生产不工作（Rails 5，乘客，Nginx）

Question

我将我的应用程序部署到服务器。 ( Rails 5 , 乘客 , Nginx ) 我的应用程序正在开发模式下工作。但是我将模式更改为生产模式，但出现此错误（/var/log/nginx/error.log）：

[ E 2017-11-10 20:11:03.9343 21613/Tb age/Cor/App/Implementation.cpp:304 ]: Could not spawn process for application /home/rails/myapp: An error occurred while starting up predloader
  Error ID: ca909334
  Error details saved to: /tmp/passenger-error-iGQLnf.html
  Message from application: cannot load such file -- /home/rails/myapp/config/environment (LoadError)
  config.ru:3:in `require_relative'
  config.ru:3:in `block in <main>'
  /usr/local/lib/ruby/gems/2.3.0/gems/rack-2.0.3/lib/rack/builder.rb:55:in `instance_eval'
  /usr/local/lib/ruby/gems/2.3.0/gems/rack-2.0.3/lib/rack/builder.rb:55:in `initialize'
  config.ru:1:in `new'
  config.ru:1:in `<main>'
  /usr/share/passenger/helper-scripts/rack-preloader.rb:110:in `eval'
  /usr/share/passenger/helper-scripts/rack-preloader.rb:110:in `preload_app'
  /usr/share/passenger/helper-scripts/rack-preloader.rb:156:in `<module:App>'
  /usr/share/passenger/helper-scripts/rack-preloader.rb:30:in `<module:PhusionPassenger>'
  /usr/share/passenger/helper-scripts/rack-preloader.rb:29:in `<main>'

发生这个错误后，我将模式切换为开发模式。我又犯了同样的错误！

我的 nginx 文件：

server {
   listen 80;
   server_name myapp.com www.myapp.com;
   access_log off;
   return 301 https://www.myapp.com$request_uri;
}

server {

  listen 443 ssl;

  ssl on;
  ssl_certificate /etc/nginx/ssl/myapp.com/ssl-bundle.crt;
  ssl_certificate_key /etc/nginx/ssl/myapp.key;

  server_name myapp.com www.myapp.com;
  passenger_enabled on;
  rails_env production;
  root /home/rails/myapp/public;
  index index.html index.htm;

}

需要帮助解决这个问题！

Answer 1

所以，原来问题是由于用户的文件权限不正确造成的。

Nginx 运行作为无权读取应用程序目录文件的 www-data 用户。这就是应用服务器启动失败的原因。

sudo chown -R www-data:www-data /home/rails/myapp

使用上面的命令后passenger就可以读取app-directory的文件，并成功启动

生产不工作（Rails 5，乘客，Nginx）

Production does'nt work ( Rails 5 , Passenger , Nginx )

ruby-on-rails

passenger

nginx

ruby-on-rails-4

ruby-on-rails-5