Initial commit of xen devstack support
diff --git a/tools/xen/build_domU.sh b/tools/xen/build_domU.sh
new file mode 100755
index 0000000..97d2a27
--- /dev/null
+++ b/tools/xen/build_domU.sh
@@ -0,0 +1,288 @@
+#!/bin/bash
+
+# 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 the xen README for required passwords."
+    exit 1
+fi
+
+# Echo commands
+set -o xtrace
+
+# Name of this guest
+GUEST_NAME=${GUEST_NAME:-ALLINONE}
+
+# dom0 ip
+HOST_IP=${HOST_IP:-`ifconfig xenbr0 | grep "inet addr" | cut -d ":" -f2 | sed "s/ .*//"`}
+
+# Our nova host's network info 
+MGT_IP=${MGT_IP:-172.16.100.1}
+PUB_IP=${PUB_IP:-192.168.1.55}
+
+# Public network
+PUB_BR=${PUB_BR:-xenbr0}
+PUB_NETMASK=${PUB_NETMASK:-255.255.255.0}
+
+# VM network params
+VM_NETMASK=${VM_NETMASK:-255.255.255.0}
+VM_BR=${VM_BR:-xapi1}
+VM_VLAN=${VM_VLAN:-100}
+
+# MGMT network params
+MGT_NETMASK=${MGT_NETMASK:-255.255.255.0}
+MGT_BR=${MGT_BR:-xapi2}
+MGT_VLAN=${MGT_VLAN:-101}
+
+# VM Password
+PASSWORD=${PASSWORD:-secrete}
+
+# Size of image
+VDI_MB=${VDI_MB:-2500}
+
+# This directory
+TOP_DIR=$(cd $(dirname "$0") && pwd)
+
+# Make sure we have git
+if ! which git; then
+    GITDIR=/tmp/git-1.7.7
+    cd /tmp
+    rm -rf $GITDIR*
+    wget http://git-core.googlecode.com/files/git-1.7.7.tar.gz
+    tar xfv git-1.7.7.tar.gz
+    cd $GITDIR
+    ./configure
+    make install
+    cd $TOP_DIR
+fi
+
+# Helper to create networks
+function create_network() {
+    if ! xe network-list | grep bridge | grep -q $1; then
+        echo "Creating bridge $1"
+        xe network-create name-label=$1
+    fi
+}
+
+# Create host, vm, mgmt, pub networks
+create_network xapi0
+create_network $VM_BR
+create_network $MGT_BR
+create_network $PUB_BR
+
+# Get the uuid for our physical (public) interface
+PIF=`xe pif-list --minimal device=eth0`
+
+# Create networks/bridges for vm and management
+VM_NET=`xe network-list --minimal bridge=$VM_BR`
+MGT_NET=`xe network-list --minimal bridge=$MGT_BR`
+
+# Helper to create vlans
+function create_vlan() {
+    pif=$1
+    vlan=$2
+    net=$3
+    if ! xe vlan-list | grep tag | grep -q $vlan; then
+        xe vlan-create pif-uuid=$pif vlan=$vlan network-uuid=$net
+    fi
+}
+
+# Create vlans for vm and management
+create_vlan $PIF $VM_VLAN $VM_NET
+create_vlan $PIF $MGT_VLAN $MGT_NET
+
+# Setup host-only nat rules
+HOST_NET=169.254.0.0/16
+if ! iptables -L -v -t nat | grep -q $HOST_NET; then
+    iptables -t nat -A POSTROUTING -s $HOST_NET -j SNAT --to-source $HOST_IP
+    iptables -I FORWARD 1 -s $HOST_NET -j ACCEPT
+    /etc/init.d/iptables save
+fi
+
+# Set up ip forwarding
+if ! grep -q "FORWARD_IPV4=YES" /etc/sysconfig/network; then
+    # FIXME: This doesn't work on reboot!
