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  • 【k8s】sc-nfs-sts

    环境

    1. kubernetes 1.20.6
    2. Spring Boot 2.5.0-RC1

    目标

    sts 可以使用 pvc 模板创建。

    sts.yaml

    apiVersion: apps/v1
    kind: StatefulSet
    metadata:
      name: mysts
    spec:
      selector:
        matchLabels:
          app: mysts
      serviceName: mysts
      replicas: 3
      template:
        metadata:
          labels:
            app: mysts
        spec:
          containers:
            - name: mysts
              image: busybox:stable
              command:
                - "/bin/sh"
              args:
                - "-c"
                - "hostname > /mnt/hostname.txt;sleep 3600"
              volumeMounts:
                - name: pvc
                  mountPath: /mnt
      volumeClaimTemplates:
        - metadata:
            name: pvc
          spec:
            accessModes: ["ReadWriteMany"]
            storageClassName: nfs-storage
            resources:
              requests:
                storage: 1Mi
    

    查看

    [root@master ~]# kubectl get pod
    NAME      READY   STATUS    RESTARTS   AGE
    mysts-0   1/1     Running   0          15s
    mysts-1   1/1     Running   0          13s
    mysts-2   1/1     Running   0          9s
    [root@master ~]# kubectl get pvc
    NAME          STATUS   VOLUME                                     CAPACITY   ACCESS MODES   STORAGECLASS   AGE
    pvc-mysts-0   Bound    pvc-3bdabcce-10bb-49d8-b667-b8de31970806   1Mi        RWX            nfs-storage    2m58s
    pvc-mysts-1   Bound    pvc-31adf6d4-cd72-4a94-830e-c215dd1f1456   1Mi        RWX            nfs-storage    16s
    pvc-mysts-2   Bound    pvc-18346c10-9690-4544-9a18-470790f1d5b1   1Mi        RWX            nfs-storage    12s
    [root@master ~]# kubectl get pv
    NAME                                       CAPACITY   ACCESS MODES   RECLAIM POLICY   STATUS   CLAIM                 STORAGECLASS   REASON   AGE
    pvc-18346c10-9690-4544-9a18-470790f1d5b1   1Mi        RWX            Delete           Bound    default/pvc-mysts-2   nfs-storage             15s
    pvc-31adf6d4-cd72-4a94-830e-c215dd1f1456   1Mi        RWX            Delete           Bound    default/pvc-mysts-1   nfs-storage             19s
    pvc-3bdabcce-10bb-49d8-b667-b8de31970806   1Mi        RWX            Delete           Bound    default/pvc-mysts-0   nfs-storage             3m1s
    

    查看 nfs 目录

    [root@master nfs]# ll
    total 0
    drwxrwxrwx 2 nfsnobody nfsnobody 26 May 30 22:17 default-pvc-mysts-0-pvc-3bdabcce-10bb-49d8-b667-b8de31970806
    drwxrwxrwx 2 nfsnobody nfsnobody 26 May 30 22:20 default-pvc-mysts-1-pvc-31adf6d4-cd72-4a94-830e-c215dd1f1456
    drwxrwxrwx 2 nfsnobody nfsnobody 26 May 30 22:20 default-pvc-mysts-2-pvc-18346c10-9690-4544-9a18-470790f1d5b1
    [root@master nfs]# cat */hostname.txt
    mysts-0
    mysts-1
    mysts-2
    

    总结

    sts 使用 pvc 模板创建存储。

    附录

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  • 原文地址:https://www.cnblogs.com/jiangbo44/p/14956990.html
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