ruby-on-rails – 为什么nginx找不到我的资产？

我有一些资产,一个名为sidekiq的ruby宝石使用.但是,当我提出要求时,这些资产没有得到妥善处理.我的nginx配置看起来像这样：

upstream unicorn {
  server unix:/tmp/unicorn.myapp.sock fail_timeout=0;
}

server {
  listen 80 default deferred;
  # server_name example.com;
  root /home/deployer/apps/myapp/current/public;

  if (-f $document_root/system/maintenance.html) {
    return 503;my
  }
  error_page 503 @maintenance;
  location @maintenance {
    rewrite  ^(.*)$ /system/maintenance.html last;
    break;
  }

  location ~ ^/assets/ {
    gzip_static on;
    expires max;
    add_header Cache-Control public;
  }

  try_files $uri/index.html $uri @unicorn;
  location @unicorn {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_redirect off;
    proxy_pass http://unicorn;
  }

  error_page 500 502 503 504 /500.html;
  client_max_body_size 4G;
  keepalive_timeout 10;

  if (-f $document_root/system/maintenance.html) {
    return 503;
  }
  error_page 503 @maintenance;
  location @maintenance {
    rewrite  ^(.*)$ /system/maintenance.html last;
    break;
  }
}

从我的浏览器中我可以看到它是例如请求http://www.myapp.com/admin/sidekiq/stylesheets/application.css.

如果我ssh到服务器并写：

ls /home/deployer/apps/myapp/current/public/admin/sidekiq/stylesheets
application.css  bootstrap.css

你可以看到它确实在那里.那么为什么不服务呢？