|NO.Z.00207|——————————|CloudNative|——|KuberNetes&高级调度.V10|——|Affinity.v02|Affinity实验二：NotIn|

一、实验二：NotIn：

### --- pod不要部署在满足这些条件的节点上

~~~     # 把pod部署在label不要部署在 kubernetes.io/e2e-az-name；values:
~~~     是- e2e-az1和- e2e-az2节点上面。
~~~     # 这样它就会部署在具有这个label的节点上面- key: another-node-label-key；
~~~     values:- another-node-label-value

[root@k8s-master01 ~]# kubectl edit deploy demo-nginx
    spec:
      affinity:
        nodeAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
          - preference:
              matchExpressions:
              - key: another-node-label-key
                operator: In
                values:
                - another-node-label-value
            weight: 1
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
            - matchExpressions:
              - key: kubernetes.io/e2e-az-name
                operator: NotIn     # 把In改成NoIn，就是不要部署在具有这个标签的节点上面
                values:
                - e2e-az1
                - e2e-az2

### --- 可以看到部署在了k8s-master01上面，因为master01上是有那个标签的，
~~~     所以他一定会在master01上部署一个

[root@k8s-master01 ~]# kubectl get po -owide
NAME                          READY   STATUS        RESTARTS   AGE     IP               NODE           NOMINATED NODE   READINESS GATES
busybox                       1/1     Running       6          17h     172.25.244.247   k8s-master01   <none>           <none>
demo-nginx-65dbbcc544-9b6jr   2/2     Running       0          8s      172.25.244.194   k8s-master01   <none>           <none>
demo-nginx-65dbbcc544-cv5nw   2/2     Running       0          8s      172.25.244.255   k8s-master01   <none>           <none>
demo-nginx-79cc4bc-f8crn      0/2     Terminating   0          7m12s   <none>           k8s-node01     <none>           <none>
demo-nginx-79cc4bc-h8f9b      0/2     Terminating   0          7m12s   <none>           k8s-node01     <none>  

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Walter Savage Landor:strove with none,for none was worth my strife.Nature I loved and, next to Nature, Art:I warm'd both hands before the fire of life.It sinks, and I am ready to depart

                                                                                                                                                   ——W.S.Landor

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