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#!@BASH_PATH@

# Authors:
#  Andrew Beekhof <abeekhof@redhat.com>
#  Fabio M. Di Nitto <fdinitto@redhat.com>
#
# License: Revised BSD

# chkconfig: - 99 01
# description: Pacemaker Cluster Manager
# processname: pacemakerd
#
### BEGIN INIT INFO
# Provides:		pacemaker
# Required-Start:	$network $remote_fs corosync
# Should-Start:		$syslog
# Required-Stop:	$network $remote_fs corosync
# Default-Start:
# Default-Stop:
# Short-Description:	Starts and stops Pacemaker Cluster Manager.
# Description:		Starts and stops Pacemaker Cluster Manager.
### END INIT INFO

desc="Pacemaker Cluster Manager"
prog="pacemakerd"

# set secure PATH
PATH="/sbin:/bin:/usr/sbin:/usr/bin:@sbindir@"

checkrc() {
    if [ $? = 0 ]; then
	success
    else
	failure
    fi
}

success()
{
	echo -ne "[  OK  ]\r"
}

failure()
{
	echo -ne "[FAILED]\r"
}

log() 
{
    logger -t pacemaker -p daemon.notice "$*"
}

notify()
{
    log "$*"
    echo -n "$*"
}

status()
{
	pid=$(pidof $1 2>/dev/null)
	local rtrn=$?
	if [ $rtrn -ne 0 ]; then
		echo "$1 is stopped"
		if [ -f "@localstatedir@/run/$prog.pid" ]; then
			rtrn=1
		else
			rtrn=3
		fi
	else
		echo "$1 (pid $pid) is running..."
	fi
	return $rtrn
}

if [ -d @CONFIGDIR@ ]; then
	[ -f @INITDIR@/functions ] && . @INITDIR@/functions
set -a
	[ -f @CONFIGDIR@/pacemaker ] && . @CONFIGDIR@/pacemaker
	[ -f @CONFIGDIR@/sbd ] && . @CONFIGDIR@/sbd
set +a
fi

LOCK_DIR="."
if [ -d "@localstatedir@/lock/subsys" ]; then
	LOCK_DIR="@localstatedir@/lock/subsys" 
elif [ -d "@localstatedir@/lock" ]; then
	LOCK_DIR="@localstatedir@/lock" 
fi
[ -z "$LOCK_FILE" ] && LOCK_FILE="$LOCK_DIR/pacemaker"

# Check if there is a valid watchdog-device configured in sbd config
if [ x != "x$SBD_WATCHDOG_DEV" -a "/dev/null" != "$SBD_WATCHDOG_DEV" -a -c "$SBD_WATCHDOG_DEV" ]; then
	# enhance for unavailable chkconfig - don't touch sbd for now
	if chkconfig --list sbd_helper 2>/dev/null | grep -q ":on"; then
		SBD_SERVICE=sbd_helper
	fi
fi

start()
{
	notify "Starting $desc"

	# most recent distributions use tmpfs for $@localstatedir@/run
	# to avoid to clean it up on every boot.
	# they also assume that init scripts will create
	# required subdirectories for proper operations
	mkdir -p "@localstatedir@/run"

	if status $prog > /dev/null 2>&1; then
		success
	else
		$prog > /dev/null 2>&1 &

		# Time to connect to corosync and fail
		sleep 5

		if status $prog > /dev/null 2>&1; then
			touch "$LOCK_FILE"
			pidof $prog > "@localstatedir@/run/$prog.pid"
			success
		else
			failure
			rtrn=1
		fi
	fi
	echo
}

stop()
{
	shutdown_prog=$prog
	if ! status $prog > /dev/null 2>&1; then
	    shutdown_prog="pacemaker-controld"
	fi

	if status $shutdown_prog > /dev/null 2>&1; then
	    notify "Signaling $desc to terminate"
	    kill -TERM $(pidof $prog) > /dev/null 2>&1
	    checkrc
	    echo

	    notify "Waiting for cluster services to unload"
	    while status $prog > /dev/null 2>&1; do
		sleep 1
		echo -n "."
	    done
	else
	    echo -n "$desc is already stopped"
	fi

	rm -f "$LOCK_FILE"
	rm -f "@localstatedir@/run/$prog.pid"
	killall -q -9 pacemakerd pacemaker-attrd pacemaker-based \
		pacemaker-controld pacemaker-execd pacemaker-fenced \
		pacemaker-schedulerd 
	success
	echo
}

rtrn=0

case "$1" in
start)
	start
;;
restart|reload|force-reload)
	stop
	start
;;
condrestart|try-restart)
	if status $prog > /dev/null 2>&1; then
	    stop
	    start
	fi
;;
status)
	status $prog
	rtrn=$?
;;
stop)
	stop
	[ "x$SBD_SERVICE" != x ] && service $SBD_SERVICE stop
;;
*)
	echo "usage: $0 {start|stop|restart|reload|force-reload|condrestart|try-restart|status}"
	rtrn=2
;;
esac

exit $rtrn