node_service

#!/bin/bash
PIDFILE="/home/pi/pid/node.pid"
LOGFILE="/home/pi/logs/node.log"
NODEUSER="pi"
APPLICATION_PATH="/home/node/server.js"
NAME="infonaytto"

start() {
    echo "Starting $NAME"
    # We're calling forever directly without using start-stop-daemon for the
    # sake of simplicity when it comes to environment, and because this way
    # the script will work whether it is executed directly or via the service
    # utility.
    #
    # The minUptime and spinSleepTime settings stop Forever from thrashing if
    # the application fails immediately on launch. This is generally necessary to
    # avoid loading development servers to the point of failure every time
    # someone makes an error in application initialization code, or bringing down
    # production servers the same way if a database or other critical service
    # suddenly becomes inaccessible.
    #
    # The pidfile contains the child process pid, not the forever process pid.
    # We're only using it as a marker for whether or not the process is
    # running.
    #
    # Note that redirecting the output to /dev/null (or anywhere) is necessary
    # to make this script work if provisioning the service via Chef.
    su $NODEUSER -c "touch $PIDFILE"
    su $NODEUSER -c "touch $LOGFILE"
    su $NODEUSER -c "forever start $APPLICATION_PATH -l $LOGFILE  -o $LOGFILE  -e $LOGFILE &"
    RETVAL=$?
}

stop() {

	su $NODEUSER -c "forever list" | grep -q "$APPLICATION_PATH"
    if [ "$?" -eq "0" ]; then
        echo "Shutting down $NAME"
        # Tell Forever to stop the process.
        su $NODEUSER -c "forever stop $APPLICATION_PATH 2>&1 > /dev/null"
        RETVAL=$?
    else
        echo "$NAME is not running."
        RETVAL=0
    fi
}

restart() {
    stop
    start
}

status() {
    # On Ubuntu this isn't even necessary. To find out whether the service is
    # running, use "service my-application status" which bypasses this script
    # entirely provided you used the service utility to start the process.
    #
    # The commented line below is the obvious way of checking whether or not a
    # process is currently running via Forever, but in recent Forever versions
    # when the service is started during Chef provisioning a dead pipe is left
    # behind somewhere and that causes an EPIPE exception to be thrown.
    # forever list | grep -q "$APPLICATION_PATH"
    #
    # So instead we add an extra layer of indirection with this to bypass that
    # issue.
    echo `forever list` | grep -q "$APPLICATION_PATH"
    if [ "$?" -eq "0" ]; then
        echo "$NAME is running."
        RETVAL=0
    else
        echo "$NAME is not running."
        RETVAL=3
    fi
}

case "$1" in
    start)
        start
        ;;
    stop)
        stop
        ;;
    status)
        status
        ;;
    restart)
        restart
        ;;
    *)
        echo "Usage: {start|stop|status|restart}"
        exit 1
        ;;
esac
exit $RETVAL