# File lib/fog/storage/models/rackspace/directory.rb, line 38
        def public_url
          requires :key
          @public_url ||= begin
            begin response = connection.cdn.head_container(key)
              if response.headers['X-CDN-Enabled'] == 'True'
                if connection.rackspace_cdn_ssl == true
                  response.headers['X-CDN-SSL-URI']
                else
                  cdn_cname || response.headers['X-CDN-URI']
                end
              end
            rescue Fog::Service::NotFound
              nil
            end
          end
        end