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#!/bin/bash
#
# following prerequisites are needed
# - all keys must be present to current user (use add_keys script to import)
flavor='testing'
secgroup='Bitmask'
keys='--key_name varac --key_name drebs --key_name kwadronaut --key_name micah --key_name elijah'
usage()
{
cat << EOF
usage: $0 options
This script reverts an openstack instance to it's snapshot.
OPTIONS:
-h Show this message
-i <instance>
-s <snapshot>
-v verbose mode
EOF
}
set -- $(getopt hi:s:v "$@")
while [ $# -gt 0 ]
do
case "$1" in
(-h) usage; exit 1 ;;
(-i) instance="$2"; shift;;
(-s) snapshot="$2"; shift;;
(--) shift; break;;
(-*) echo "$0: error - unrecognized option $1" 1>&2; exit 1;;
(*) break;;
esac
shift
done
if [[ -z $instance ]] || [[ -z $snapshot ]]
then
usage
exit 1
fi
echo "Querying $instance..."
ips=`nova show --minimal $instance | grep 'private network'| cut -f 3 -d'|'`
# 192.168.10.2, 192.168.11.7, 192.168.11.9
float_ips=`echo "$ips"| cut -f 2- -d',' | sed 's/,/ /g'`
# 192.168.11.7 192.168.11.9
echo "Floating IPs: $float_ips"
for ip in $float_ips
do
echo "Removing floating ip $ip from $instance"
nova floating-ip-delete $ip
# will re-allocate the removed ip in the pool
echo "Re-allocating $ip to the floating-ip pool"
nova floating-ip-create > /dev/null
done
echo
echo "Deleting $instance"
nova delete $instance
echo
echo "Booting $instance from snapshot $snap"
result=`nova boot --image $snapshot --flavor $flavor --security-groups $secgroup $keys $instance`
# unfortunatly unformatted
#echo $result
newid=`echo "$result" | grep '| id ' | cut -d '|' -f 3 | sed 's/ //g' `
echo
echo "New ID for instance $instance: $newid"
for ip in $float_ips
do
echo "Adding floating ip $ip to $newid"
nova add-floating-ip $newid $ip
done
nova list
echo
echo "Hang on and wait for the new instance (ID $newid) to finish building before you try to login !"
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