#!/bin/sh
# event script to integrate with gpfs cnfs

. $CTDB_BASE/functions

loadconfig

STATEDIR=$CTDB_VARDIR/state/gpfs


check_if_healthy() {
        mkdir -p $STATEDIR/fs

        [ -f "$STATEDIR/gpfsnoquorum" ] && {
                logger No GPFS quorum. Node is UNHEALTHY
                $CTDB_BASE/events.d/62.cnfs unhealthy "No GPFS quorum. Nodfe is UNHEALTHY."
		exit 0
	}

        logger All required GPFS resources are available. CNFS part is healthy.
        $CTDB_BASE/events.d/62.cnfs healthy
}

case "$1" in
    startup)
        mkdir -p $STATEDIR
        check_if_healthy
        ;;


    gpfsquorumreached)
        mkdir -p $STATEDIR
        rm -f "$STATEDIR/gpfsnoquorum"
        logger "GPFS quorum has been reached."
        check_if_healthy
        ;;

    gpfsquorumloss)
        mkdir -p $STATEDIR
        touch "$STATEDIR/gpfsnoquorum"
        logger "GPFS quorum has been lost."
        $CTDB_BASE/events.d/62.cnfs unhealthy "GPFS quorum was lost! Marking node as UNHEALTHY."
        ;;

    unhealthy)
        # Mark the node as UNHEALTHY which means all public addresses
        # will be migrated off the node.
        shift
        TMPFILE=/tmp/ctdb.cnfs.$$
        echo "$*" > $TMPFILE
        ctdb_setstatus unhealthy $TMPFILE
        rm $TMPFILE

        # force a monitor event so we pick up immediately that this script
        # will now fail and make the node unhealthy.
        ctdb eventscript monitor

        # Wait until we no longer serve any ip addresses at all
        PNN=`ctdb pnn | cut -d: -f2`
        while `ctdb -Y ip | cut -d: -f3 | egrep "^$PNN$" >/dev/null`; do
                sleep 1
        done
        ;;

    healthy)
        # mark the node as healthy
        ctdb_setstatus healthy
        ;;


    monitor)
        ctdb_checkstatus
        exit $?
        ;;

    *)
        ctdb_standard_event_handler "$@"
        ;;
esac

exit 0