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#!/usr/bin/bash
# Init script for libvirtd on Slackware
# Written by Matteo Bernardini <ponce@slackbuilds.org>
#
# Note that a dnsmasq daemon is started by libvirtd itself to serve
# its virtual network, and possibly can conflict with a dnsmasq
# already running on the system, see
# http://wiki.libvirt.org/page/Libvirtd_and_dnsmasq
# Note also that the tun, vhost_net and kvm related modules are
# automatically loaded at start and removed at stop: edit the
# script if this behaviour conflicts with anything else running
# on your setup
MODULES="tun vhost_net"
TIMEOUT=${TIMEOUT:-300}
LIBVIRTD_PIDFILE="/var/run/libvirt/libvirtd.pid"
LIBVIRTD_OPTS=${LIBVIRT_OPTS:-" -v -f /etc/libvirt/libvirtd.conf -p $LIBVIRTD_PIDFILE "}
VIRTLOGD_PIDFILE="/var/run/libvirt/virtlogd.pid"
VIRTLOGD_OPTS=${VIRTLOGD_OPTS:-" -v -f /etc/libvirt/virtlogd.conf -p $VIRTLOGD_PIDFILE "}
VIRTLOCKD_PIDFILE="/var/run/libvirt/virtlockd.pid"
VIRTLOCKD_OPTS=${VIRTLOCKD_OPTS:-" -v -f /etc/libvirt/virtlockd.conf -p $VIRTLOCKD_PIDFILE "}
guests_reboot() {
for machine in $(/usr/sbin/virsh list --name --state-running | grep -v ^$) ; do
/usr/sbin/virsh reboot $machine
done
}
guests_shutdown() {
for machine in $(/usr/sbin/virsh list --name --state-running | grep -v ^$) ; do
/usr/sbin/virsh shutdown $machine &
done
echo -n "Waiting for guests to finish shutting down"
while [ $(/usr/sbin/virsh list --name --state-running | grep -v ^$ | wc -l) -gt "0" ]; do
if [ "$count" -ge "$TIMEOUT" ];then
break
fi
echo -n "."
count=$(expr $count + 1)
sleep 1
done
echo ""
if [ $(/usr/sbin/virsh list --name --state-running | grep -v ^$ | wc -l) -gt "0" ];then
echo -n "The following guests are still running, destroying them: "
for machine in $(/usr/sbin/virsh list --name --state-running | grep -v ^$) ; do
/usr/sbin/virsh destroy $machine
echo -n "$machine "
done
sleep 2
fi
}
guests_managedsave() {
# apply managedsave on running and paused machines (as we can't distinguish between
# the two states while managedsave is being applied, so won't know when to finish waiting)
count=0
for machine in $(/usr/sbin/virsh list --name | grep -v ^$) ; do
/usr/sbin/virsh managedsave $machine &
done
echo -n "Waiting for managedsave to finish on all guests"
while [ $(/usr/sbin/virsh list --name | grep -v ^$ | wc -l) -gt "0" ]; do
if [ "$count" -ge "$TIMEOUT" ];then
break
fi
echo -n "."
count=$(expr $count + 1)
sleep 1
done
echo ""
if [ $(/usr/sbin/virsh list --name | grep -v ^$ | wc -l) -gt "0" ];then
echo -n "The following guests are still running, destroying them: "
for machine in $(/usr/sbin/virsh list --name | grep -v ^$) ; do
/usr/sbin/virsh destroy $machine
echo -n "$machine "
done
sleep 2
fi
}
check_processor() {
egrep 'vmx' /proc/cpuinfo > /dev/null
if [ "$?" -eq "0" ];then
MODULES="$MODULES kvm_intel kvm"
fi
check=$?
egrep 'svm' /proc/cpuinfo > /dev/null
if [ "$?" -eq "0" ];then
MODULES="$MODULES kvm_amd kvm"
fi
check=$(expr $check + $?)
if [ $check -eq "2" ];then
echo "Your system does not support KVM!"
fi
}
start_libvirtd() {
if [ -f $LIBVIRTD_PIDFILE ];then
echo "libvirt is already running..."
exit 1
fi
echo "Starting libvirtd: /usr/sbin/libvirtd -d "
mkdir -p $(dirname $LIBVIRTD_PIDFILE)
check_processor
/sbin/modprobe -a $MODULES
/usr/sbin/libvirtd -d -l $LIBVIRTD_OPTS
}
stop_libvirtd() {
if [ ! -f $LIBVIRTD_PIDFILE ];then
echo "libvirt is not running..."
exit 2
fi
guests_managedsave
check_processor
echo "Stopping libvirtd..."
for network in $(/usr/sbin/virsh net-list | tail -n +3 | awk '{print $1}'); do
/usr/sbin/virsh net-destroy "$network"
done
kill -TERM $(cat $LIBVIRTD_PIDFILE)
sleep 3
/sbin/modprobe -ra $MODULES 2>/dev/null
}
start_virtlogd() {
if [ -f $VIRTLOGD_PIDFILE ];then
echo "virtlogd is already running..."
exit 1
fi
echo "Starting virtlogd: /usr/sbin/virtlogd -d "
mkdir -p $(dirname $VIRTLOGD_PIDFILE)
/usr/sbin/virtlogd -d $VIRTLOGD_OPTS
}
stop_virtlogd() {
if [ ! -f $VIRTLOGD_PIDFILE ];then
echo "virtlogd is not running..."
exit 2
fi
echo "Stopping virtlogd..."
kill -TERM $(cat $VIRTLOGD_PIDFILE)
sleep 1
}
start_virtlockd() {
if [ -f $VIRTLOCKD_PIDFILE ];then
echo "virtlockd is already running..."
exit 1
fi
echo "Starting virtlockd: /usr/sbin/virtlockd -d "
mkdir -p $(dirname $VIRTLOCKD_PIDFILE)
/usr/sbin/virtlockd -d $VIRTLOCKD_OPTS
}
stop_virtlockd() {
if [ ! -f $VIRTLOCKD_PIDFILE ];then
echo "virtlockd is not running..."
exit 2
fi
echo "Stopping virtlockd..."
kill -TERM $(cat $VIRTLOCKD_PIDFILE)
sleep 1
}
case $1 in
start)
start_virtlockd
start_virtlogd
start_libvirtd
;;
stop)
stop_libvirtd
stop_virtlogd
stop_virtlockd
;;
restart)
stop_libvirtd
stop_virtlogd
stop_virtlockd
sleep 2
start_virtlockd
start_virtlogd
start_libvirtd
;;
guests_shutdown)
guests_shutdown
;;
guests_reboot)
guests_reboot
;;
*)
echo "Usage: $0 (start|stop|restart|guests_shutdown|guests_reboot)"
;;
esac
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