学习tornado有一周多了，自己按着demo中的例子手动搬代码，收获还是有的，加深了理解。demo: http://demo.pythoner.com/itt2zh/ch8.html
大概明白了它怎么工作后，开始部署一个线上环境跑跑。
nginx: 分配客户端请求给upstream组中列出的Tornado实例。其中静态目录的文件由nginx直接提供。
supervisord: tornado进程管理。
tornado: 功能实现。
关于nginx
在/etc/nginx/site-enable/default中 新增：
upstream frontends{ server 127.0.0.1:8880; } server { listen 8000; location / { proxy_read_timeout 1800; proxy_pass_header Server; proxy_set_header Host $http_host; proxy_redirect off; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Scheme $scheme; proxy_pass http://frontends; } }
关于supervisord
确认是否已install supervisord，安装后可查看状态“sudo supervisorctl status”;
$ vi /etc/supervisor/supervisord.conf
; supervisor config file [unix_http_server] file=/var/run/supervisor.sock ; (the path to the socket file) chmod=0700 ; sockef file mode (default 0700) [supervisord] logfile=/var/log/supervisor/supervisord.log ; (main log file;default $CWD/supervisord.log) pidfile=/var/run/supervisord.pid ; (supervisord pidfile;default supervisord.pid) childlogdir=/var/log/supervisor ; ('AUTO' child log dir, default $TEMP) ; the below section must remain in the config file for RPC ; (supervisorctl/web interface) to work, additional interfaces may be ; added by defining them in separate rpcinterface: sections [rpcinterface:supervisor] supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface [supervisorctl] serverurl=unix:///var/run/supervisor.sock ; use a unix:// URL for a unix socket ; The [include] section can just contain the "files" setting. This ; setting can list multiple files (separated by whitespace or ; newlines). It can also contain wildcards. The filenames are ; interpreted as relative to this file. Included files *cannot* ; include files themselves. [include] files = /etc/supervisor/conf.d/*.conf
"
[include]
files = /etc/supervisor/conf.d/*.conf
"
把supervisord 加入 /etc/init.d 中， 把保存为 supervisord , 内容如下：
#! /bin/sh # # skeleton example file to build /etc/init.d/ scripts. # This file should be used to construct scripts for /etc/init.d. # # Written by Miquel van Smoorenburg <miquels@cistron.nl>. # Modified for Debian # by Ian Murdock <imurdock@gnu.ai.mit.edu>. # Further changes by Javier Fernandez-Sanguino <jfs@debian.org> # # Version: @(#)skeleton 1.9 26-Feb-2001 miquels@cistron.nl # ### BEGIN INIT INFO # Provides: supervisor # Required-Start: $remote_fs $network $named # Required-Stop: $remote_fs $network $named # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: Start/stop supervisor # Description: Start/stop supervisor daemon and its configured # subprocesses. ### END INIT INFO . /lib/lsb/init-functions PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin DAEMON=/usr/bin/supervisord NAME=supervisord DESC=supervisor test -x $DAEMON || exit 0 LOGDIR=/var/log/supervisor PIDFILE=/var/run/$NAME.pid DODTIME=5 # Time to wait for the server to die, in seconds # If this value is set too low you might not # let some servers to die gracefully and # 'restart' will not work # Include supervisor defaults if available if [ -f /etc/default/supervisor ] ; then . /etc/default/supervisor fi DAEMON_OPTS="-c /etc/supervisor/supervisord.conf $DAEMON_OPTS" set -e running_pid() { # Check if a given process pid's cmdline matches a given name pid=$1 name=$2 [ -z "$pid" ] && return 1 [ ! -d /proc/$pid ] && return 1 (cat /proc/$pid/cmdline | tr " 00" " "|grep -q $name) || return 1 return 0 } running() { # Check if the process is running looking at /proc # (works for all users) # No pidfile, probably no daemon present [ ! -f "$PIDFILE" ] && return 1 # Obtain the pid and check it against the binary name pid=`cat $PIDFILE` running_pid $pid $DAEMON || return 1 return 0 } force_stop() { # Forcefully kill the process [ ! -f "$PIDFILE" ] && return if running ; then kill -15 $pid # Is it really dead? [ -n "$DODTIME" ] && sleep "$DODTIME"s if running ; then kill -9 $pid [ -n "$DODTIME" ] && sleep "$DODTIME"s if running ; then echo "Cannot kill $LABEL (pid=$pid)!" exit 1 fi fi fi rm -f $PIDFILE return 0 } case "$1" in start) echo -n "Starting $DESC: " start-stop-daemon --start --quiet --pidfile $PIDFILE --startas $DAEMON -- $DAEMON_OPTS test -f $PIDFILE || sleep 1 if running ; then echo "$NAME." else echo " ERROR." fi ;; stop) echo -n "Stopping $DESC: " start-stop-daemon --stop --quiet --oknodo --pidfile $PIDFILE echo "$NAME." ;; force-stop) echo -n "Forcefully stopping $DESC: " force_stop if ! running ; then echo "$NAME." else echo " ERROR." fi ;; #reload) # # If the daemon can reload its config files on the fly # for example by sending it SIGHUP, do it here. # # If the daemon responds to changes in its config file # directly anyway, make this a do-nothing entry. # # echo "Reloading $DESC configuration files." # start-stop-daemon --stop --signal 1 --quiet --pidfile # /var/run/$NAME.pid --exec $DAEMON #;; force-reload) # # If the "reload" option is implemented, move the "force-reload" # option to the "reload" entry above. If not, "force-reload" is # just the same as "restart" except that it does nothing if the # daemon isn't already running. # check wether $DAEMON is running. If so, restart start-stop-daemon --stop --test --quiet --pidfile $PIDFILE --startas $DAEMON && $0 restart || exit 0 ;; restart) echo -n "Restarting $DESC: " start-stop-daemon --stop --quiet --oknodo --pidfile $PIDFILE [ -n "$DODTIME" ] && sleep $DODTIME start-stop-daemon --start --quiet --pidfile $PIDFILE --startas $DAEMON -- $DAEMON_OPTS echo "$NAME." ;; status) echo -n "$LABEL is " if running ; then echo "running" else echo " not running." exit 1 fi ;; *) N=/etc/init.d/$NAME # echo "Usage: $N {start|stop|restart|reload|force-reload}" >&2 echo "Usage: $N {start|stop|restart|force-reload|status|force-stop}" >&2 exit 1 ;; esac exit 0
同时 也参见 https://github.com/Supervisor/initscripts
完成后即可在/etc/supervisor/conf.d/ 目录下$vi tornado_demo.conf
[program:tornado_demo] command=python /var/www/tornado_example/munger/main.py --port=8880 autostart=true autorestart=true redirect_stderr=true stdout_logfile = /var/log/munger/munger.log stderr_logfile = /var/log/munger/error.log
关于tornado
实例使用 http://demo.pythoner.com/itt2zh/ch2.html
2.3 复杂示例：The Alpha Munger 例子即可。
其中 重点需要关注的是supervisord的用法。
1. sudo supervisorctl stop tornado_demo
2. sudo supervisorctl start tornado_demo
3. sudo supervisorctl status
4. sudo /etc/init.d/supervisor start/stop/restart/reload
修改*.conf文件后，需要reload
参考链接：
1. http://gracece.com/2014/03/Tornado-supervisor+nginx/
2. http://blog.csdn.net/tengzhaorong/article/details/12833157