refactor

cmd/cloud-controller-manager/app/testing/testserver.go

@@ -17,6 +17,7 @@ limitations under the License.
 package testing
 
 import (
+	"context"
 	"fmt"
 	"io/ioutil"
 	"net"
@@ -133,7 +134,7 @@ func StartTestServer(t Logger, customFlags []string) (result TestServer, err err
 		default:
 		}
 
-		result := client.CoreV1().RESTClient().Get().AbsPath("/healthz").Do()
+		result := client.CoreV1().RESTClient().Get().AbsPath("/healthz").Do(context.TODO())
 		status := 0
 		result.StatusCode(&status)
 		if status == 200 {