prow/kube/client.go
func (c *Client) requestRetryStream(r *request) (io.ReadCloser, error) {
	if c.fake && r.deckPath == "" {
		return nil, nil
	}
	resp, err := c.retry(r)
	if err != nil {
		return nil, err
	}
	if resp.StatusCode == 409 {
		return nil, NewConflictError(fmt.Errorf("body cannot be streamed"))
	} else if resp.StatusCode < 200 || resp.StatusCode > 299 {
		return nil, fmt.Errorf("response has status \"%s\"", resp.Status)
	}
	return resp.Body, nil
}
func (c *Client) requestRetryStream(r *request) (io.ReadCloser, error) {
	if c.fake && r.deckPath == "" {
		return nil, nil
	}
	resp, err := c.retry(r)
	if err != nil {
		return nil, err
	}
	if resp.StatusCode == 409 {
		return nil, NewConflictError(fmt.Errorf("body cannot be streamed"))
	} else if resp.StatusCode < 200 || resp.StatusCode > 299 {
		return nil, fmt.Errorf("response has status \"%s\"", resp.Status)
	}
	return resp.Body, nil
}
// Retry on transport failures. Does not retry on 500s.