{"id":35873,"date":"2023-03-13T11:54:43","date_gmt":"2024-02-21T11:52:09","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8epersistent-volumes%e7%9a%84%e5%86%85%e5%ae%b9\/"},"modified":"2024-04-29T18:40:11","modified_gmt":"2024-04-29T10:40:11","slug":"%e5%85%b3%e4%ba%8epersistent-volumes%e7%9a%84%e5%86%85%e5%ae%b9","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%85%b3%e4%ba%8epersistent-volumes%e7%9a%84%e5%86%85%e5%ae%b9\/","title":{"rendered":"\u5173\u4e8ePersistent Volumes\u7684\u5185\u5bb9"},"content":{"rendered":"

\u5173\u4e8e\u6301\u4e45\u5377\uff08Persistent Volumes\uff09<\/h3>\n

\u9996\u5148<\/h4>\n

Kubernetes\uff08K8s\uff09\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u5bb9\u5668\u7f16\u6392\u5e73\u53f0\uff0c\u7528\u4e8e\u81ea\u52a8\u5316\u90e8\u7f72\u3001\u6269\u5c55\u548c\u7ba1\u7406\u5bb9\u5668\u5316\u5e94\u7528\u7a0b\u5e8f\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u4ecb\u7ecdK8s\u6838\u5fc3\u7684\u5b58\u50a8\u6982\u5ff5\uff0c\u5373\u6301\u4e45\u5377\uff08Persistent Volumes\uff0cPV\uff09\u548c\u6301\u4e45\u5377\u58f0\u660e\uff08Persistent Volume Claims\uff0cPVC\uff09\u3002<\/p>\n

2. \u6301\u7eed\u5377\uff08PV\uff09\u662f\u4ec0\u4e48\uff1f<\/h4>\n

PV\u306e\u6982\u5ff5:
\nPV\u306f\u30af\u30e9\u30b9\u30bf\u5185\u306e\u30b9\u30c8\u30ec\u30fc\u30b8\u306e\u4e00\u90e8\u3092\u8868\u3059\u30ea\u30bd\u30fc\u30b9\u3067\u3059\u3002\u3053\u306e\u30b9\u30c8\u30ec\u30fc\u30b8\u306f\u3001\u5916\u90e8\u306e\u30af\u30e9\u30a6\u30c9\u30d7\u30ed\u30d0\u30a4\u30c0\u304b\u3089\u306e\u30b9\u30c8\u30ec\u30fc\u30b8\u3084\u30ed\u30fc\u30ab\u30eb\u306e\u7269\u7406\u7684\u306a\u30c7\u30a3\u30b9\u30af\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u30bd\u30fc\u30b9\u3092\u6301\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u4ee5\u4e0b\u662fPV\u8a2d\u5b9a\u7684\u4f8b\u5b50\uff1a<\/p>\n

apiVersion<\/span>:<\/span> v1<\/span>\r\nkind<\/span>:<\/span> PersistentVolume<\/span>\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> mypv<\/span>\r\nspec<\/span>:<\/span>\r\n  capacity<\/span>:<\/span>\r\n    storage<\/span>:<\/span> 10Gi<\/span>\r\n  volumeMode<\/span>:<\/span> Filesystem<\/span>\r\n  accessModes<\/span>:<\/span>\r\n    -<\/span> ReadWriteOnce<\/span>\r\n  persistentVolumeReclaimPolicy<\/span>:<\/span> Retain<\/span>\r\n  storageClassName<\/span>:<\/span> slow<\/span>\r\n  mountOptions<\/span>:<\/span>\r\n    -<\/span> hard<\/span>\r\n    -<\/span> nfsvers=4.1<\/span>\r\n  nfs<\/span>:<\/span>\r\n    path<\/span>:<\/span> \/path\/to\/my\/data<\/span>\r\n    server<\/span>:<\/span> nfs-server.example.com<\/span>\r\n<\/code><\/pre>\n
