Merge pull request #56975 from davidxia/examples

Automatic merge from submit-queue (batch tested with PRs 56997, 57008, 56984, 56975, 56955). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.

examples: Make messages more informative

by including pod name and namespace



**What this PR does / why we need it**:
Makes messages sent to stdout more informative.
This helps new users running the examples.

**Release note**:

```release-note
NONE
```

staging/src/k8s.io/client-go/examples/out-of-cluster-client-configuration/main.go

@@ -62,15 +62,18 @@ func main() {
 		// Examples for error handling:
 		// - Use helper functions like e.g. errors.IsNotFound()
 		// - And/or cast to StatusError and use its properties like e.g. ErrStatus.Message
-		_, err = clientset.CoreV1().Pods("default").Get("example-xxxxx", metav1.GetOptions{})
+		namespace := "default"
+		pod := "example-xxxxx"
+		_, err = clientset.CoreV1().Pods(namespace).Get(pod, metav1.GetOptions{})
 		if errors.IsNotFound(err) {
-			fmt.Printf("Pod not found\n")
+			fmt.Printf("Pod %s in namespace %s not found\n", pod, namespace)
 		} else if statusError, isStatus := err.(*errors.StatusError); isStatus {
-			fmt.Printf("Error getting pod %v\n", statusError.ErrStatus.Message)
+			fmt.Printf("Error getting pod %s in namespace %s: %v\n",
+				pod, namespace, statusError.ErrStatus.Message)
 		} else if err != nil {
 			panic(err.Error())
 		} else {
-			fmt.Printf("Found pod\n")
+			fmt.Printf("Found pod %s in namespace %s\n", pod, namespace)
 		}
 
 		time.Sleep(10 * time.Second)