hello world (openresty)

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本文介绍如何安装OpenResty并配置Lua脚本。包括安装依赖、编译安装OpenResty、创建启动脚本及配置Lua脚本实现简单的Hello World功能。

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1、安装 openresty

apt-get install libreadline-dev libncurses5-dev libpcre3-dev libssl-dev perl make build-essential \
&& cd /tmp && wget https://openresty.org/download/ngx_openresty-1.9.3.2.tar.gz \
&& tar xzvf ngx_openresty-1.9.3.2.tar.gz \
&& cd ngx_openresty-1.9.3.2 \
&& ./configure --with-http_stub_status_module \
&& make \
&& make install

启动服务 /usr/local/openresty/nginx/sbin/nginx -c /usr/local/openresty/nginx/confnginx.conf

2、/etc/init.d/nginx 启动脚本

#!/bin/sh
### BEGIN INIT INFO
# Provides: nginx
# Required-Start: $network $remote_fs $local_fs
# Required-Stop: $network $remote_fs $local_fs
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Stop/start nginx
### END INIT INFO

# Author: Sergey Budnevitch <sb@nginx.com>

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

CONFFILE=/usr/local/openresty/nginx/conf/nginx.conf
#DAEMON=/usr/sbin/nginx
DAEMON=/usr/local/openresty/nginx/sbin/nginx
PIDFILE=/var/run/$NAME.pid
SCRIPTNAME=/etc/init.d/$NAME
SLEEPSEC=1
UPGRADEWAITLOOPS=5

[ -x $DAEMON ] || exit 0

[ -r /etc/default/$NAME ] && . /etc/default/$NAME

DAEMON_ARGS="-c $CONFFILE $DAEMON_ARGS"

. /lib/init/vars.sh

. /lib/lsb/init-functions

do_start()
{
start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $DAEMON -- \
$DAEMON_ARGS
RETVAL="$?"
return "$RETVAL"
}

do_stop()
{
# Return
# 0 if daemon has been stopped
# 1 if daemon was already stopped
# 2 if daemon could not be stopped
# other if a failure occurred
start-stop-daemon --stop --quiet --oknodo --retry=TERM/30/KILL/5 --pidfile $PIDFILE
RETVAL="$?"
rm -f $PIDFILE
return "$RETVAL"
}

do_reload() {
#
start-stop-daemon --stop --signal HUP --quiet --pidfile $PIDFILE
RETVAL="$?"
return "$RETVAL"
}

do_configtest() {
if [ "$#" -ne 0 ]; then
case "$1" in
-q)
FLAG=$1
;;
*)
;;
esac
shift
fi
$DAEMON -t $FLAG -c $CONFFILE
RETVAL="$?"
return $RETVAL
}

do_upgrade() {
OLDBINPIDFILE=$PIDFILE.oldbin

do_configtest -q || return 6
start-stop-daemon --stop --signal USR2 --quiet --pidfile $PIDFILE
RETVAL="$?"

for i in `/usr/bin/seq $UPGRADEWAITLOOPS`; do
sleep $SLEEPSEC
if [ -f $OLDBINPIDFILE -a -f $PIDFILE ]; then
start-stop-daemon --stop --signal QUIT --quiet --pidfile $OLDBINPIDFILE
RETVAL="$?"
return
fi
done

echo $"Upgrade failed!"
RETVAL=1
return $RETVAL
}

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) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
esac
;;
status)
status_of_proc -p "$PIDFILE" "$DAEMON" "$NAME" && exit 0 || exit $?
;;
configtest)
do_configtest
;;
upgrade)
do_upgrade
;;
reload|force-reload)
log_daemon_msg "Reloading $DESC" "$NAME"
do_reload
log_end_msg $?
;;
restart|force-reload)
log_daemon_msg "Restarting $DESC" "$NAME"
do_configtest -q || exit $RETVAL
do_stop
case "$?" in
0|1)
do_start
case "$?" in
0) log_end_msg 0 ;;
1) log_end_msg 1 ;; # Old process is still running
*) log_end_msg 1 ;; # Failed to start
esac
;;
*)
# Failed to stop
log_end_msg 1
;;
esac
;;
*)
echo "Usage: $SCRIPTNAME {start|stop|status|restart|reload|force-reload|upgrade|configtest}" >&2
exit 3
;;
esac

exit $RETVAL