3. \u6301\u4e45\u6027\u5377\u7d22\u53d6\uff08PVC\uff09\u662f\u4ec0\u4e48\uff1f<\/h4>\n
PVC\u306e\u5f79\u5272\u3068\u52d5\u4f5c:
\nPVC\u306f\u30e6\u30fc\u30b6\u30fc\u306b\u3088\u3063\u3066\u30ea\u30af\u30a8\u30b9\u30c8\u3055\u308c\u308b\u30b9\u30c8\u30ec\u30fc\u30b8\u306e\u91cf\u3084\u30a2\u30af\u30bb\u30b9\u30e2\u30fc\u30c9\u3092\u8868\u3059\u30ea\u30bd\u30fc\u30b9\u3067\u3059\u3002PVC\u306f\u305d\u306e\u8981\u6c42\u3092\u6e80\u305f\u3059\u305f\u3081\u306e\u9069\u5207\u306aPV\u3092\u63a2\u3057\u3066\u30d0\u30a4\u30f3\u30c9\u3057\u307e\u3059\u3002<\/p>\n
\u4ee5\u4e0b\u662fPVC\u7684\u8a2d\u5b9a\u7bc4\u4f8b\uff1a<\/p>\n
apiVersion<\/span>:<\/span> v1<\/span>\r\nkind<\/span>:<\/span> PersistentVolumeClaim<\/span>\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> mypvc<\/span>\r\nspec<\/span>:<\/span>\r\n  accessModes<\/span>:<\/span>\r\n    -<\/span> ReadWriteOnce<\/span>\r\n  resources<\/span>:<\/span>\r\n    requests<\/span>:<\/span>\r\n      storage<\/span>:<\/span> 8Gi<\/span>\r\n  storageClassName<\/span>:<\/span> slow<\/span>\r\n<\/code><\/pre>\n
4. \u5b58\u50a8\u7c7b\u578b\u548cPV\u80cc\u540e\u7684\u6280\u672f<\/h4>\n
\u4e3b\u673a\u57fa\u7840\u7684\u5377\uff1a\u4e3b\u673a\u8def\u5f84\uff1a<\/p>\n
apiVersion<\/span>:<\/span> v1<\/span>\r\nkind<\/span>:<\/span> Pod<\/span>\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> mypod<\/span>\r\nspec<\/span>:<\/span>\r\n  containers<\/span>:<\/span>\r\n  -<\/span> name<\/span>:<\/span> myfrontend<\/span>\r\n    image<\/span>:<\/span> nginx<\/span>\r\n    volumeMounts<\/span>:<\/span>\r\n    -<\/span> mountPath<\/span>:<\/span> \"<\/span>\/var\/www\/html\"<\/span>\r\n      name<\/span>:<\/span> mypd<\/span>\r\n  volumes<\/span>:<\/span>\r\n  -<\/span> name<\/span>:<\/span> mypd<\/span>\r\n    hostPath<\/span>:<\/span>\r\n      path<\/span>:<\/span> \/data\/on\/host<\/span>\r\n<\/code><\/pre>\n
5. \u914d\u7f6e\u65b9\u6cd5<\/h4>\n
\u5132\u5b58\u985e\u5225\uff08StorageClass\uff09\u7684\u52d5\u614b\u914d\u7f6e\u8a2d\u5b9a\u7bc4\u4f8b\u3002<\/p>\n
apiVersion<\/span>:<\/span> storage.k8s.io\/v1<\/span>\r\nkind<\/span>:<\/span> StorageClass<\/span>\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> slow<\/span>\r\nprovisioner<\/span>:<\/span> kubernetes.io\/gce-pd<\/span>\r\nparameters<\/span>:<\/span>\r\n  type<\/span>:<\/span> pd-standard<\/span>\r\n<\/code><\/pre>\n
