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我花了一整天的时间来解决这个问题，但我还没有得到它。我在 digitaloceon 中创建了一个 droplet，我安装了 rvm 并使用 mina 部署了我的 rails 应用程序。我已经创建了交换区。

所以，我确定我的应用程序路径在 nginx 配置和 routes.rb 中是正确的。但是 Rails 在我的域名和服务器 IP 上也呈现了一个空白页面。

我检查了 unicorn.stder.log 我看到了这些日志：

Instance method "open" is already defined in Object, use generic helper instead or set StateMachine::Machine.ignore_method_conflicts = true. 
I, [2015-04-21T14:35:55.148457 #18765]  INFO -- : listening on addr=/tmp/unicorn.sock fd=12
I, [2015-04-21T14:35:55.169044 #18765]  INFO -- : master process ready
I, [2015-04-21T14:35:55.186923 #18769]  INFO -- : worker=0 ready
I, [2015-04-21T14:35:55.195608 #18772]  INFO -- : worker=1 ready
E, [2015-04-21T14:35:58.821812 #18769] ERROR -- : app error: (<unknown>): mapping values are not allowed in this context at line 8 column 56 (Psych::SyntaxError)
E, [2015-04-21T14:35:58.821983 #18769] ERROR -- : /usr/local/rvm/rubies/ruby-2.1.3/lib/ruby/2.1.0/psych.rb:370:in `parse'
E, [2015-04-21T14:35:58.822057 #18769] ERROR -- : /usr/local/rvm/rubies/ruby-2.1.3/lib/ruby/2.1.0/psych.rb:370:in `parse_stream'
E, [2015-04-21T14:35:58.822106 #18769] ERROR -- : /usr/local/rvm/rubies/ruby-2.1.3/lib/ruby/2.1.0/psych.rb:318:in `parse'
E, [2015-04-21T14:35:58.822141 #18769] ERROR -- : /usr/local/rvm/rubies/ruby-2.1.3/lib/ruby/2.1.0/psych.rb:245:in `load'
E, [2015-04-21T14:35:58.822174 #18769] ERROR -- : /var/www/myapp/current/vendor/bundle/ruby/2.1.0/gems/railties-4.1.9/lib/rails/application.rb:339:in `secrets'
E, [2015-04-21T14:35:58.822216 #18769] ERROR -- : /var/www/myapp/current/vendor/bundle/ruby/2.1.0/gems/railties-4.1.9/lib/rails/application.rb:477:in `validate_secret_key_config!'
E, [2015-04-21T14:35:58.822251 #18769] ERROR -- : /var/www/myapp/current/vendor/bundle/ruby/2.1.0/gems/railties-4.1.9/lib/rails/application.rb:195:in `env_config'
E, [2015-04-21T14:35:58.822301 #18769] ERROR -- : /var/www/myapp/current/vendor/bundle/ruby/2.1.0/gems/railties-4.1.9/lib/rails/engine.rb:510:in `call'

所以这里是我的 nginx站点-available/myapp.com

upstream app {
    # Path to Unicorn SOCK file, as defined previously
    server unix:/tmp/unicorn.sock fail_timeout=0;
}

server {


    listen 80;
    server_name .mydomain.com;

    # Application root, as defined previously
    root /var/www/myapp/current/public;

    try_files $uri/index.html $uri @app;

    location @app {
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_redirect off;
        proxy_pass http://app;
    }

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

谁能告诉我，怎么了？请！

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1 回答 1

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看看这个修改后的 nginx 配置是否有效

upstream app {
  # Path to Unicorn SOCK file, as defined previously
  server unix:/tmp/unicorn.sock fail_timeout=0;
}

server {


  listen 80;
  server_name mercandiamond.com www.mercandiamond.com;

  # Application root, as defined previously
  root /var/www/myapp/current/public;

  location / {
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
      proxy_set_header Host $http_host;
      proxy_redirect off;
      proxy_pass http://localhost:22/;
  }

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

如果没有，请确保

1) sites-enabled/myapp.com 匹配sites-available/myapp.com

2) 运行 nginx -s reload

希望这可以帮助！

于 2015-04-21T17:52:44.723 回答