export

#!/bin/bash

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.

set -e

env > "/tmp/EXPORT_DERPYNESS_$(date +%s)"

. common.sh



# Executing a full raw backup of the device using dd making a file-disk-image.
if [ ! -b $blockdev ]; then
	echo "ERROR: ${blockdev} is not a Block Device."
	cleanup
	exit 1
fi

# Load the configurations for this os definition
if [ -f environment.sh ]; then
	. environment.sh
else
	exit 1
fi

# File to use as template to create the rebuild helper script
REBUILD_TEMPLATE=rebuild.sh.template

# local variables used to create the helper script for the restore
EXPORT_PATH=${EXPORT_DIR}/${INSTANCE_NAME}.new

#Perform the export
dd if=${blockdev} bs=512 | pigz -p 4
EXIT_STATUS="$?"

# Create temporary directory
TMP_DIR="/tmp/ganeti-export/${INSTANCE_NAME}"
[ -d ${TMP_DIR} ] || mkdir -p ${TMP_DIR}

# Create into the backup directory the shell script helper to help the user to 
# rebuild the instance 
cat ${REBUILD_TEMPLATE} | sed -e "s/%INSTANCE_NAME%/${INSTANCE_NAME}/g" \
	   -e "s/%INSTANCE_PRIMARY_NODE%/${INSTANCE_PRIMARY_NODE}/g" \
	   -e "s/%INSTANCE_SECONDARY_NODES%/${INSTANCE_SECONDARY_NODES}/g" \
	   > ${TMP_DIR}/rebuild.sh

# Copy the files into the backup directory 
# NOTE: One of the following commands always fails
scp ${TMP_DIR}/* ${INSTANCE_PRIMARY_NODE}:${EXPORT_PATH}/ || true
scp ${TMP_DIR}/* ${INSTANCE_SECONDARY_NODES}:${EXPORT_PATH}/ || true
rm -fr ${TMP_DIR}

# execute cleanups
cleanup
trap - EXIT

exit ${EXIT_STATUS}