005手动创建一个一定会发生故障推出的pod并跟踪这个pod

```shell
root@k8s-192-168-0-17:~# kubectl run  busybox --image=busybox --dry-run=client -o yaml > testHealthz.yaml
root@k8s-192-168-0-17:~# vim testHealthz.yaml

apiVersion: v1
kind: Pod
metadata:
creationTimestamp: null
labels:
    run: busybox
name: busybox
spec:
containers:
- image: busybox
    name: busybox
    resources: {}
    # 添加启动参数模拟启动后10s就以返回码1退出
    args:
    - /bin/sh
    - -c
    - sleep 10; exit 1
dnsPolicy: ClusterFirst
# 将默认的Always 改成 OnFailure
restartPolicy: OnFailure
status: {}

root@k8s-192-168-0-17:~# kubectl apply -f testHealthz.yaml
pod/busybox created

root@k8s-192-168-0-17:~# kubectl  get pod -o wide -w
NAME                     READY   STATUS    RESTARTS   AGE   IP              NODE               NOMINATED NODE   READINESS GATES
busybox                  1/1     Running   0          22s   172.20.177.32   k8s-192-168-0-19   <none>           <none>
nginx-796bdc6f77-7r5ts   1/1     Running   0          10m   172.20.177.31   k8s-192-168-0-19   <none>           <none>
busybox                  0/1     Error     0          32s   172.20.177.32   k8s-192-168-0-19   <none>           <none>
busybox                  1/1     Running   1 (8s ago)   38s   172.20.177.32   k8s-192-168-0-19   <none>           <none>
busybox                  0/1     Error     1 (19s ago)   49s   172.20.177.32   k8s-192-168-0-19   <none>           <none>
busybox                  0/1     CrashLoopBackOff   1 (14s ago)   61s   172.20.177.32   k8s-192-168-0-19   <none>           <none>
busybox                  1/1     Running            2 (19s ago)   66s   172.20.177.32   k8s-192-168-0-19   <none>           <none>
busybox                  0/1     Error              2 (30s ago)   77s   172.20.177.32   k8s-192-168-0-19   <none>           <none>
busybox                  0/1     CrashLoopBackOff   2 (13s ago)   89s   172.20.177.32   k8s-192-168-0-19   <none>           <none>
busybox                  1/1     Running            3 (34s ago)   110s   172.20.177.32   k8s-192-168-0-19   <none>           <none>
busybox                  0/1     Error              3 (44s ago)   2m     172.20.177.32   k8s-192-168-0-19   <none>           <none>
busybox                  0/1     CrashLoopBackOff   3 (16s ago)   2m14s   172.20.177.32   k8s-192-168-0-19   <none>           <none>
busybox                  1/1     Running            4 (48s ago)   2m46s   172.20.177.32   k8s-192-168-0-19   <none>           <none>
busybox                  0/1     Error              4 (58s ago)   2m56s   172.20.177.32   k8s-192-168-0-19   <none>           <none>
busybox                  0/1     CrashLoopBackOff   4 (15s ago)   3m10s   172.20.177.32   k8s-192-168-0-19   <none>           <none>

# 一直再running error CrashLoopBackOff 并且kubelet会以指数级的退避延迟（10s，20s，40s等）重新启动它们，上限为5分钟
```