server.go

// getExec handles requests to run a command inside a container.
func (s *Server) getExec(request *restful.Request, response *restful.Response) {
  	// ...
	podFullName := kubecontainer.GetPodFullName(pod)
	url, err := s.host.GetExec(podFullName, params.podUID, params.containerName, params.cmd, *streamOpts)
	if err != nil {
		streaming.WriteError(err, response.ResponseWriter)
		return
	}
	// ...
}