我正在尝试将异常发送到松弛通道。这是我的设置：
将以下内容添加到我的Gemfile
gem 'exception_notification'
gem 'slack-notifier'
创建了一个新的初始化器config/initializers/errors.rb
# Works in development with or without this require
require 'exception_notification'
Rails.application.config.middleware.use(
ExceptionNotification::Rack,
:slack => {
:webhook_url => ENV["SLACK_ERROR_WEBHOOOK_URL"]
}
)
我已经重建了我的 docker 镜像并删除了 gem 缓存卷。
这在我的开发环境中正常工作（错误被发送到松弛），但在我的生产服务器上不起作用。我能想到的两者之间唯一真正的区别是RAILS_ENV价值，至少在配置方面。但是，我对 Rails 以及部署到生产环境还很陌生。
启动应用程序 ( docker-compose up) 后立即退出并出现以下错误：
/usr/local/bundle/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:34:in `require': cannot load such file -- exception_notification (LoadError)
app_1 | from /usr/local/bundle/gems/zeitwerk-2.3.0/lib/zeitwerk/kernel.rb:23:in `require'
app_1 | from /usr/local/bundle/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:325:in `block in require'
app_1 | from /usr/local/bundle/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:291:in `load_dependency'
app_1 | from /usr/local/bundle/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:325:in `require'
app_1 | from /app/config/initializers/errors.rb:1:in `<main>'
app_1 | from /usr/local/bundle/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:55:in `load'
app_1 | from /usr/local/bundle/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:55:in `load'
app_1 | from /usr/local/bundle/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:319:in `block in load'
app_1 | from /usr/local/bundle/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:291:in `load_dependency'
app_1 | from /usr/local/bundle/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:319:in `load'
app_1 | from /usr/local/bundle/gems/railties-6.0.2.1/lib/rails/engine.rb:667:in `block in load_config_initializer'
app_1 | from /usr/local/bundle/gems/activesupport-6.0.2.1/lib/active_support/notifications.rb:182:in `instrument'
app_1 | from /usr/local/bundle/gems/railties-6.0.2.1/lib/rails/engine.rb:666:in `load_config_initializer'
app_1 | from /usr/local/bundle/gems/railties-6.0.2.1/lib/rails/engine.rb:624:in `block (2 levels) in <class:Engine>'
app_1 | from /usr/local/bundle/gems/railties-6.0.2.1/lib/rails/engine.rb:623:in `each'
app_1 | from /usr/local/bundle/gems/railties-6.0.2.1/lib/rails/engine.rb:623:in `block in <class:Engine>'
app_1 | from /usr/local/bundle/gems/railties-6.0.2.1/lib/rails/initializable.rb:32:in `instance_exec'
app_1 | from /usr/local/bundle/gems/railties-6.0.2.1/lib/rails/initializable.rb:32:in `run'
app_1 | from /usr/local/bundle/gems/railties-6.0.2.1/lib/rails/initializable.rb:61:in `block in run_initializers'
app_1 | from /usr/local/lib/ruby/2.6.0/tsort.rb:228:in `block in tsort_each'
app_1 | from /usr/local/lib/ruby/2.6.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
app_1 | from /usr/local/lib/ruby/2.6.0/tsort.rb:422:in `block (2 levels) in each_strongly_connected_component_from'
app_1 | from /usr/local/lib/ruby/2.6.0/tsort.rb:431:in `each_strongly_connected_component_from'
app_1 | from /usr/local/lib/ruby/2.6.0/tsort.rb:421:in `block in each_strongly_connected_component_from'
app_1 | from /usr/local/bundle/gems/railties-6.0.2.1/lib/rails/initializable.rb:50:in `each'
app_1 | from /usr/local/bundle/gems/railties-6.0.2.1/lib/rails/initializable.rb:50:in `tsort_each_child'
app_1 | from /usr/local/lib/ruby/2.6.0/tsort.rb:415:in `call'
app_1 | from /usr/local/lib/ruby/2.6.0/tsort.rb:415:in `each_strongly_connected_component_from'
app_1 | from /usr/local/lib/ruby/2.6.0/tsort.rb:349:in `block in each_strongly_connected_component'
app_1 | from /usr/local/lib/ruby/2.6.0/tsort.rb:347:in `each'
app_1 | from /usr/local/lib/ruby/2.6.0/tsort.rb:347:in `call'
app_1 | from /usr/local/lib/ruby/2.6.0/tsort.rb:347:in `each_strongly_connected_component'
app_1 | from /usr/local/lib/ruby/2.6.0/tsort.rb:226:in `tsort_each'
app_1 | from /usr/local/lib/ruby/2.6.0/tsort.rb:205:in `tsort_each'
app_1 | from /usr/local/bundle/gems/railties-6.0.2.1/lib/rails/initializable.rb:60:in `run_initializers'
app_1 | from /usr/local/bundle/gems/railties-6.0.2.1/lib/rails/application.rb:363:in `initialize!'
