tornado + supervisor + nginx 的一点记录

看了比较多的blog基本都是这个架构：

supervisor ------------ app1

|-------app2

|-------....

|-------appn

|-------nginx

|-------redis

统一都交给supervisor来管理。总觉得哪里不对：

1） nginx作为supervisor的子进程，会有问题，它貌似会不断的去执行启动（导致大量的错误日志：端口已经被占用）

2)   nginx 和 redis 的启动与配置与app之间应该是没有耦合关系的，和supervisor也是没有耦合关系的。

===================

自己整理微调如下：

-----------------------

supervisor -----|------- app1

|------- appn

nginx   ---------|---------proxy1

|---------proxy2

redis

这个部署架构意味着要做多个脚本，并加入到开机启动项里面去。supervisor/nginx/redis各需要一个。

nginx 脚本如下：

#!/bin/bash

# nginx Startup script for the Nginx HTTP Server

# it is v.0.0.2 version.

# chkconfig: - 85 15

# description: Nginx is a high-performance web and proxy server.

#              It has a lot of features, but it's not for everyone.

# processname: nginx

# pidfile: /var/run/nginx.pid

# config: /usr/local/nginx/conf/nginx.conf

nginxd=/usr/local/nginx/sbin/nginx

nginx_config=/usr/local/nginx/conf/nginx.conf

nginx_pid=/var/run/nginx.pid

RETVAL=0

prog="nginx"

# Source function library.

. /etc/rc.d/init.d/functions

# Source networking configuration.

. /etc/sysconfig/network

# Check that networking is up.

[ ${NETWORKING} = "no" ] && exit 0

[ -x $nginxd ] || exit 0

# Start nginx daemons functions.

start() {

if [ -e $nginx_pid ];then

   echo "nginx already running...."

   exit 1

fi

   echo -n $"Starting $prog: "

   daemon $nginxd -c ${nginx_config}

   RETVAL=$?

   echo

   [ $RETVAL = 0 ] && touch /var/lock/subsys/nginx

   return $RETVAL

}

# Stop nginx daemons functions.

stop() {

        echo -n $"Stopping $prog: "

        killproc $nginxd

        RETVAL=$?

        echo

        [ $RETVAL = 0 ] && rm -f /var/lock/subsys/nginx /var/run/nginx.pid

}

# reload nginx service functions.

reload() {

    echo -n $"Reloading $prog: "

    #kill -HUP `cat ${nginx_pid}`

    killproc $nginxd -HUP

    RETVAL=$?

    echo

}

# See how we were called.

case "$1" in

start)

        start

        ;;

stop)

        stop

        ;;

reload)

        reload

        ;;

restart)

        stop

        start

        ;;

status)

        status $prog

        RETVAL=$?

        ;;

*)

        echo $"Usage: $prog {start|stop|restart|reload|status|help}"

        exit 1

esac

exit $RETVAL

　　

supervisor 由于根具体的应用对应，因此脚本也应该根据具体应用命名，比如有一个应用叫做 didibus

#!/bin/sh

#

# /etc/rc.d/init.d/supervisord

#

# Supervisor is a client/server system that

# allows its users to monitor and control a

# number of processes on UNIX-like operating

# systems.

#

# chkconfig: - 64 36

# description: Supervisor Server

# processname: supervisord

# Source init functions

. /etc/rc.d/init.d/functions

prog="didibus"

prefix="/usr"

exec_prefix="${prefix}"

prog_bin="${exec_prefix}/bin/supervisord"

PIDFILE="/var/run/$prog.pid"

config_file="/path/to/didibus/supervisord.conf"

start()

{

       echo -n $"Starting $prog: "

       daemon $prog_bin -c $config_file --pidfile $PIDFILE

       [ -f $PIDFILE ] && success $"$prog startup" || failure $"$prog startup"

       echo

}

stop()

{

       echo -n $"Shutting down $prog: "

       echo

       for i in {1..4}

           do supervisorctl -c $config_file stop cool_talk_server$i

       done

       [ -f $PIDFILE ] && killproc $prog || success $"$prog shutdown"

       echo

}

restart_childs()

{

       echo -n $"restarting childs of $prog: "

       echo

       for i in {1..4}

           do supervisorctl -c $config_file restart didibus$i

       done

}

case "$1" in

 start)

   start

 ;;

 stop)

   stop

 ;;

 status)

       status $prog

 ;;

 restart)

   stop

   start

 ;;

 restart_childs)

   restart_childs

 ;;

 *)

   echo "Usage: $0 {start|stop|restart|restart_childs|status}"

 ;;

esac

　

然后将脚本放在/etc/init.d/目录下，并加入启动项，对于各种类型的linux，命令有所差异，centos如下：

chkconfig --add service_script

chkconfig service_script on