6. \u5b58\u50a8\u7c7b\u4e0e\u5176\u4f7f\u7528<\/h4>\n
StorageClass\u7684\u8bbe\u7f6e\u793a\u4f8b:<\/p>\n
apiVersion<\/span>:<\/span> storage.k8s.io\/v1<\/span>\r\nkind<\/span>:<\/span> StorageClass<\/span>\r\nmetadata<\/span>:<\/span>\r\n  name<\/span>:<\/span> fast<\/span>\r\nprovisioner<\/span>:<\/span> kubernetes.io\/gce-pd<\/span>\r\nparameters<\/span>:<\/span>\r\n  type<\/span>:<\/span> pd-ssd<\/span>\r\n<\/code><\/pre>\n
7. CSI\uff08\u5bb9\u5668\u5b58\u50a8\u63a5\u53e3\uff09\u7684\u6982\u8ff0<\/h4>\n
CSI\u4e3aK8s\u548c\u4e0d\u540c\u7684\u5b58\u50a8\u63d0\u4f9b\u5546\u4e4b\u95f4\u63d0\u4f9b\u4e86\u6807\u51c6\u63a5\u53e3\uff0c\u4ece\u800c\u5b9e\u73b0\u4e86\u5c06\u5404\u79cd\u5b58\u50a8\u89e3\u51b3\u65b9\u6848\u4e0eK8s\u96c6\u6210\u7684\u529f\u80fd\u3002<\/p>\n
8. \u592a\u9633\u80fd\u63a7\u5236\u5668\u548c\u5149\u4f0f\/\u5149\u7535\u6c60\u7684\u751f\u547d\u5468\u671f<\/h4>\n
\u5149\u4f0f\u63a7\u5236\u5668\u662f\u4ec0\u4e48\uff1f<\/h4>\n
PV\u63a7\u5236\u5668\u662fKubernetes\u63a7\u5236\u5e73\u9762\u7684\u4e00\u90e8\u5206\uff0c\u8d1f\u8d23\u76d1\u89c6\u548c\u7ba1\u7406PV\u548cPVC\u7684\u751f\u547d\u5468\u671f\u3002\u63a7\u5236\u5668\u8d1f\u8d23\u81ea\u52a8\u7ed1\u5b9a\u6ee1\u8db3\u7279\u5b9aPVC\u6240\u9700\u8d44\u6e90\u7684PV\uff0c\u4ee5\u53ca\u6839\u636e\u91cd\u65b0\u58f0\u660e\u7b56\u7565\u91cd\u65b0\u5229\u7528PV\u8d44\u6e90\u7b49\u8bb8\u591a\u81ea\u52a8\u5316\u4efb\u52a1\u3002<\/p>\n
\u805a\u6c2f\u4e59\u70ef\uff08PVC\uff09\u548c\u5149\u4f0f\uff08PV\uff09\u7684\u5bff\u547d\u5468\u671f<\/h4>\n
    \n
  1. \n
      \u5b58\u50a8\u4f9b\u5e94:<\/ol>\n<\/li>\n<\/ol>\n
       <\/p>\n
        \n
      1. \n
          \u7528\u6237\u901a\u8fc7\u521b\u5efaPVC\u6765\u8868\u660e\u5bf9\u5b58\u50a8\u7684\u9700\u6c42\u3002\u5728\u52a8\u6001\u4f9b\u5e94\u7684\u60c5\u51b5\u4e0b\uff0c\u5982\u679c\u6ca1\u6709\u4e0ePVC\u7684\u9700\u6c42\u5339\u914d\u7684PV\uff0c\u5c06\u81ea\u52a8\u8fdb\u884c\u65b0\u7684PV\u4f9b\u5e94\u3002<\/ol>\n<\/li>\n<\/ol>\n
          \u7ed1\u5b9a:
          \n\u5f53PVC\u7684\u9700\u6c42\u4e0ePV\u5339\u914d\u65f6\uff0c\u901a\u8fc7PV\u63a7\u5236\u5668\u8fdb\u884c\u7ed1\u5b9a\u3002\u8fd9\u6837\uff0cPVC\u4e0e\u7279\u5b9a\u7684PV\u5173\u8054\uff0c\u5360\u7528\u76f8\u5e94\u7684\u5b58\u50a8\u7a7a\u95f4\u3002<\/p>\n
          \u4f7f\u7528:
