add build_kvm file
diff --git a/tools/build_kvm.sh b/tools/build_kvm.sh
new file mode 100755
index 0000000..ade5115
--- /dev/null
+++ b/tools/build_kvm.sh
@@ -0,0 +1,288 @@
+#!/usr/bin/env bash
+
+# Echo commands
+set -o xtrace
+
+# Keep track of the current directory
+TOOLS_DIR=$(cd $(dirname "$0") && pwd)
+
+ROOT_PASSWORD=${ROOT_PASSWORD:password}
+PERSIST_DIR=${PERSIST_DIR:-/opt/kvmstack}
+IMAGES_DIR=$PERSIST_DIR/images
+mkdir -p $UEC_DIR
+
+# Move to top devstack dir
+cd ..
+
+# Abort if localrc is not set
+if [ ! -e ./localrc ]; then
+ echo "You must have a localrc with ALL necessary passwords defined before proceeding."
+ echo "See stack.sh for required passwords."
+ exit 1
+fi
+
+# Source params
+source ./stackrc
+
+# Base image (oneiric by default)
+IMAGE_FNAME=natty.raw
+IMAGE_NAME=natty
+
+BASE_IMAGE=$PERSIST_DIR/images/natty.raw
+BASE_IMAGE_COPY=$IMAGES_DIR/$IMAGE_NAME.raw.copy
+
+VM_NAME=${VM_NAME:-kvmstack}
+virsh shutdown $VM_NAME
+virsh destroy $VM_NAME
+
+VM_DIR=$PERSIST_DIR/instances/$VM_NAME
+
+mkdir -p $VM_DIR
+
+# Where to mount
+COPY_DIR=$VM_DIR/copy
+mkdir -p $COPY_DIR
+
+
+if [ ! -e $IMAGES_DIR/$IMAGE_FNAME ]; then
+ cd $TOOLS_DIR
+ ./make_image.sh -m -r 5000 natty raw
+ mv natty.raw $BASE_IMAGE
+ cd $TOP_DIR
+fi
+
+function unmount_images() {
+ # unmount the filesystem
+ while df | grep -q $COPY_DIR; do
+ umount $COPY_DIR || echo 'ok'
+ sleep 1
+ done
+}
+
+# unmount from failed runs
+unmount_images
+
+function kill_tail() {
+ unmount_images
+ exit 1
+}
+
+if [ ! -e $BASE_IMAGE_COPY ]; then
+ cp -p $BASE_IMAGE $BASE_IMAGE_COPY
+fi
+
+# Install deps
+apt-get install -y kvm libvirt-bin kpartx
+
+# Let Ctrl-c kill tail and exit
+trap kill_tail SIGINT
+
+# Where code will live in image
+DEST=${DEST:-/opt/stack}
+
+# Mount the file system
+mount -o loop,offset=32256 $BASE_IMAGE_COPY $COPY_DIR
+
+# 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
+}
+
+# Make sure that base requirements are installed
+cp /etc/resolv.conf $COPY_DIR/etc/resolv.conf
+chroot $COPY_DIR apt-get update
+chroot $COPY_DIR apt-get install -y --force-yes `cat files/apts/* | cut -d\# -f1 | egrep -v "(rabbitmq|libvirt-bin|mysql-server)"`
+chroot $COPY_DIR apt-get install -y --download-only rabbitmq-server libvirt-bin mysql-server
+chroot $COPY_DIR pip install `cat files/pips/*`
+
+# Clean out code repos if directed to do so
+if [ "$CLEAN" = "1" ]; then
+ rm -rf $COPY_DIR/$DEST
+fi
+
+# Cache openstack code
+mkdir -p $COPY_DIR/$DEST
+git_clone $NOVA_REPO $COPY_DIR/$DEST/nova $NOVA_BRANCH
+git_clone $GLANCE_REPO $COPY_DIR/$DEST/glance $GLANCE_BRANCH
+git_clone $KEYSTONE_REPO $COPY_DIR/$DESTkeystone $KEYSTONE_BRANCH
+git_clone $NOVNC_REPO $COPY_DIR/$DEST/noVNC $NOVNC_BRANCH
+git_clone $DASH_REPO $COPY_DIR/$DEST/dash $DASH_BRANCH $DASH_TAG
+git_clone $NOVACLIENT_REPO $COPY_DIR/$DEST/python-novaclient $NOVACLIENT_BRANCH
+git_clone $OPENSTACKX_REPO $COPY_DIR/$DEST/openstackx $OPENSTACKX_BRANCH
+git_clone $KEYSTONE_REPO $COPY_DIR/$DEST/keystone $KEYSTONE_BRANCH
+git_clone $NOVNC_REPO $COPY_DIR/$DEST/noVNC $NOVNC_BRANCH
