fix(kaniko): delete kaniko pod on graceful shutdown (#9270)

* fix(kaniko): delete kaniko pod on graceful shutdown

* added comment to explain why we need to create a new context

Author: idsulik

pkg/skaffold/build/cluster/kaniko.go

@@ -77,10 +77,17 @@ func (b *Builder) buildWithKaniko(ctx context.Context, out io.Writer, workspace
 	}
 
 	pod, err := pods.Create(ctx, podSpec, metav1.CreateOptions{})
+
 	if err != nil {
 		return "", fmt.Errorf("creating kaniko pod: %w", err)
 	}
+
 	defer func() {
+		// if build interrupted the original context is cancelled
+		// and pod deletion will not be called, so we need a new ctx
+		ctx, cancel := context.WithTimeout(context.Background(), 3*time.Second)
+		defer cancel()
+
 		if err := pods.Delete(ctx, pod.Name, metav1.DeleteOptions{
 			GracePeriodSeconds: new(int64),
 		}); err != nil {