          \nPod\u4f7f\u7528PVC\u6765\u8bbf\u95ee\u5176\u5b58\u50a8\u5e76\u8bfb\u5199\u6570\u636e\u3002\u5728\u6b64\u8fc7\u7a0b\u4e2d\uff0c\u53ea\u9700\u6307\u5b9aPVC\u7684\u540d\u79f0\uff0c\u65e0\u9700\u62c5\u5fc3\u5b9e\u9645\u5b58\u50a8\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u5373\u53ef\u4f7f\u7528\u6570\u636e\u3002<\/p>\n
          \u91ca\u653e:
          \n\u5f53PVC\u5bf9\u8c61\u88ab\u5220\u9664\u65f6\uff0c\u4e0e\u5176\u7ed1\u5b9a\u7684PV\u5c06\u88ab\u91ca\u653e\u3002\u8fd9\u65f6\uff0c\u6839\u636ePV\u7684\u91cd\u65b0\u7d22\u53d6\u7b56\u7565\uff0c\u51b3\u5b9a\u5982\u4f55\u5904\u7406\u540e\u7eed\u7684PV\uff08\u4f8b\u5982\uff1a\u4fdd\u7559\u3001\u5220\u9664\u3001\u56de\u6536\uff09\u3002<\/p>\n
          \u91cd\u65b0\u7d22\u53d6:
          \n\u5982\u679cPV\u88ab\u91cd\u65b0\u4f7f\u7528\uff0c\u6839\u636e\u5176\u91cd\u65b0\u7d22\u53d6\u7b56\u7565\uff0c\u51b3\u5b9a\u4fdd\u7559\u3001\u5220\u9664\u6216\u521d\u59cb\u5316\u4f9b\u518d\u5229\u7528\u7684PV\u6570\u636e\u3002<\/p>\n
          9. \u603b\u7ed3<\/h4>\n
          Kubernetes\u7684PV\u548cPVC\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u529f\u80fd\uff0c\u4ee5\u6ee1\u8db3\u5bb9\u5668\u5316\u5e94\u7528\u7a0b\u5e8f\u7684\u6301\u4e45\u5316\u5b58\u50a8\u9700\u6c42\u3002\u901a\u8fc7\u9009\u62e9\u6b63\u786e\u7684\u5b58\u50a8\u89e3\u51b3\u65b9\u6848\u548c\u7ba1\u7406\u65b9\u6cd5\uff0c\u5e94\u7528\u7a0b\u5e8f\u53ef\u4ee5\u6709\u6548\u5730\u6269\u5c55\uff0c\u5e76\u4fdd\u8bc1\u6570\u636e\u7684\u6301\u4e45\u6027\u548c\u53ef\u7528\u6027\u3002<\/p>\n
          \u9451\u65bc Container Storage Interface\uff08CSI\uff09\u70ba\u4e00\u500b\u5021\u8b70\uff0c\u65e8\u5728\u70ba\u5bb9\u5668\u7de8\u6392\u7cfb\u7d71\uff08\u5982 Kubernetes\u3001Mesos\u7b49\uff09\u8207\u5132\u5b58\u5f8c\u7aef\u4e4b\u9593\u63d0\u4f9b\u6a19\u6e96\u5316\u7684\u4ecb\u9762\u3002\u9019\u6a23\u4e00\u4f86\uff0c\u5132\u5b58\u4f9b\u61c9\u5546\u53ef\u4ee5\u7de8\u5beb\u4e00\u500b\u55ae\u4e00\u7684\u63d2\u4ef6\uff0c\u4ee5\u4f9b\u61c9\u4e0d\u540c\u7684\u5bb9\u5668\u7de8\u6392\u7cfb\u7d71\u4f7f\u7528\u3002<\/p>\n
          10. \u8d60\u54c1<\/h4>\n
          CSI\u7684\u4e3b\u8981\u7279\u5f81\u548c\u76ee\u7684\uff1a<\/p>\n
            \n
          1. \n
              \u5e73\u53f0\u7684\u4e2d\u7acb\u6027\uff1aCSI\u88ab\u8bbe\u8ba1\u4e3a\u4e0d\u4f9d\u8d56\u4e8e\u8bf8\u5982Kubernetes\u7b49\u5bb9\u5668\u7f16\u6392\u5e73\u53f0\uff0c\u5e76\u80fd\u5728\u5404\u79cd\u7cfb\u7edf\u4e0a\u8fd0\u884c\u3002<\/ol>\n<\/li>\n<\/ol>\n