+    echo "FORWARD_IPV4=YES" >> /etc/sysconfig/network
+fi
+
+# Also, enable ip forwarding in rc.local, since the above trick isn't working
+if ! grep -q  "echo 1 >/proc/sys/net/ipv4/ip_forward" /etc/rc.local; then
+    echo "echo 1 >/proc/sys/net/ipv4/ip_forward" >> /etc/rc.local
+fi
+
+# Enable ip forwarding at runtime as well
+echo 1 > /proc/sys/net/ipv4/ip_forward
+
+# Directory where we stage the build
+STAGING_DIR=$TOP_DIR/stage
+
+# Option to clean out old stuff
+CLEAN=${CLEAN:-0}
+if [ "$CLEAN" = "1" ]; then
+    rm -rf $STAGING_DIR
+fi
+
+# Download our base image.  This image is made using prepare_guest.sh
+BASE_IMAGE_URL=${BASE_IMAGE_URL:-http://images.ansolabs.com/xen/stage.tgz}
+if [ ! -e $STAGING_DIR ]; then
+    if [ ! -e /tmp/stage.tgz ]; then
+        wget $BASE_IMAGE_URL -O /tmp/stage.tgz
+    fi
+    tar xfz /tmp/stage.tgz
+    cd $TOP_DIR
+fi
+
+# Free up precious disk space
+rm -f /tmp/stage.tgz
+
+# Make sure we have a stage
+if [ ! -d $STAGING_DIR/etc ]; then
+    echo "Stage is not properly set up!"
+    exit 1
+fi
+
+# Directory where our conf files are stored
+FILES_DIR=$TOP_DIR/files
+
+# Directory for supporting script files
+SCRIPT_DIR=$TOP_DIR/scripts
+
+# Version of ubuntu with which we are working
+UBUNTU_VERSION=`cat $STAGING_DIR/etc/lsb-release | grep "DISTRIB_CODENAME=" | sed "s/DISTRIB_CODENAME=//"`
+KERNEL_VERSION=`ls $STAGING_DIR/boot/vmlinuz* | head -1 | sed "s/.*vmlinuz-//"`
+
+# Setup fake grub
+rm -rf $STAGING_DIR/boot/grub/
+mkdir -p $STAGING_DIR/boot/grub/
+cp $FILES_DIR/menu.lst.in $STAGING_DIR/boot/grub/menu.lst
+sed -e "s,@KERNEL_VERSION@,$KERNEL_VERSION,g" -i $STAGING_DIR/boot/grub/menu.lst
+
+# Setup fstab, tty, and other system stuff
+cp $FILES_DIR/fstab $STAGING_DIR/etc/fstab
+cp $FILES_DIR/hvc0.conf $STAGING_DIR/etc/init/
+
+# Put the VPX into UTC.
+rm -f $STAGING_DIR/etc/localtime
+
+# Helper to set hostname
+function set_hostname() {
+    echo $1 > $STAGING_DIR/etc/hostname
+}
+
+# We need a resolvable host name for rabbit to launch
+if ! grep -q $GUEST_NAME $STAGING_DIR/etc/hosts; then
+    echo "$MGT_IP $GUEST_NAME" >> $STAGING_DIR/etc/hosts
+fi
+
+# Configre hosts file
+cat <<EOF >$STAGING_DIR/etc/hosts
+$MGT_IP $GUEST_NAME
+127.0.0.1 localhost localhost.localdomain
+EOF
+
+# Configure dns (use same dns as dom0)
+cp /etc/resolv.conf $STAGING_DIR/etc/resolv.conf
+
+# Copy over devstack
+rm -f /tmp/devstack.tar
+tar --exclude='stage' --exclude='xen/xvas' --exclude='xen/nova' -cvf /tmp/devstack.tar $TOP_DIR/../../../devstack
+cd $STAGING_DIR/opt/stack/
+tar xf /tmp/devstack.tar
+cd $TOP_DIR
+
+# Configure OVA
+VDI_SIZE=$(($VDI_MB*1024*1024))
+PRODUCT_BRAND=${PRODUCT_BRAND:-openstack}
+PRODUCT_VERSION=${PRODUCT_VERSION:-001}
+BUILD_NUMBER=${BUILD_NUMBER:-001}
+LABEL="$PRODUCT_BRAND $PRODUCT_VERSION-$BUILD_NUMBER"
