp_it ~/.ssh $ROOTFS/$DEST/.ssh
+ cp_it ~/.ssh/id_rsa.pub $ROOTFS/$DEST/.ssh/authorized_keys
+ cp_it ~/.gitconfig $ROOTFS/$DEST/.gitconfig
+ cp_it ~/.vimrc $ROOTFS/$DEST/.vimrc
+ cp_it ~/.bashrc $ROOTFS/$DEST/.bashrc
+fi
+
+# Make our ip address hostnames look nice at the command prompt
+echo "export PS1='${debian_chroot:+($debian_chroot)}\\u@\\H:\\w\\$ '" >> $ROOTFS/$DEST/.bashrc
+echo "export PS1='${debian_chroot:+($debian_chroot)}\\u@\\H:\\w\\$ '" >> $ROOTFS/etc/profile
+
+# Give stack ownership over $DEST so it may do the work needed
+chroot $ROOTFS chown -R stack $DEST
+
+# Configure instance network
+INTERFACES=$ROOTFS/etc/network/interfaces
+cat > $INTERFACES <<EOF
+auto lo
+iface lo inet loopback
+
+auto eth0
+iface eth0 inet static
+ address $CONTAINER_IP
+ netmask $CONTAINER_NETMASK
+ gateway $CONTAINER_GATEWAY
+EOF
+
+# Configure the runner
+RUN_SH=$ROOTFS/$DEST/run.sh
+cat > $RUN_SH <<EOF
+#!/usr/bin/env bash
+# Make sure dns is set up
+echo "nameserver $NAMESERVER" | sudo resolvconf -a eth0
+sleep 1
+
+# Kill any existing screens
+killall screen
+
+# Install and run stack.sh
+sudo apt-get update
+sudo apt-get -y --force-yes install git-core vim-nox sudo
+if [ ! -d "$DEST/devstack" ]; then
+ git clone git://github.com/cloudbuilders/devstack.git $DEST/devstack
+fi
+cd $DEST/devstack && $STACKSH_PARAMS ./stack.sh > /$DEST/run.sh.log
+echo >> /$DEST/run.sh.log
+echo >> /$DEST/run.sh.log
+echo "All done! Time to start clicking." >> /$DEST/run.sh.log
+EOF
+
+# Make the run.sh executable
+chmod 755 $RUN_SH
+
+# Make runner launch on boot
+RC_LOCAL=$ROOTFS/etc/rc.local
+cat > $RC_LOCAL <<EOF
+#!/bin/sh -e
+su -c "$DEST/run.sh" stack
+EOF
+
+# Configure cgroup directory
+if ! mount | grep -q cgroup; then
+ mkdir -p /cgroup
+ mount none -t cgroup /cgroup
+fi
+
+# Start our container
+lxc-start -d -n $CONTAINER
+
+# Done creating the container, let's tail the log
+echo
+echo "============================================================="
+echo " -- YAY! --"
+echo "============================================================="
+echo
+echo "We're done creating the container, about to start tailing the"
+echo "stack.sh log. It will take a second or two to start."
+echo
+echo "Just CTRL-C at any time to stop tailing."
+
+while [ ! -e "$ROOTFS/$DEST/run.sh.log" ]; do
+ sleep 1
+done
+
+tail -F $ROOTFS/$DEST/run.sh.log