Rails app configuration

example.rb

# config/application.rb

module Foo
  class Railtie < Rails::Railtie
    config.foo = ActiveSupport::OrderedOptions.new
  end

  def self.config
    Railtie.config.foo
  end

  class Application < Rails::Application
    # Rails configuration
    # e.g. config.time_zone = 'Central Time (US & Canada)'
  end
end


# config/initializers/bar.rb

Foo.config.bar = 'wem'


# some other file in the application

p Foo.config.bar # => 'wem'