launchanapp

sudo bash -c ‘cat << \EOF > /etc/init.d/ec2sampleapp

APP_EXEC=”/usr/bin/java -Xmx700m -jar /home/ec2-user/ec2-masterclass-sample-app.jar
NAME=ec2sampleapp
PIDFILE=/var/run/$NAME.pid
LOG_FILE=”/home/ec2-user/$NAME.log”
SCRIPTNAME=/etc/init.d/$NAME
RETVAL=0

start() {
	echo “Starting $NAME…”
	$APP_EXEC 1>”$LOG_FILE” 2>&1 &
	echo $! > “$PIDFILE”
	echo “$NAME started with pid $!”
}  

status() {
	printf “%-50s” “Checking $NAME…”
	if [ -f $PIDFILE ]; then
		PID=$(cat $PIDFILE)
		if [ -z “$(ps axf | grep ${PID} | grep -v grep)” ]; then
			printf “Process dead but pidfile exists”
		else
			echo “Running”
		fi
	else
		printf “Service not running”
	fi
}

stop(){
	printf “%-50s” “Stopping $NAME”
	PID=cat $PIDFILE
	if [ -f $PIDFILE ]; then
		kill -HUP $PID
		printf “%s\n” “Ok”
		rm -f $PIDFILE
	else 
		printf “%s\n” “pidfile not found”
	fi
}

case “$1” in
	start)
	start
	;;
	status)
	status
	;;
	stop)
	stop
	;;
	restart)
		$0 stop
		$0 start
	;;
	*)
		echo “Usage: $0 {start|status|stop|restart}”
		exit 1
	;;
Esac
EOF’