+
+# unmount the filesystems
+unmount_images
+
+rm -f $VM_DIR/kernel
+rm -f $VM_DIR/disk
+
+cd $VM_DIR
+qemu-img create -f qcow2 -b $BASE_IMAGE_COPY disk
+
+BRIDGE=${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}
+CONTAINER_MAC=${CONTAINER_MAC:-02:16:3e:07:70:d7}
+
+# Create configuration
+LIBVIRT_XML=libvirt.xml
+cat > $LIBVIRT_XML <<EOF
+<domain type='kvm'>
+ <name>$VM_NAME</name>
+ <memory>1524288</memory>
+ <os>
+ <type>hvm</type>
+<!--
+ <kernel>$VM_DIR/kernel</kernel>
+ <cmdline>root=/dev/vda console=ttyS0</cmdline>
+-->
+ </os>
+ <features>
+ <acpi/>
+ </features>
+ <vcpu>1</vcpu>
+ <devices>
+ <disk type='file'>
+ <driver type='qcow2'/>
+ <source file='$VM_DIR/disk'/>
+ <target dev='vda' bus='virtio'/>
+ </disk>
+
+ <interface type='bridge'>
+ <source bridge='$BRIDGE'/>
+ <mac address='$CONTAINER_MAC'/>
+ </interface>
+
+ <!-- The order is significant here. File must be defined first -->
+ <serial type="file">
+ <source path='$VM_DIR/console.log'/>
+ <target port='1'/>
+ </serial>
+
+ <console type='pty' tty='/dev/pts/2'>
+ <source path='/dev/pts/2'/>
+ <target port='0'/>
+ </console>
+
+ <serial type='pty'>
+ <source path='/dev/pts/2'/>
+ <target port='0'/>
+ </serial>
+
+ <graphics type='vnc' port='-1' autoport='yes' keymap='en-us' listen='0.0.0.0'/>
+ </devices>
+</domain>
+EOF
+
+ROOTFS=$VM_DIR/root
+mkdir -p $ROOTFS
+
+modprobe nbd max_part=63
+
+umount $ROOTFS || echo 'ok'
+qemu-nbd -d /dev/nbd5 || echo 'ok'
+
+qemu-nbd -c /dev/nbd5 disk
+mount /dev/nbd5 $ROOTFS -o offset=32256 -t ext4
+
+# Configure instance network
+INTERFACES=$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
+
+chroot $ROOTFS groupadd libvirtd
+chroot $ROOTFS useradd stack -s /bin/bash -d $DEST -G libvirtd
+cp -pr $TOOLS_DIR/.. $ROOTFS/$DEST/devstack
+echo "root:$ROOT_PASSWORD" | chroot $ROOTFS chpasswd
+
+# a simple password - pass
+echo "stack:pass" | chroot $ROOTFS chpasswd
+
+# stack requires)
+echo "stack ALL=(ALL) NOPASSWD: ALL" >> $ROOTFS/etc/sudoers
+
+# Gracefully cp only if source file/dir exists
+function cp_it {
+ if [ -e $1 ] || [ -d $1 ]; then
+ cp -pRL $1 $2
+ fi
+}
+
+# Copy over your ssh keys and env if desired
+COPYENV=${COPYENV:-1}
+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
+
+# Configure the runner
+RUN_SH=$ROOTFS/$DEST/run.sh
+cat > $RUN_SH <<EOF
+#!/usr/bin/env bash
+sleep 1
+
+# Kill any existing screens
+killall screen
+
+# Install and run stack.sh
+sudo apt-get update
+sudo apt-get -y --force-yes install git-core vim-nox sudo
+if [ ! -d "$DEST/devstack" ]; then
+ git clone git://github.com/cloudbuilders/devstack.git $DEST/devstack
+fi
+cd $DEST/devstack && $STACKSH_PARAMS FORCE=yes ./stack.sh > /$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/init.d/local
+cat > $RC_LOCAL <<EOF
+#!/bin/sh -e
+su -c "$DEST/run.sh" stack
+EOF
+
+# 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
+
+chmod +x $RC_LOCAL
+chroot $ROOTFS sudo update-rc.d local defaults 80
+
+umount $ROOTFS
+qemu-nbd -d /dev/nbd5
+
+cd $VM_DIR
+virsh create libvirt.xml