Current_hostname: 未初始化的常量

安装
1

你好！我们的设置有点复杂，因为我们需要使用 k8s 来托管我们的论坛，但我会尽量保持简单。

在使用 此应用程序 yml 时，我们在启动过程中遇到以下错误。这是从昨晚开始出现的新问题——在此之前我们都能正常运行，但重新部署后突然就坏了。

不用在意那个 yml 中对电子邮件环境变量的修改，我们当时在调试别的东西。

=> Booting Puma
=> Rails 7.0.2.4 application starting in production 
=> Run `bin/rails server --help` for more startup options
Exiting
/var/www/discourse/lib/discourse.rb:443:in `current_hostname': uninitialized constant Discourse::SiteSetting (NameError)
Did you mean?  Discourse::SiteSettingMissing
        from /var/www/discourse/config/initializers/100-verify_config.rb:7:in `<main>'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:39:in `load'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:39:in `load'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.4/lib/rails/engine.rb:667:in `block in load_config_initializer'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activesupport-7.0.2.4/lib/active_support/notifications.rb:208:in `instrument'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.4/lib/rails/engine.rb:666:in `load_config_initializer'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.4/lib/rails/engine.rb:620:in `block (2 levels) in <class:Engine>'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.4/lib/rails/engine.rb:619:in `each'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.4/lib/rails/engine.rb:619:in `block in <class:Engine>'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.4/lib/rails/initializable.rb:32:in `instance_exec'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.4/lib/rails/initializable.rb:32:in `run'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.4/lib/rails/initializable.rb:61:in `block in run_initializers'
        from /usr/local/lib/ruby/2.7.0/tsort.rb:228:in `block in tsort_each'
        from /usr/local/lib/ruby/2.7.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
        from /usr/local/lib/ruby/2.7.0/tsort.rb:422:in `block (2 levels) in each_strongly_connected_component_from'
        from /usr/local/lib/ruby/2.7.0/tsort.rb:431:in `each_strongly_connected_component_from'
        from /usr/local/lib/ruby/2.7.0/tsort.rb:415:in `block in each_strongly_connected_component_from'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.4/lib/rails/initializable.rb:50:in `each'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.4/lib/rails/initializable.rb:50:in `tsort_each_child'
        from /usr/local/lib/ruby/2.7.0/tsort.rb:415:in `call'
        from /usr/local/lib/ruby/2.7.0/tsort.rb:415:in `each_strongly_connected_component_from'
        from /usr/local/lib/ruby/2.7.0/tsort.rb:349:in `block in each_strongly_connected_component'
        from /usr/local/lib/ruby/2.7.0/tsort.rb:347:in `each'
        from /usr/local/lib/ruby/2.7.0/tsort.rb:347:in `call'
        from /usr/local/lib/ruby/2.7.0/tsort.rb:347:in `each_strongly_connected_component'
        from /usr/local/lib/ruby/2.7.0/tsort.rb:226:in `tsort_each'
        from /usr/local/lib/ruby/2.7.0/tsort.rb:205:in `tsort_each'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.4/lib/rails/initializable.rb:60:in `run_initializers'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.4/lib/rails/application.rb:372:in `initialize!'
        from /var/www/discourse/config/environment.rb:7:in `<main>'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/zeitwerk-2.5.4/lib/zeitwerk/kernel.rb:35:in `require'
        from config.ru:6:in `block in <main>'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/rack-2.2.3/lib/rack/builder.rb:116:in `eval'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/rack-2.2.3/lib/rack/builder.rb:116:in `new_from_string'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/rack-2.2.3/lib/rack/builder.rb:105:in `load_file'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/rack-2.2.3/lib/rack/builder.rb:66:in `parse_file'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/rack-2.2.3/lib/rack/server.rb:349:in `build_app_and_options_from_config'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/rack-2.2.3/lib/rack/server.rb:249:in `app'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/rack-2.2.3/lib/rack/server.rb:422:in `wrapped_app'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/rack-2.2.3/lib/rack/server.rb:312:in `block in start'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/rack-2.2.3/lib/rack/server.rb:379:in `handle_profiling'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/rack-2.2.3/lib/rack/server.rb:311:in `start'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.4/lib/rails/commands/server/server_command.rb:38:in `start'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.4/lib/rails/commands/server/server_command.rb:143:in `block in perform'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.4/lib/rails/commands/server/server_command.rb:134:in `tap'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.4/lib/rails/commands/server/server_command.rb:134:in `perform'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/thor-1.2.1/lib/thor/command.rb:27:in `run'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/thor-1.2.1/lib/thor/invocation.rb:127:in `invoke_command'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/thor-1.2.1/lib/thor.rb:392:in `dispatch'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.4/lib/rails/command/base.rb:87:in `perform'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.4/lib/rails/command.rb:48:in `invoke'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/railties-7.0.2.4/lib/rails/commands.rb:18:in `<main>'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
        from /var/www/discourse/vendor/bundle/ruby/2.7.0/gems/bootsnap-1.11.1/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:30:in `require'
        from bin/rails:18:in `<main>'

我们快速查看了源代码（尽管我们大多数人都不熟悉 Ruby），但我们仍然很困惑。有什么想法吗？

2

使用启动器构建映像，并使用使其正常工作所需的环境变量启动它。您可以通过一个仅显示启动调用的启动器命令来获取它们（查看启动器代码以获取它）。

您可以将其针对实时数据库进行构建，然后启动它，或者将其针对临时数据库进行构建，然后在启动后迁移和预编译资产。

所有这些都超出了此处提供的支持范围。

或者，您可以使用 bitnami（此处也不支持）。

3

感谢您的回复，我非常感激，尤其考虑到 k8s 在这里有点超出范围。

我们不能直接使用 Bitnami，因为我们需要向实例添加插件，但总体而言，这似乎是一个有用的建议。

我们正在仔细检查所有内容，感谢您提供的启动器提示——希望我们能发现一些问题。

1 个赞
4

这确实似乎是缺少环境变量的问题——不是在构建文件中，而是在 k8s 端。感谢您的帮助。

2 个赞
5

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