Rails.application.database_configuration错误与Rails 5.1 + Nginx + Phusion_Passenger

我有一个服务器与Rails 5.1，Phusion_Passenger和Nginx。Rails.application.database_configuration错误与Rails 5.1 + Nginx + Phusion_Passenger

当我启动服务器只有Phusion_Passenger，一切都很好：

=============== Phusion Passenger Standalone web server started =============== 
PID file: /project/tmp/pids/passenger.3000.pid 
Log file: /project/log/passenger.3000.log 
Environment: development 
Accessible via: http://0.0.0.0:3000/ 

You can stop Phusion Passenger Standalone by pressing Ctrl-C. 
Problems? Check https://www.phusionpassenger.com/library/admin/standalone/troubleshooting/ 
=============================================================================== 
[ N 2017-09-26 15:13:06.4195 8753/T5 age/Cor/SecurityUpdateChecker.h:374 ]: Security update check: no update found (next check in 24 hours)

当我尝试启动，并与Nginx的访问同一个实例的覆盖，我收到以下错误：

App 8129 stdout: 
App 8129 stdout: 
[ E 2017-09-26 15:06:26.4848 1774/T1l age/Cor/App/Implementation.cpp:304 ]: Could not spawn process for application /project: An error occurred while starting up the preloader. 
    Error ID: e18b79ab 
    Error details saved to: /tmp/passenger-error-YkowRo.html 
    Message from application: Cannot load `Rails.application.database_configuration`: 
undefined method `[]' for nil:NilClass (NoMethodError) 
    (erb):13:in `<main>'

看来，当你用Nginx加载rails应用程序时，它不能访问“Rails”对象。

来源

2017-09-26 user1789782

您是否使用环境变量传递数据库详细信息？如果是，那么你是否在你的nginx配置中指定了那些？ –

没有东西被细化为环境变量。股票标准config/database.yml文件。 – user1789782

乘客在passenger.conf中没有设置默认环境。增加了这个变量，它解决了这个问题。

passenger_app_env development;

来源

2017-09-26 21:47:48 user1789782

注意这显然只对开发是正确的。在生产中，你应该使用'production' env，它是nginx集成的默认值。 –

Rails.application.database_configuration错误与Rails 5.1 + Nginx + Phusion_Passenger

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