Thin server: ouput rails application logs to console, as 'rails s' does

问题

I need to run thin start or thin -ssl ... start within the root of my rails app, and see the application logs output to the console, similar to what rails s does

回答1:

In config.ru file, located at the root of your application, add the following code, just before the line run Rails.application:

console = ActiveSupport::Logger.new($stdout)
console.formatter = Rails.logger.formatter
console.level = Rails.logger.level

Rails.logger.extend(ActiveSupport::Logger.broadcast(console))

来源：https://stackoverflow.com/questions/22158675/thin-server-ouput-rails-application-logs-to-console-as-rails-s-does