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#!/bin/bash

serverName=$(ls|grep 'Server.py')
tornadoPorts='8000 8001 8002 8003'

function start {
    for port in $tornadoPorts
    do
        python $serverName --port=$port;
        echo "Server: $serverName with port $port was Started!";
    done
    exit 1
    
}

function stop {
    TORNADOS=$(ps ax |grep $serverName |grep -v grep| awk -F ' ' '{print $1}')

    for pid in $TORNADOS
    do
        echo "Killing pid: $pid"
        kill -9 $pid;
    done
}

case "$1" in
    start)
        if ( start ); then
            exit 0
        else
            exit 0;
        fi
    ;;

    stop)
        stop
    ;;
    
    restart)
        stop
        if ( start ); then
            exit 0
        else
            exit 0;
        fi
    ;;

    *)
        echo $"Usage: $0 {start|stop|restart}"
        exit 1
esac

#/usr/bin/env python

# Run this with
# Original file: https://github.com/bdarnell/django-tornado-demo/blob/master/testsite/tornado_main.py
# PYTHONPATH=. DJANGO_SETTINGS_MODULE=testsite.settings testsite/tornado_main.py
# Serves by default at
# http://localhost:8080/hello-tornado and
# http://localhost:8080/hello-django

from tornado.options import options, define, parse_command_line
import django.core.handlers.wsgi
import tornado.httpserver
import tornado.ioloop
import tornado.web
import tornado.wsgi
import daemon
import os, sys


SITE_ROOT = os.path.dirname(os.getcwd()) 
PROJECT_NAME = os.path.basename(os.getcwd())

sys.path.append( SITE_ROOT )
os.environ['DJANGO_SETTINGS_MODULE'] = PROJECT_NAME + '.settings'

define('port', type=int, default=8080)

class HelloHandler(tornado.web.RequestHandler):
    def get(self):
        self.write('Hello from tornado')

def main():
    tornado.options.parse_command_line()

    wsgi_app = tornado.wsgi.WSGIContainer(
        django.core.handlers.wsgi.WSGIHandler())

    tornado_app = tornado.web.Application(
        [
            ('/hello-tornado', HelloHandler),
            ('.*', tornado.web.FallbackHandler, dict(fallback=wsgi_app)),
        ])

    server = tornado.httpserver.HTTPServer(tornado_app)
    server.listen(options.port)
    tornado.ioloop.IOLoop.instance().start()

if __name__ == '__main__':
    with daemon.DaemonContext():
        main()

user www-data;
worker_processes  1;

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

events {
    worker_connections  1024;
    # multi_accept on;
    use epoll;
}

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

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

    gzip_disable "MSIE [1-6]\.(?!.*SV1)";

    include /etc/nginx/conf.d/*.conf;
    include /etc/nginx/sites-enabled/*;
}

upstream tornadoFrontends {
    server 127.0.0.1:8000;
    server 127.0.0.1:8001;
    server 127.0.0.1:8002;
    server 127.0.0.1:8003;
}

server {
        listen 80;
        
        server_name  example.com;

        # Allow file uploads
        client_max_body_size 50M;

        location ^~ /static/ {
            root /home/example.com/app_dir;
            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://tornadoFrontends;
        }
    }