+OVA=$STAGING_DIR/tmp/ova.xml
+cp templates/ova.xml.in  $OVA
+sed -e "s,@VDI_SIZE@,$VDI_SIZE,g" -i $OVA
+sed -e "s,@PRODUCT_BRAND@,$PRODUCT_BRAND,g" -i $OVA
+sed -e "s,@PRODUCT_VERSION@,$PRODUCT_VERSION,g" -i $OVA
+sed -e "s,@BUILD_NUMBER@,$BUILD_NUMBER,g" -i $OVA
+
+# Directory for xvas
+XVA_DIR=$TOP_DIR/xvas
+
+# Create xva dir
+mkdir -p $XVA_DIR
+
+# Clean nova if desired
+if [ "$CLEAN" = "1" ]; then
+    rm -rf $TOP_DIR/nova
+fi
+
+# Checkout nova
+if [ ! -d $TOP_DIR/nova ]; then
+    git clone git://github.com/cloudbuilders/nova.git
+    git checkout diablo
+fi 
+
+# Run devstack on launch
+cat <<EOF >$STAGING_DIR/etc/rc.local
+STAGING_DIR=/ DO_TGZ=0 bash /opt/stack/devstack/tools/xen/prepare_guest.sh
+STAGING_DIR=/ DO_TGZ=0 bash /opt/stack/devstack/tools/xen/prepare_guest.sh
+su -c "/opt/stack/run.sh > /opt/stack/run.sh.log" stack
+exit 0
+EOF
+
+# Install plugins
+cp -pr $TOP_DIR/nova/plugins/xenserver/xenapi/etc/xapi.d /etc/
+chmod a+x /etc/xapi.d/plugins/*
+yum --enablerepo=base install -y parted
+mkdir -p /boot/guest
+
+# Set local storage il8n
+SR_UUID=`xe sr-list --minimal name-label="Local storage"`
+xe sr-param-set uuid=$SR_UUID other-config:i18n-key=local-storage
+
+# Uninstall previous runs
+xe vm-list --minimal name-label="$LABEL" | xargs ./scripts/uninstall-os-vpx.sh
+
+# Destroy any instances that were launched
+for uuid in `xe vm-list | grep -1 instance | grep uuid | sed "s/.*\: //g"`; do
+    echo "Shutting down nova instance $uuid"
+    xe vm-shutdown uuid=$uuid
+    xe vm-destroy uuid=$uuid
+done
+
+# Path to head xva.  By default keep overwriting the same one to save space
+USE_SEPARATE_XVAS=${USE_SEPARATE_XVAS:-0}
+if [ "$USE_SEPARATE_XVAS" = "0" ]; then
+    XVA=$XVA_DIR/$UBUNTU_VERSION.xva 
+else
+    XVA=$XVA_DIR/$UBUNTU_VERSION.$GUEST_NAME.xva 
+fi
+
+# Clean old xva. In the future may not do this every time.
+rm -f $XVA
+
+# Configure the network
+set_hostname $GUEST_NAME
+INTERFACES=$STAGING_DIR/etc/network/interfaces
+cp templates/interfaces.in  $INTERFACES
+sed -e "s,@ETH1_NETMASK@,$VM_NETMASK,g" -i $INTERFACES
+sed -e "s,@ETH2_IP@,$MGT_IP,g" -i $INTERFACES
+sed -e "s,@ETH2_NETMASK@,$MGT_NETMASK,g" -i $INTERFACES
+sed -e "s,@ETH3_IP@,$PUB_IP,g" -i $INTERFACES
+sed -e "s,@ETH3_NETMASK@,$PUB_NETMASK,g" -i $INTERFACES
+
+# Configure run.sh
+cat <<EOF >$STAGING_DIR/opt/stack/run.sh
+#!/bin/bash
+cd /opt/stack/devstack
+killall screen
+UPLOAD_LEGACY_TTY=yes HOST_IP=$PUB_IP VIRT_DRIVER=xenserver FORCE=yes MULTI_HOST=1 $STACKSH_PARAMS ./stack.sh
+EOF
+chmod 755 $STAGING_DIR/opt/stack/run.sh
+
+# Create xva
+if [ ! -e $XVA ]; then
+    rm -rf /tmp/mkxva*
+    UID=0 $SCRIPT_DIR/mkxva -o $XVA -t xva -x $OVA $STAGING_DIR $VDI_MB /tmp/
+fi
+
+# Start guest
+$TOP_DIR/scripts/install-os-vpx.sh -f $XVA -v $VM_BR -m $MGT_BR -p $PUB_BR