Shutdown hook for Rails

Question

I\'d like to have some cleanup code run when Rails is shutting down - is that possible? My situation is that I have a few threads in the background (I\'m using jruby and ca

Answer 1

Within the context of a Rails Application, the best place to put such a file is in config/initializers. In my app, I needed to Flush the Redis/Sidekiq queue whenever the development or test environments shut down. This works perfectly.

config/initializers/at_exit.rb

at_exit do
  begin
    puts 'Flushing Redis...'
    Redis.new.flushall
  rescue => e
    puts "There was an #{e.to_s} while flushing redis..."
  ensure
    puts 'Done Flushing Redis!'
  end
end unless Rails.env.production?