Merge pull request kubernetes#127881 from omerap12/drain-package-PollUntilContextTimeout

Update waitForDelete to use PollUntilContextTimeout

Author: k8s-ci-robot

staging/src/k8s.io/kubectl/pkg/drain/drain.go

@@ -413,7 +413,10 @@ func (d *Helper) deletePods(pods []corev1.Pod, getPodFn func(namespace, name str
 
 func waitForDelete(params waitForDeleteParams) ([]corev1.Pod, error) {
 	pods := params.pods
-	err := wait.PollImmediate(params.interval, params.timeout, func() (bool, error) {
+	if params.ctx == nil {
+		params.ctx = context.Background()
+	}
+	err := wait.PollUntilContextTimeout(params.ctx, params.interval, params.timeout, true, func(ctx context.Context) (done bool, err error) {
 		pendingPods := []corev1.Pod{}
 		for i, pod := range pods {
 			p, err := params.getPodFn(pod.Namespace, pod.Name)
@@ -440,15 +443,7 @@ func waitForDelete(params waitForDeleteParams) ([]corev1.Pod, error) {
 			}
 		}
 		pods = pendingPods
-		if len(pendingPods) > 0 {
-			select {
-			case <-params.ctx.Done():
-				return false, fmt.Errorf("global timeout reached: %v", params.globalTimeout)
-			default:
-				return false, nil
-			}
-		}
-		return true, nil
+		return len(pods) == 0, nil
 	})
 	return pods, err
 }

staging/src/k8s.io/kubectl/pkg/drain/drain_test.go

@@ -36,7 +36,6 @@ import (
 	"k8s.io/apimachinery/pkg/runtime"
 	"k8s.io/apimachinery/pkg/runtime/schema"
 	"k8s.io/apimachinery/pkg/types"
-	"k8s.io/apimachinery/pkg/util/wait"
 	"k8s.io/client-go/kubernetes/fake"
 	ktest "k8s.io/client-go/testing"
 )
@@ -101,7 +100,7 @@ func TestDeletePods(t *testing.T) {
 			timeout:           3 * time.Second,
 			expectPendingPods: true,
 			expectError:       true,
-			expectedError:     &wait.ErrWaitTimeout,
+			expectedError:     &context.DeadlineExceeded,
 			getPodFn: func(namespace, name string) (*corev1.Pod, error) {
 				oldPodMap, _ := createPods(false)
 				if oldPod, found := oldPodMap[name]; found {
@@ -117,7 +116,7 @@ func TestDeletePods(t *testing.T) {
 			ctxTimeoutEarly:   true,
 			expectPendingPods: true,
 			expectError:       true,
-			expectedError:     &wait.ErrWaitTimeout,
+			expectedError:     &context.Canceled,
 			getPodFn: func(namespace, name string) (*corev1.Pod, error) {
 				oldPodMap, _ := createPods(false)
 				if oldPod, found := oldPodMap[name]; found {