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  • StatefulSet删除

    1.分类

    级联删除: 删除StatefulSet时同时删除pod
    非级联删除: 删除StatefulSet时不删除pod
    

    2.级联删除

    [root@k8s-master01 ~]# kubectl get pod
    NAME                     READY   STATUS    RESTARTS   AGE
    nginx-6cdd5dd489-p426b   1/1     Running   0          4h4m
    web-0                    1/1     Running   0          6h11m
    web-1                    1/1     Running   0          6h12m
    web-2                    1/1     Running   0          4h23m
    web-3                    1/1     Running   0          4h24m
    web-4                    1/1     Running   0          4h24m
    
    [root@k8s-master01 ~]# kubectl delete sts  web
    statefulset.apps "web" deleted
    [root@k8s-master01 ~]# kubectl get pod
    NAME                     READY   STATUS        RESTARTS   AGE
    nginx-6cdd5dd489-p426b   1/1     Running       0          4h5m
    web-0                    1/1     Terminating   0          6h11m
    web-1                    0/1     Terminating   0          6h12m
    web-2                    0/1     Terminating   0          4h23m
    web-3                    1/1     Terminating   0          4h24m
    web-4                    1/1     Terminating   0          4h25m
    

    3.非级联删除

    [root@k8s-master01 ~]# kubectl get pod
    NAME                     READY   STATUS    RESTARTS   AGE
    nginx-6cdd5dd489-p426b   1/1     Running   0          4h7m
    web-0                    1/1     Running   0          62s
    web-1                    1/1     Running   0          42s
    
    [root@k8s-master01 ~]# kubectl delete sts web --cascade=false
    statefulset.apps "web" deleted
    [root@k8s-master01 ~]# kubectl get sts
    No resources found in default namespace.
    [root@k8s-master01 ~]# kubectl get pod                            ### 此时的pod变成了孤儿进程,被删除后不会再次重新生产
    NAME                     READY   STATUS    RESTARTS   AGE
    nginx-6cdd5dd489-p426b   1/1     Running   0          4h10m
    web-0                    1/1     Running   0          4m18s
    web-1                    1/1     Running   0          3m58s
    [root@k8s-master01 ~]# kubectl delete pod web-0 web-1
    pod "web-0" deleted
    pod "web-1" deleted
    [root@k8s-master01 ~]# kubectl get pod
    NAME                     READY   STATUS    RESTARTS   AGE
    nginx-6cdd5dd489-p426b   1/1     Running   0          4h13m
    [root@k8s-master01 ~]# kubectl get pod -l app=nginx -w
    NAME                     READY   STATUS    RESTARTS   AGE
    nginx-6cdd5dd489-p426b   1/1     Running   0          4h13m
    web-0                    1/1     Running   0          7m1s
    web-1                    1/1     Running   0          6m41s
    web-0                    1/1     Terminating   0          7m3s
    web-1                    1/1     Terminating   0          6m43s
    web-0                    0/1     Terminating   0          7m4s
    web-1                    0/1     Terminating   0          6m44s
    web-1                    0/1     Terminating   0          6m50s
    web-1                    0/1     Terminating   0          6m50s
    web-0                    0/1     Terminating   0          7m10s
    web-0                    0/1     Terminating   0          7m10s
    
    
    
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  • 原文地址:https://www.cnblogs.com/Applogize/p/14398217.html
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