snapshot.sh

#!/bin/bash
source /etc/profile

CMD_CONSISTENT_SNAPSHOT="/usr/local/bin/ec2-consistent-snapshot.pl"
HOSTNAME=$(hostname -s)

if [ "$#" -ne 3 ]; then 
	echo -e "USAGE: snapshots DATA_DEVICE DATA_DEVICE_MOUNTPOINT..."
	exit 1
else
	DATA_DEVICE=$1
	DATA_DEVICE_MOUNTPOINT=$2
fi

echo -e "Identifying data volume..."
data_volume=$(ec2-describe-volumes --filter "attachment.instance-id=INSTACE-ID" --filter "attachment.device=${DATA_DEVICE}" | grep VOLUME | awk '{print $2}')
if [ "$data_volume" != "" ]; then
	echo -e "Identified volume ${data_volume}"
	echo -e "Snapshoting data volume with freeze..."
	current_date=$(date "+%Y-%m-%d %H:%M:%S")
	snapshot_description="$HOSTNAME - $DATA_DEVICE $current_date"
	$CMD_CONSISTENT_SNAPSHOT -d --region us-west-1 $data_volume --description "$snapshot_description" --freeze-filesystem $DATA_DEVICE_MOUNTPOINT