for (int i = 0; i < 10; i++) {
            try {
                setupGcsClient(bucketName, endpoint);
                break;
            } catch (final Exception e) {
                logger.warn("[{}] {}", i + 1, e.getMessage());
            }
            ThreadUtil.sleep(1000L);
        }
    }

    private void setupGcsClient(String bucketName, String endpoint) throws Exception {