app_1 | from /app/config/environment.rb:5:in `<main>'
app_1 | from /usr/local/bundle/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
app_1 | from /usr/local/bundle/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
app_1 | from /usr/local/bundle/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
app_1 | from /usr/local/bundle/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
app_1 | from /usr/local/bundle/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
app_1 | from /usr/local/bundle/gems/zeitwerk-2.3.0/lib/zeitwerk/kernel.rb:23:in `require'
app_1 | from /usr/local/bundle/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:325:in `block in require'
app_1 | from /usr/local/bundle/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:291:in `load_dependency'
app_1 | from /usr/local/bundle/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:325:in `require'
app_1 | from /usr/local/bundle/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:49:in `require_relative'
app_1 | from config.ru:3:in `block in <main>'
app_1 | from /usr/local/bundle/gems/rack-2.2.2/lib/rack/builder.rb:116:in `eval'
app_1 | from /usr/local/bundle/gems/rack-2.2.2/lib/rack/builder.rb:116:in `new_from_string'
app_1 | from /usr/local/bundle/gems/rack-2.2.2/lib/rack/builder.rb:105:in `load_file'
app_1 | from /usr/local/bundle/gems/rack-2.2.2/lib/rack/builder.rb:66:in `parse_file'
app_1 | from /usr/local/bundle/gems/rack-2.2.2/lib/rack/server.rb:349:in `build_app_and_options_from_config'
app_1 | from /usr/local/bundle/gems/rack-2.2.2/lib/rack/server.rb:249:in `app'
app_1 | from /usr/local/bundle/gems/rack-2.2.2/lib/rack/server.rb:422:in `wrapped_app'
app_1 | from /usr/local/bundle/gems/rack-2.2.2/lib/rack/server.rb:312:in `block in start'
app_1 | from /usr/local/bundle/gems/rack-2.2.2/lib/rack/server.rb:379:in `handle_profiling'
app_1 | from /usr/local/bundle/gems/rack-2.2.2/lib/rack/server.rb:311:in `start'
app_1 | from /usr/local/bundle/gems/railties-6.0.2.1/lib/rails/commands/server/server_command.rb:39:in `start'
app_1 | from /usr/local/bundle/gems/railties-6.0.2.1/lib/rails/commands/server/server_command.rb:147:in `block in perform'
app_1 | from /usr/local/bundle/gems/railties-6.0.2.1/lib/rails/commands/server/server_command.rb:138:in `tap'
app_1 | from /usr/local/bundle/gems/railties-6.0.2.1/lib/rails/commands/server/server_command.rb:138:in `perform'
app_1 | from /usr/local/bundle/gems/thor-1.0.1/lib/thor/command.rb:27:in `run'
app_1 | from /usr/local/bundle/gems/thor-1.0.1/lib/thor/invocation.rb:127:in `invoke_command'
app_1 | from /usr/local/bundle/gems/thor-1.0.1/lib/thor.rb:392:in `dispatch'
app_1 | from /usr/local/bundle/gems/railties-6.0.2.1/lib/rails/command/base.rb:69:in `perform'
app_1 | from /usr/local/bundle/gems/railties-6.0.2.1/lib/rails/command.rb:46:in `invoke'
app_1 | from /usr/local/bundle/gems/railties-6.0.2.1/lib/rails/commands.rb:18:in `<main>'
app_1 | from /usr/local/bundle/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
app_1 | from /usr/local/bundle/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
app_1 | from /usr/local/bundle/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
app_1 | from /usr/local/bundle/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
app_1 | from /usr/local/bundle/gems/bootsnap-1.4.6/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
app_1 | from /usr/local/bundle/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:325:in `block in require'
app_1 | from /usr/local/bundle/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:291:in `load_dependency'
app_1 | from /usr/local/bundle/gems/activesupport-6.0.2.1/lib/active_support/dependencies.rb:325:in `require'
app_1 | from bin/rails:4:in `<main>'
我已经验证了 gemexception_notification确实是通过运行安装的docker exec -it <container-name> gem list，它包含exception_notification (4.4.3)在输出中，并且运行docker exec -it <container-name> gem which exception_notification它给出了/usr/local/bundle/gems/exception_notification-4.4.3/lib/exception_notification.rb
运行 Ruby on Rails v6.0.2 和 Ruby v2.6.3