nginx.conf

user www-data;
worker_processes  5;
pid /run/nginx.pid;

events {
    worker_connections 2048;
#    use epoll;
}


http {

    upstream frontends {
        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 127.0.0.1:8004;
	server 127.0.0.1:8005;
	server 127.0.0.1:8006;
	server 127.0.0.1:8007;	
    }
    server_names_hash_bucket_size 64;
    include       mime.types;
    default_type  application/octet-stream;
    log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
                      '$status $body_bytes_sent "$http_referer" '
                      '"$http_user_agent" "$http_x_forwarded_for"';
    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;
    sendfile       on;
    tcp_nopush     on;
    tcp_nodelay    on;

    keepalive_timeout  65;
    types_hash_max_size 2048;

    ##
    # Gzip Settings
    ##

    gzip on;
    gzip_disable "msie6";

    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_buffers 16 8k;
    gzip_http_version 1.1;
    gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss 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;

    #---http config ---
    server {
        listen       80;
        client_max_body_size 100M;
#        location  /static/adminlte/ {
#            root /var/www/weixin-robot/app/;
#            expires max;
#        }
	location /static/{
	    root /var/www/weixin-robot/app/;
	    expires max;
	}
        location = /favicon.ico {
            rewrite (.*) /static/favicon.ico;
        }
        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;
        }

    }
}