KeyFile:  keyFile.Name(),
			},
		},
	}

	config, err := c.configCertAndKey(nil)
	if err != nil {
		t.Errorf(
			"failed configCertAndKey:\n\texpected: has no error\n\tactual:%v",
			err,
		)
	}
	if config.Certificates == nil {
		t.Errorf(
			"failed configCertAndKey:\n\texpected: Certificates not equal to nil\n\tactual:%v",
			config.Certificates,
		)
	}
}

		if config == nil {
			config = &tls.Config{}
		}
		config.RootCAs = CACertPool
	}
	return config, nil
}

// configCertAndKey configures and returns a reference to tls.Config instance if CertFile and KeyFile pair is provided
func (evc ExternalEtcdVersionCheck) configCertAndKey(config *tls.Config) (*tls.Config, error) {
	var cert tls.Certificate
	if evc.Etcd.External.CertFile != "" && evc.Etcd.External.KeyFile != "" {