#!/bin/bash

# This script is run by install_os_domU.sh

#

# It modifies the ubuntu image created by install_os_domU.sh

# and previously moodified by prepare_guest_template.sh

#

# This script is responsible for:

# - pushing in the DevStack code

# - creating run.sh, to run the code on boot

# It does this by mounting the disk image of the VM.

#

# The resultant image is then templated and started

# by install_os_domU.sh

# Exit on errors

set -o errexit

# Echo commands

set -o xtrace

# This directory

TOP_DIR=$(cd $(dirname "$0") && pwd)

# Include onexit commands

. $TOP_DIR/scripts/on_exit.sh

# Source params - override xenrc params in your localrc to suite your taste

source xenrc

#

# Parameters

#

GUEST_NAME="$1"

#

# Mount the VDI

#

STAGING_DIR=$($TOP_DIR/scripts/manage-vdi open $GUEST_NAME 0 1 | grep -o "/tmp/tmp.[[:alnum:]]*")

add_on_exit "$TOP_DIR/scripts/manage-vdi close $GUEST_NAME 0 1"

# 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

TEMPLATES_DIR=$TOP_DIR/templates

# 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-//"`

# Configure dns (use same dns as dom0)

cp /etc/resolv.conf $STAGING_DIR/etc/resolv.conf

# Copy over devstack

rm -f /tmp/devstack.tar

cd $TOP_DIR/../../

tar --exclude='stage' --exclude='xen/xvas' --exclude='xen/nova' -cvf /tmp/devstack.tar .

mkdir -p $STAGING_DIR/opt/stack/devstack

tar xf /tmp/devstack.tar -C $STAGING_DIR/opt/stack/devstack

cd $TOP_DIR

# Run devstack on launch

cat <<EOF >$STAGING_DIR/etc/rc.local

# network restart required for getting the right gateway

/etc/init.d/networking restart

chown -R stack /opt/stack

su -c "/opt/stack/run.sh > /opt/stack/run.sh.log 2>&1" stack

exit 0

EOF

# Configure the hostname

echo $GUEST_NAME > $STAGING_DIR/etc/hostname

# Hostname must resolve for rabbit

HOSTS_FILE_IP=$PUB_IP

if [ $MGT_IP != "dhcp" ]; then

HOSTS_FILE_IP=$MGT_IP

fi

cat <<EOF >$STAGING_DIR/etc/hosts

$HOSTS_FILE_IP $GUEST_NAME

127.0.0.1 localhost localhost.localdomain

EOF

# Configure the network

INTERFACES=$STAGING_DIR/etc/network/interfaces

cp $TEMPLATES_DIR/interfaces.in $INTERFACES

if [ $VM_IP == "dhcp" ]; then

echo 'eth1 on dhcp'

sed -e "s,iface eth1 inet static,iface eth1 inet dhcp,g" -i $INTERFACES

sed -e '/@ETH1_/d' -i $INTERFACES

else

sed -e "s,@ETH1_IP@,$VM_IP,g" -i $INTERFACES

sed -e "s,@ETH1_NETMASK@,$VM_NETMASK,g" -i $INTERFACES

fi

if [ $MGT_IP == "dhcp" ]; then

echo 'eth2 on dhcp'

sed -e "s,iface eth2 inet static,iface eth2 inet dhcp,g" -i $INTERFACES

sed -e '/@ETH2_/d' -i $INTERFACES

else

sed -e "s,@ETH2_IP@,$MGT_IP,g" -i $INTERFACES

sed -e "s,@ETH2_NETMASK@,$MGT_NETMASK,g" -i $INTERFACES

fi

if [ $PUB_IP == "dhcp" ]; then

echo 'eth3 on dhcp'

sed -e "s,iface eth3 inet static,iface eth3 inet dhcp,g" -i $INTERFACES

sed -e '/@ETH3_/d' -i $INTERFACES

else

sed -e "s,@ETH3_IP@,$PUB_IP,g" -i $INTERFACES

sed -e "s,@ETH3_NETMASK@,$PUB_NETMASK,g" -i $INTERFACES

fi

if [ "$ENABLE_GI" == "true" ]; then

cat <<EOF >>$INTERFACES

auto eth0

iface eth0 inet dhcp

EOF

fi

# 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 $STAGING_DIR/opt/stack/.ssh

cp_it ~/.ssh/id_rsa.pub $STAGING_DIR/opt/stack/.ssh/authorized_keys

cp_it ~/.gitconfig $STAGING_DIR/opt/stack/.gitconfig

cp_it ~/.vimrc $STAGING_DIR/opt/stack/.vimrc

cp_it ~/.bashrc $STAGING_DIR/opt/stack/.bashrc

fi

# Configure run.sh

cat <<EOF >$STAGING_DIR/opt/stack/run.sh

#!/bin/bash

cd /opt/stack/devstack

killall screen

VIRT_DRIVER=xenserver FORCE=yes MULTI_HOST=$MULTI_HOST HOST_IP_IFACE=$HOST_IP_IFACE $STACKSH_PARAMS ./stack.sh

EOF

chmod 755 $STAGING_DIR/opt/stack/run.sh