e2e framework/pod: add Get helper

This helper will be used by several different tests and makes those tests more
readable.

test/e2e/framework/pod/get.go

@@ -0,0 +1,31 @@
+/*
+Copyright 2023 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package pod
+
+import (
+	v1 "k8s.io/api/core/v1"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	clientset "k8s.io/client-go/kubernetes"
+	"k8s.io/kubernetes/test/e2e/framework"
+)
+
+// Get creates a function which retrieves the pod anew each time the function
+// is called. Fatal errors are detected by framework.HandleRetry and cause
+// polling to stop.
+func Get(c clientset.Interface, pod framework.NamedObject) framework.GetFunc[*v1.Pod] {
+	return framework.HandleRetry(framework.GetObject(c.CoreV1().Pods(pod.GetNamespace()).Get, pod.GetName(), metav1.GetOptions{}))
+}