• rc.libvirt

    Data:2010.05.26 | Categorialinux, servidores, virtualização | Tags: ,,

    Segue abaixo um script de start e stop para o serviço libvirtd que fiz para Slackware:

    #!/bin/bash

MODULES="tun vhost_net"
PIDFILE="/var/run/libvirtd.pid"
TIMEOUT=${TIMEOUT:-40}
OPTS=${OPTS:-""}

check_running_machines() {

  i=0

  for j in `virsh list | grep running | awk '{print $2;}'` ; do
    virsh shutdown $j
  done

  echo -n "Waiting machines"

  while [ $(virsh list | grep running | wc -l) -gt "0" ]; do
    if [ "$i" -ge "$TIMEOUT" ];then
      break
    fi
    echo -n "."
    i=`expr $i + 1`
    sleep 1
  done

  echo ""

  if [ $(virsh list | grep running | wc -l) -gt "0" ];then

    echo -n "The following machines are still running, forcing shutdown: "
    for j in `virsh list | grep running | awk '{print $2;}'` ; do
      virsh destroy $j
      echo -n "$j "
    done

    echo ""
    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 systems does not support KVM!"
  fi

}

start() {
  if [ -f $PIDFILE ];then
    echo "libvirt is already running..."
    exit 1
  fi
  echo "Starting libvirtd..."
  check_processor
  modprobe -a $MODULES
  libvirtd -d -l $OPTS
}

stop() {
  if [ ! -f $PIDFILE ];then
    echo "libvirt is not running..."
    exit 2
  fi
  check_running_machines
  check_processor
  echo "Stopping libvirtd..."
  kill -TERM `cat $PIDFILE`
  modprobe -ra $MODULES
}

case $1 in
start)
  start
  ;;
stop)
  stop
  ;;
restart)
  stop
  sleep 1
  start
  ;;
*)
  echo "Usage: $0 (start|stop|restart)"
  ;;
esac