Synnefo » snf-ganeti

#!/bin/bash

# ganeti kvm instance poweroff

# based on skeleton from Debian GNU/Linux

### BEGIN INIT INFO

# Provides:          ganeti-kvm-poweroff

# Required-Start:

# Required-Stop:     drbd qemu-kvm $local_fs

# Default-Start:

# Default-Stop: 0 1 6

# Short-Description: Poweroff Ganeti KVM instances

# Description: Sends system_powerdown command to Ganeti instances, otherwise

# they will be killed.

### END INIT INFO

shopt -s nullglob

PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin

DESC="Ganeti KVM instance poweroff "

. /lib/lsb/init-functions

CONTROL_PATH="@LOCALSTATEDIR@/run/ganeti/kvm-hypervisor/ctrl"

SCRIPTNAME="@SYSCONFDIR@/init.d/ganeti-kvm-poweroff"

TIMEOUT=60

do_kvm_poweroff () {

    # shutdown VMs and remove sockets of those not running

    for vm_monitor in $CONTROL_PATH/*.monitor; do

        if ! echo system_powerdown | \

            socat -U UNIX:$vm_monitor STDIO > /dev/null 2>&1; then

            # remove disconnected socket

            rm -f $vm_monitor

        fi

    done

    log_action_begin_msg "Waiting VMs to poweroff"

    waiting=true

    remaning=$TIMEOUT

    while $waiting && [ $remaning -ne 0 ]; do

        if [[ -z "$(find $CONTROL_PATH -name '*.monitor')" ]]; then

            break

        fi

        echo -n "."

        for vm_monitor in $CONTROL_PATH/*.monitor; do

            if ! echo | socat -U UNIX:$vm_monitor STDIO > /dev/null 2>&1; then

                rm -rf $vm_monitor

            fi

        done

        sleep 5

        let remaining-=5 1

    done

    if [[ -z "$(find $CONTROL_PATH -name '*.monitor')" ]]; then

        log_action_end_msg 0

    else

        log_action_end_msg 1 "some VMs did not shutdown"

    fi

}

case "$1" in

  start)

    # No-op

    ;;

  restart|reload|force-reload)

    echo "Error: argument '$1' not supported" >&2

    exit 3

    ;;

  stop)

    do_kvm_poweroff

    ;;

  *)

    echo "Usage: $0 start|stop" >&2

    exit 3

    ;;

esac