one-reinstantiate-vm.sh

one-reinstantiate-vm.sh

#!/bin/bash
#
# reinstantiate-vm.sh
#
# reinstantiate vms based on current vmid
# to prevent data loss vm is checked that it does not contain nonpersistent volumes
#
# reinstantiation consists of
#   get template from which vm was started
#   shutdown vm
#   instantiate template
#   fix vm owner based on the template owner
#

vmid=$1

[ -n "$vmid" ] || exit 1

echo "vmid=$vmid"
vmname=$(onevm show $vmid --xml | xmlstarlet sel -t -m '//VM' -v NAME )
echo "vmname=$vmname"
tplid=$(onevm show $vmid | grep TEMPLATE_ID | cut -d '"' -f 2)
echo "tplid=$tplid"

if onevm show $vmid --xml | xmlstarlet sel -t -m '//VM/TEMPLATE/DISK' -v SAVE | grep -q NO
then
	echo "ERROR: VM $vmid contains nonpersistent volumes, exiting!"
	exit 1
fi

echo "waiting 5sec..."
sleep 5

echo "shutting down..."
onevm shutdown $vmid
until [ "$(onevm show $vmid | grep ^STATE | cut -d : -f 2 | tr -d " " )" = "DONE" ]
do
        echo "wainting for shutdown..."
        sleep 2
done
echo "starting new vm..."
newvmid=$(onetemplate instantiate $tplid)
newvmid=$(echo "$newvmid" | grep "VM ID:" | cut -d : -f 2 | tr -d ' ')

echo "newvmid=$newvmid"

if [ -n "$newvmid" ]
then
        echo "fixing vm owner..."
        one-fix-vm-owner.sh $newvmid
fi