Service Nginx

nginx.sh

#!/bin/sh

PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/sbin/nginx
NAME=nginx
DESC=nginx

if [ -r /etc/default/nginx ]; then
	. /etc/default/nginx
fi

test -x $DAEMON || exit 0

. /lib/init/vars.sh
. /lib/lsb/init-functions

PID=$(awk -F'[ \t;]+' '/[^#]pid/ {print $2}' /etc/nginx/nginx.conf)
if [ -z "$PID" ]
then
	PID=/run/nginx.pid
fi

if [ -n "$ULIMIT" ]; then
	ulimit $ULIMIT
fi

do_start()
{
	start-stop-daemon --start --quiet --pidfile $PID --exec $DAEMON --test > /dev/null \
		|| return 1
	start-stop-daemon --start --quiet --pidfile $PID --exec $DAEMON -- \
		$DAEMON_OPTS 2>/dev/null \
		|| return 2
}

test_nginx_config() {
	$DAEMON -t $DAEMON_OPTS >/dev/null 2>&1
}

do_stop()
{
	start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 --pidfile $PID --name $NAME
	RETVAL="$?"

	sleep 1
	return "$RETVAL"
}

do_reload() {
	start-stop-daemon --stop --signal HUP --quiet --pidfile $PID --name $NAME
	return 0
}

do_rotate() {
	start-stop-daemon --stop --signal USR1 --quiet --pidfile $PID --name $NAME
	return 0
}

do_upgrade() {
	if start-stop-daemon --stop --signal USR2 --quiet --pidfile $PID --name $NAME; then
		while [ ! -s "${PID}.oldbin" ] || [ ! -s "${PID}" ]; do
			cnt=`expr $cnt + 1`
			if [ $cnt -gt 10 ]; then
				return 2
			fi
			sleep 1
		done

		if start-stop-daemon --stop --signal QUIT --quiet --pidfile "${PID}.oldbin" --name $NAME; then
			return 0
		else
			return 3
		fi
	else
		return 1
	fi
}

case "$1" in
	start)
		[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
		do_start
		case "$?" in
			0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
			2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
		esac
		;;
	stop)
		[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
		do_stop
		case "$?" in
			0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
			2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
		esac
		;;
	restart)
		log_daemon_msg "Restarting $DESC" "$NAME"

		if ! test_nginx_config; then
			log_end_msg 1
			exit 0
		fi

		do_stop
		case "$?" in
			0|1)
				do_start
				case "$?" in
					0) log_end_msg 0 ;;
					1) log_end_msg 1 ;;
					*) log_end_msg 1 ;;
				esac
				;;
			*)
				log_end_msg 1
				;;
		esac
		;;
	reload|force-reload)
		log_daemon_msg "Reloading $DESC configuration" "$NAME"

		if ! test_nginx_config; then
			log_end_msg 1
			exit 0
		fi

		do_reload
		log_end_msg $?
		;;
	configtest|testconfig)
		log_daemon_msg "Testing $DESC configuration"
		test_nginx_config
		log_end_msg $?
		;;
	status)
		status_of_proc -p $PID "$DAEMON" "$NAME" && exit 0 || exit $?
		;;
	upgrade)
		log_daemon_msg "Upgrading binary" "$NAME"
		do_upgrade
		log_end_msg 0
		;;
	rotate)
		log_daemon_msg "Re-opening $DESC log files" "$NAME"
		do_rotate
		log_end_msg $?
		;;
	*)
		echo "Usage: $NAME {start|stop|restart|reload|force-reload|status|configtest|rotate|upgrade}" >&2
		exit 3
		;;
esac

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