scheduler-init.sh

#!/bin/sh
#
# indico-scheduler        init file for starting up the indico scheduler
#
# chkconfig:   - 20 80
# description: Starts and stops the zodb daemon.

### BEGIN INIT INFO
# Provides: indico-scheduler
# Required-Start: $local_fs $network
# Required-Stop: $local_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start the Indico scheduler
# Description:       Indico scheduler
### END INIT INFO

name="indico_scheduler"
exec="/usr/bin/$name"
exec="/home/adrian/dev/indico/env/bin/indico_scheduler"  # TODO remove

start() {
    [ -x $exec ] || exit 5
    echo -n $"Starting $name: "
    $exec start
    retval=$?
    echo
    return $retval
}

stop() {
    echo -n $"Stopping $name: "
    $exec stop
    retval=$?
    echo
    # Don't check process list if the scheduler was on another machine
    [ $1 -eq 2 ] && return $retval
    # Check processes and kill if necessary
    pid=$(pgrep -f indico_scheduler)
    [ $? -ne 0 ] && return 0
    sleep 2
    echo "Scheduler is still running, killing $pid"
    kill -9 $pid
    pgrep -f indico_scheduler || return 0 && return 1
}

restart() {
    stop $1
    start
}

reload() {
    false
}

rh_status() {
    pid=$($exec check -q)
    retval=$?
    if [ $retval -eq 0 ]; then
        echo "$name (pid $pid) is running"
    elif [ $retval -eq 1 ]; then
        echo "$name is not running"
    elif [ $retval -eq 2 ]; then
        echo "$name is broken or running on another machine!"
    fi
    return $retval
}

rh_status_q() {
    rh_status >/dev/null 2>&1
}


case "$1" in
    start)
        rh_status_q
        retval=$?
        if [ $retval -eq 2 ]; then
            echo 'Error, scheduler might be running on another machine or broken'
            exit 1
        fi
        [ $retval -eq 1 ] || exit 0
        $1
        ;;
    stop)
        rh_status_q
        retval=$?
        [ $retval -eq 2 ] && echo 'Warning, scheduler might be running on another machine or broken'
        [ $retval -eq 1 ] && exit 0
        $1 $retval
        ;;
    restart)
        rh_status_q
        retval=$?
        if [ $retval -eq 2 ]; then
            echo 'Error, scheduler might be running on another machine or broken'
            exit 1
        fi
        $1 $retval
        ;;
    reload)
        rh_status_q
        [ $? -eq 1 ] && exit 7
        $1
        ;;
    force-reload)
        force_reload
        ;;
    status)
        rh_status
        ;;
    condrestart|try-restart)
        rh_status_q || exit 0
        restart
        ;;
    *)
        echo $"Usage: $0 {start|stop|status|restart|condrestart|try-restart}"
        exit 2
esac
exit $?