Synnefo

#! /bin/sh

### BEGIN INIT INFO

# Provides:          snf-ganeti-eventd

# Required-Start:    $remote_fs $syslog ganeti

# Required-Stop:     $remote_fs $syslog 

# Default-Start:     2 3 4 5

# Default-Stop:      0 1 6

# X-Start-After:	 ganeti

# Short-Description: Synnefo ganeti-eventd daemon

# Description:       ganeti-eventd is a daemon 

### END INIT INFO

set -e

# /etc/init.d/snf-ganeti-eventd: start and stop the ganeti-eventd daemon

# script skeleton stolen from rsyncd

DAEMON=/usr/sbin/snf-ganeti-eventd

SNF_EVENTD_PID_FILE=/var/run/snf-ganeti-eventd.pid

SNF_EVENTD_DEFAULTS=/etc/default/snf-ganeti-eventd

SNF_EVENTD_OPTS=''

SNF_EVENTD_ENABLE=true

SNF_USER="root"

test -x $DAEMON || exit 0

. /lib/lsb/init-functions

if [ -s $SNF_EVENTD_DEFAULTS ]; then

    . $SNF_EVENTD_DEFAULTS

fi

export PATH="${PATH:+$PATH:}/usr/sbin:/sbin"

check_ganeti_master() {

    MASTER=`/usr/sbin/gnt-cluster getmaster`

    HOST=`/bin/hostname -f`

    if [ "x$MASTER" != x$HOST ]; then

        log_warning_msg "snf-ganeti-eventd should run on the ganeti master only, aborting start (use 'force-start' if you know what you are doing)"

        log_end_msg 0

        exit 0

    fi

}

eventd_start() {

    if start-stop-daemon --start --chuid $SNF_USER --pidfile $SNF_EVENTD_PID_FILE \

		--exec $DAEMON -- $SNF_EVENTD_OPTS

    then

        rc=0

        sleep 1

        if ! kill -0 $(cat $SNF_EVENTD_PID_FILE) >/dev/null 2>&1; then

            log_failure_msg "snf-ganeti-eventd daemon failed to start"

            rc=1

        fi

    else

        rc=1

    fi

    if [ $rc -eq 0 ]; then

        log_end_msg 0

    else

        log_end_msg 1

        rm -f $SNF_EVENTD_PID_FILE

    fi

} # eventd_start

case "$1" in

  start)

        # Check if we are on the Ganeti master node

        check_ganeti_master

        if "$SNF_EVENTD_ENABLE"; then

            log_daemon_msg "Starting snf-ganeti-eventd daemon" "snf-ganeti-eventd"

            if [ -s $SNF_EVENTD_PID_FILE ] && kill -0 $(cat $SNF_EVENTD_PID_FILE) >/dev/null 2>&1; then

                log_progress_msg "apparently already running"

                log_end_msg 0

                exit 0

            fi

            eventd_start

        else

            if [ -s "$SNF_EVENTD_DEFAULTS" ]; then

                [ "$VERBOSE" != no ] && log_warning_msg "snf-ganeti-eventd daemon not enabled in $SNF_EVENTD_DEFAULTS, not starting..."

            fi

        fi

        ;;

  force-start)

        if "$SNF_EVENTD_ENABLE"; then

            log_daemon_msg "Starting snf-ganeti-eventd daemon" "snf-ganeti-eventd"

        else

            if [ -s "$SNF_EVENTD_DEFAULTS" ]; then

                [ "$VERBOSE" != no ] && log_warning_msg "snf-ganeti-eventd daemon not enabled in $SNF_EVENTD_DEFAULTS, starting anyway"

            fi

        fi

        if [ -s $SNF_EVENTD_PID_FILE ] && kill -0 $(cat $SNF_EVENTD_PID_FILE) >/dev/null 2>&1; then

            log_progress_msg "apparently already running"

            log_end_msg 0

            exit 0

        fi

        eventd_start

        ;;

  stop)

        log_daemon_msg "Stopping snf-ganeti-eventd daemon" "snf-ganeti-eventd"

        start-stop-daemon --stop --quiet --oknodo --pidfile $SNF_EVENTD_PID_FILE

        log_end_msg $?

        rm -f $SNF_EVENTD_PID_FILE

        ;;

  restart)

        set +e

        if $SNF_EVENTD_ENABLE; then

            log_daemon_msg "Restarting snf-ganeti-eventd daemon" "snf-ganeti-eventd"

            if [ -s $SNF_EVENTD_PID_FILE ] && kill -0 $(cat $SNF_EVENTD_PID_FILE) >/dev/null 2>&1; then

                start-stop-daemon --stop --quiet --oknodo --pidfile $SNF_EVENTD_PID_FILE || true

                sleep 1

            else

                log_warning_msg "snf-ganeti-eventd daemon not running, attempting to start."

                rm -f $SNF_EVENTD_PID_FILE

            fi

            # Check if we are on the Ganeti master node, before starting

            check_ganeti_master

            eventd_start

        else

            if [ -s "$SNF_EVENTD_DEFAULTS" ]; then

                [ "$VERBOSE" != no ] && log_warning_msg "snf-ganeti-eventd daemon not enabled in $SNF_EVENTD_DEFAULTS, not starting..."

            fi

        fi

        ;;

  status)

        status_of_proc -p $SNF_EVENTD_PID_FILE "$DAEMON" ganeti-eventd

        exit $? # notreached due to set -e

        ;;

  *)

        echo "Usage: /etc/init.d/snf-ganeti-eventd {start|stop|restart|force-start|status}"

        exit 1

esac

exit 0