              \u7aef\u5230\u7aef\u7684\u5377\u751f\u547d\u5468\u671f\uff1aCSI\u652f\u6301\u5b58\u50a8\u7684\u5b8c\u6574\u751f\u547d\u5468\u671f\uff0c\u5305\u62ec\u5377\u7684\u914d\u7f6e\u3001\u6302\u8f7d\u3001\u5378\u8f7d\u7b49\u64cd\u4f5c\u3002<\/p>\n
              \u5916\u90e8\u5316\uff1aCSI\u63d2\u4ef6\u5b58\u5728\u4e8e\u5bb9\u5668\u7f16\u6392\u7cfb\u7edf\u7684\u5916\u90e8\uff0c\u4ece\u800c\u5c06\u5b58\u50a8\u903b\u8f91\u4e0e\u6838\u5fc3\u7f16\u6392\u903b\u8f91\u5206\u9694\u5f00\u3002\u8fd9\u4f7f\u5f97\u5b58\u50a8\u4f9b\u5e94\u5546\u53ef\u4ee5\u5728\u4e0d\u66f4\u65b0\u63d2\u4ef6\u7684\u60c5\u51b5\u4e0b\u6dfb\u52a0\u65b0\u529f\u80fd\u6216\u4fee\u590d\u9519\u8bef\u3002<\/p>\n
              \u6807\u51c6\u5316\uff1aCSI\u7684\u76ee\u6807\u662f\u786e\u4fdd\u5b58\u50a8\u63a5\u53e3\u7684\u4e00\u81f4\u6027\u548c\u6807\u51c6\u5316\uff0c\u4ece\u800c\u4f7f\u5b58\u50a8\u63d0\u4f9b\u5546\u4e0d\u518d\u9700\u8981\u7f16\u5199\u9002\u7528\u4e8e\u4e0d\u540c\u5bb9\u5668\u7f16\u6392\u5e73\u53f0\u7684\u591a\u4e2a\u63d2\u4ef6\u3002<\/p>\n
              CSI\u7684\u4e3b\u8981\u64cd\u4f5c:
              \nCSI\u7684\u4e3b\u8981\u64cd\u4f5c\uff1a<\/p>\n
                \n
              1. \n
                  \u8eab\u4efd\u670d\u52a1\uff1a\u516c\u5f00\u63d2\u4ef6\u529f\u80fd\u548c\u7248\u672c\u4fe1\u606f\u3002<\/ol>\n<\/li>\n<\/ol>\n
                  \u63a7\u5236\u5668\u670d\u52a1\uff1a\u652f\u6301\u63a7\u5236\u5668\u7279\u5b9a\u7684\u64cd\u4f5c\uff0c\u5982\u5377\u7684\u89c4\u5212\u3001\u9644\u52a0\u3001\u5feb\u7167\u521b\u5efa\u7b49\u3002<\/p>\n
                  \u8282\u70b9\u670d\u52a1\uff1a\u652f\u6301\u8282\u70b9\u7279\u5b9a\u7684\u64cd\u4f5c\uff0c\u5982\u5377\u7684\u6302\u8f7d\u548c\u5378\u8f7d\u7b49\u3002<\/p>\n
                  CSI\u5bf9\u4e8eKubernetes\u5185\u7684\u5165\u53e3\u5b58\u50a8\u63d2\u4ef6\u67b6\u6784\u5e26\u6765\u4e86\u9769\u547d\u3002\u7531\u4e8e\u5165\u53e3\u63d2\u4ef6\u662f\u76f4\u63a5\u5d4c\u5165\u5728Kubernetes\u7684\u4ee3\u7801\u5e93\u4e2d\u7684\uff0c\u56e0\u6b64\u5b83\u7684\u66f4\u65b0\u548c\u7ef4\u62a4\u53d8\u5f97\u590d\u6742\u3002CSI\u7684\u91c7\u7528\u4f7f\u5f97\u5b58\u50a8\u63d0\u4f9b\u8005\u53ef\u4ee5\u72ec\u7acb\u5730\u3001\u66f4\u5feb\u901f\u3001\u66f4\u5b89\u5168\u5730\u5f00\u53d1\u3001\u53d1\u5e03\u548c\u66f4\u65b0\u63d2\u4ef6\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
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