[ovirt-users] Q: Guest shutdown from UPS power off signal with "virsh"
Hi !
I have a shell script running on all servers which intercepts power off signal (in case of
power failure).
Is it safe to use direct KVM “virsh” commands to force guest shutdown on oVirt nodes,
bypassing oVirt engine ?
“shutdown now” directly on oVirt nodes v4.2.6 takes an enormous amount of time because for
whatever reason guests can’t be suspended. My nodes installed on CentOS 7.5, I’m not using
pre-packaged version because each consecutive upgrade simply wipes out all my mods.
Thanks in advance.
Andrei
PS. I found this script to shutdown KVM guests:
***************************************
#!/bin/bash
#
https://ask.fedoraproject.org/en/question/8796/make-libvirt-to-shutdown-m...
LIST_VM=`virsh list | grep running | awk '{print $2}'`
TIMEOUT=90
DATE=`date -R`
LOGFILE="/var/log/shutdownkvm.log"
if [ "x$activevm" = "x" ]
then
exit 0
fi
for activevm in $LIST_VM
do
PIDNO=`ps ax | grep $activevm | grep kvm | cut -c 1-6 | head -n1`
echo "$DATE : Shutdown : $activevm : $PIDNO" >> $LOGFILE
virsh shutdown $activevm > /dev/null
COUNT=0
while [ "$COUNT" -lt "$TIMEOUT" ]
do
ps --pid $PIDNO > /dev/null
if [ "$?" -eq "1" ]
then
COUNT=110
else
sleep 5
COUNT=$(($COUNT+5))
fi
done
if [ $COUNT -lt 110 ]
then
echo "$DATE : $activevm not successful force shutdown" >> $LOGFILE
virsh destroy $activevm > /dev/null
fi
done