docs: def service_name_from_scope_name(scope_name):
      """Translate scope name to service name which can be used in dns.
  
      230 = 253 - len('replica.') - len('.service.consul')
      """
  
      def replace_char(match):
          c = match.group(0)
          return '-' if c in '. _' else "u{:04d}".format(ord(c))
  
      service_name = re.sub(r'[^a-z0-9\-]', replace_char, scope_name.lower())
      return service_name[0:230]