nginx 配置文件：

upstream app_hyperion {
  server  unix:/tmp/unicorn.hyperion.sock;
}
server {
    listen   9001;
    server_name localhost;
    root       /home/ubuntu/deploy/rhea/public;
    index      index.html;

    location / {
        proxy_set_header  X-Real-IP  $remote_addr;
        proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header  Host $http_host;
        proxy_redirect    off;
        try_files /system/maintenance.html $uri $uri/index.html $uri.html @ruby;
    }

    location @ruby {
        proxy_pass http://app_hyperion ;
    }
}
server {
    listen   9002;
    server_name localhost;
    root       /home/ubuntu/deploy/hyperion/public;
    index      index.html;

    location / {
        proxy_set_header  X-Real-IP  $remote_addr;
        proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header  Host $http_host;
        proxy_redirect    off;
        try_files /system/maintenance.html $uri $uri/index.html $uri.html @ruby;
    }

    location @ruby {
        proxy_pass http://app_hyperion ;
    }
}