[Pkg-libvirt-maintainers] Bug#501155: Please add script for automatic restart of kvm-based instances
Andreas Barth
aba at not.so.argh.org
Sat Oct 4 21:13:53 UTC 2008
Package: libvirt-bin
Version: 0.4.4-3
Hi,
this scripts works for me, I added it with
update-rc.d libvirt-suspendonreboot defaults 21 19
Nothing too great, but it makes sure kvm-domains survive a reboot of the host
machine (and it doesn't check for possible symlink attacks in
/var/lib/libvirt/autosuspend, so make sure that directory is root-only).
Cheers,
Andi
#! /bin/bash
# (c) Andi Barth <aba at not.so.argh.org> 2008
# Distributable under the terms of the GNU GPL version 2.
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
suspenddir=/var/lib/libvirt/autosuspend
case "$1" in
start)
for domain in ${suspenddir}/*dump; do
if [ -f $domain ]; then
domain=$(basename $domain .dump)
echo "resuming $domain ..."
virsh restore ${suspenddir}/${domain}.dump && rm ${suspenddir}/${domain}.dump
fi
done
;;
stop)
for domain in /etc/libvirt/qemu/*xml; do
domain=$(basename $domain .xml)
state=$(virsh domstate $domain)
if [ "$state" == "running" ]; then
echo "suspending $domain ..."
virsh save ${domain} ${suspenddir}/${domain}.dump
fi
done
;;
reload|force-reload|restart)
# No action, nothing to reload
;;
*)
echo "Usage: $0 {start|stop|restart|reload|force-reload}" >&2
exit 1
esac
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