# File lib/fog/aws/requests/dns/change_resource_record_sets.rb, line 190 def self.hosted_zone_for_alias_target(dns_name) k = elb_hosted_zone_mapping.keys.find do |k| dns_name =~ /\A.+\.#{k}\.elb\.amazonaws\.com\.?\z/ end elb_hosted_zone_mapping[k] end