main.py

#mehmetkose.org/linode-uzerinde-nginx-supervisord-tornado-yapilandirmasi.html

import tornado.ioloop
from tornado.options import define, options, logging
import tornado.web

define("port", default=8888, help="run on the given port", type=int)

settings = {
    "debug": True,
}

server_settings = {
    "xheaders" : True,
}

class MainHandler(tornado.web.RequestHandler):
    def get(self):
        self.write("Hello, Linode")

def main():
    tornado.options.parse_command_line()
    logging.info("Starting Tornado web server on http://localhost:%s" % options.port)
    application = tornado.web.Application([
        (r"/", MainHandler),
    ], **settings)
    application.listen(options.port, **server_settings)
    tornado.ioloop.IOLoop.instance().start()

if __name__ == "__main__":
    main()

nginx.conf

user nginx;
worker_processes 1;

error_log /var/log/nginx/error.log;
pid /var/run/nginx.pid;

events {
    worker_connections 1024;
    use epoll;
}

http {
    # Enumerate all the Tornado servers here
    upstream frontends {
        server 127.0.0.1:8888;
    }

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    access_log /var/log/nginx/access.log;

    keepalive_timeout 65;
    proxy_read_timeout 200;
    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    gzip on;
    gzip_min_length 1000;
    gzip_proxied any;
    gzip_types text/plain text/html text/css text/xml
               application/x-javascript application/xml
               application/atom+xml text/javascript;

    # Only retry if there was a communication error, not a timeout
    # on the Tornado server (to avoid propagating "queries of death"
    # to all frontends)
    proxy_next_upstream error;

    server {
        listen 80;

        # Allow file uploads
        client_max_body_size 50M;

        location static/ {
            root /srv/www/project/static/;
            if ($query_string) {
                expires max;
            }
        }
        location = /favicon.ico {
            rewrite (.*) /static/favicon.ico;
        }
        location = /robots.txt {
            rewrite (.*) /static/robots.txt;
        }

        location / {
            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;
        }
    }
}

supervisord

#! /bin/bash -e

SUPERVISORD=/usr/local/bin/supervisord
PIDFILE=/tmp/supervisord.pid
OPTS="-c /etc/supervisord.conf"

test -x $SUPERVISORD || exit 0

. /lib/lsb/init-functions

export PATH="${PATH:+$PATH:}/usr/local/bin:/usr/sbin:/sbin"

case "$1" in
  start)
    log_begin_msg "Starting Supervisor daemon manager..."
    start-stop-daemon --start --quiet --pidfile $PIDFILE --exec $SUPERVISORD -- $OPTS || log_end_msg 1
    log_end_msg 0
    ;;
  stop)
    log_begin_msg "Stopping Supervisor daemon manager..."
    start-stop-daemon --stop --quiet --oknodo --pidfile $PIDFILE || log_end_msg 1
    log_end_msg 0
    ;;

  restart|reload|force-reload)
    log_begin_msg "Restarting Supervisor daemon manager..."
    start-stop-daemon --stop --quiet --oknodo --retry 30 --pidfile $PIDFILE
    start-stop-daemon --start --quiet --pidfile /var/run/sshd.pid --exec $SUPERVISORD -- $OPTS || log_end_msg 1
    log_end_msg 0
    ;;

  *)
    log_success_msg "Usage: /etc/init.d/supervisor
{start|stop|reload|force-reload|restart}"
    exit 1
esac

exit 0

supervisord.conf

# -*- conf -*-
[include]
files = *.supervisor

[supervisord]

[supervisorctl]
serverurl = unix://supervisord.sock

[unix_http_server]
file = supervisord.sock

[rpcinterface:supervisor]
supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface

[program:main]
process_name = main-%(process_num)s
command = python /srv/www/project/main.py
	--port=%(process_num)s
	--log_file_prefix=%(here)s/logs/%(program_name)s-%(process_num)s.log
numprocs = 4
numprocs_start = 8888