Carrierwave initializer

carrierwave.rb

CarrierWave.configure do |config|
	if Rails.env.development?
		config.storage = :file
	else
		config.storage							= :s3
		config.s3_access_policy			= :public_read
		config.s3_access_key_id			= 'ACCESS_KEY'
		config.s3_secret_access_key = 'SECRET_ACCESS_KEY'
		config.s3_headers						= 
		{
			'Cache-Control' => 'public; max-age=604800', # 1 week
			'Expires' => 1.week.from_now.httpdate
		}
		
		config.s3_bucket = 'bucket-name'
	end
end