1.3.1. 创建简单pod-Kubernets合辑5-Pod控制器

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```
apiVersion: v1
kind: Pod
metadata:
  name: pod-demo
  namespace: app
  labels:
    app: centos7
    release: stable
    environment: dev
spec:
  containers:
  - name: centos
    image: harbor.od.com/public/centos:7
    command:
    - /bin/bash
    - -c
    - "sleep 3600"

```

```
[root@hdss7-21 ~]# kubectl apply -f http://k8s-yaml.od.com/base_resource/pods/myapp.yaml
[root@hdss7-21 ~]# kubectl get pod -o wide -n app
NAME       READY   STATUS    RESTARTS   AGE   IP           NODE                NOMINATED NODE   READINESS GATES
pod-demo   1/1     Running   0          16s   172.7.22.2   hdss7-22.host.com   <none>           <none>
[root@hdss7-21 ~]# kubectl exec pod-demo -n app -- ps uax
USER        PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root          1  0.0  0.0   4364   352 ?        Ss   04:41   0:00 sleep 3600
root         11  0.0  0.0  51752  1696 ?        Rs   04:42   0:00 ps uax
```

```
[root@hdss7-21 ~]# kubectl describe pod pod-demo -n app | tail
Events:
  Type    Reason     Age    From                        Message
  ----    ------     ----   ----                        -------
  Normal  Scheduled  3m46s  default-scheduler           Successfully assigned app/pod-demo to hdss7-22.host.com
  Normal  Pulling    3m45s  kubelet, hdss7-22.host.com  Pulling image "harbor.od.com/public/centos:7"
  Normal  Pulled     3m45s  kubelet, hdss7-22.host.com  Successfully pulled image "harbor.od.com/public/centos:7"
  Normal  Created    3m45s  kubelet, hdss7-22.host.com  Created container centos
  Normal  Started    3m45s  kubelet, hdss7-22.host.com  Started container centos

```

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