CarrierWave.configure do |config|
  config.fog_provider = 'fog/aws'
  config.fog_credentials = {
    provider:              'AWS',
    aws_access_key_id:     '...',
    aws_secret_access_key: '...',
  }
 config.fog_directory  = Rails.env
 config.fog_public = false
end

class Item < ActiveRecord::Base
  mount_uploader :image, ImageUploader
end