code: func (s *HTTPServer) ConnectCAConfigurationGet(resp http.ResponseWriter, req *http.Request) (interface{}, error) {
  	// Method is tested in ConnectCAConfiguration
  	var args structs.DCSpecificRequest
  	if done := s.parse(resp, req, &args.Datacenter, &args.QueryOptions); done {
  		return nil, nil
  	}
  
  	var reply structs.CAConfiguration
  	err := s.agent.RPC("ConnectCA.ConfigurationGet", &args, &reply)
  	if err != nil {
  		return nil, err
  	}
  
  	fixupConfig(&reply)
  	return reply, nil
  }
docs: // GEt /v1/connect/ca/configuration