{"id":50115,"date":"2022-08-15T09:48:57","date_gmt":"2023-06-12T17:25:50","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/kubernetes%e5%ae%98%e6%96%b9%e7%a4%ba%e4%be%8b%ef%bc%9a%e9%80%9a%e8%bf%87persistentvolume%e6%9e%84%e5%bb%bacassandra%e3%80%82\/"},"modified":"2024-01-15T13:06:43","modified_gmt":"2024-01-15T05:06:43","slug":"kubernetes%e5%ae%98%e6%96%b9%e7%a4%ba%e4%be%8b%ef%bc%9a%e9%80%9a%e8%bf%87persistentvolume%e6%9e%84%e5%bb%bacassandra%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/kubernetes%e5%ae%98%e6%96%b9%e7%a4%ba%e4%be%8b%ef%bc%9a%e9%80%9a%e8%bf%87persistentvolume%e6%9e%84%e5%bb%bacassandra%e3%80%82\/","title":{"rendered":"Kubernetes\u5b98\u65b9\u793a\u4f8b\uff1a\u901a\u8fc7PersistentVolume\u6784\u5efaCassandra"},"content":{"rendered":"

\u9996\u5148<\/h1>\n

\u6211\u5df2\u7ecf\u6267\u884c\u4e86Kubernetes\u5b98\u65b9\u6587\u6863\u7684\u793a\u4f8b\uff1a\u4f7f\u7528Stateful Sets\u90e8\u7f72Cassandra\u3002<\/p>\n

\u7531\u4e8eNFS\u5b58\u50a8\u662f\u901a\u8fc7PersistentVolume\uff08PV\uff09\u8fdb\u884c\u4fdd\u7559\u7684\uff0c\u6240\u4ee5\u76f4\u63a5\u4f7f\u7528StorageClass\uff08SC\uff09\u8fdb\u884c\u64cd\u4f5c\u53d8\u5f97\u56f0\u96be\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u6539\u7528PV\u8fdb\u884c\u64cd\u4f5c\uff0c\u5e76\u603b\u7ed3\u4e86\u8981\u70b9\u3002<\/p>\n

\u8fd9\u4e2aPersistentVolume\u662f\u6839\u636e\u4e4b\u524d\u5728Kubernetes\u4e2d\u4f7f\u7528NFS\u51c6\u5907PersistentStorage\u7684\u7ecf\u9a8c\u8fdb\u884c\u51c6\u5907\u7684\u3002<\/p>\n

\u6709\u4eba\u5bf9\u5982\u4f55\u5728NFS\u4e3a\u524d\u63d0\u4e0b\u786e\u4fddSC\u8fdb\u884c\u4e86\u603b\u7ed3\uff0c\u4f46\u6211\u5e76\u672a\u8fdb\u884c\u5c1d\u8bd5\u3002<\/p>\n

\u5173\u4e8e\u73af\u5883<\/h1>\n

\u4f7f\u7528Kubespray\u5de5\u5177\u6784\u5efaKubernetes\u96c6\u7fa4\uff0c\u75314\u53f0\u642d\u8f7dXeon E3\u7684\u670d\u52a1\u5668\u7ec4\u6210\uff0c\u6bcf\u4e2a\u8282\u70b9\u5177\u670924GB\u7684\u5185\u5b58\u3002<\/p>\n

\u5173\u4e8e\u516c\u5f0f\u6b65\u9aa4\u7684\u4e0d\u540c\u4e4b\u5904<\/h1>\n

\u9664\u4e86\u4f7f\u7528PV\u800c\u4e0d\u662fSC\u4e4b\u5916\uff0c\u5b83\u5728\u4ee5\u4e0b\u65b9\u9762\u6709\u6240\u4e0d\u540c\u3002<\/p>\n

\u66f4\u6539\u547d\u540d\u7a7a\u95f4<\/h2>\n

Namespace \u4e0d\u662f\u9ed8\u8ba4\u7684\uff0c\u800c\u662f\u4f7f\u7528 cassandra\u3002
\n$ kubectl \u521b\u5efa\u547d\u540d\u7a7a\u95f4 cassandra<\/p>\n

\u56e0\u6b64\uff0c\u5728\u6267\u884ckubectl\u547d\u4ee4\u65f6\uff0c\u59cb\u7ec8\u4f1a\u9644\u52a0-n cassandra\u3002
\n$ \u522b\u540dkubectl =’kubectl -n cassandra’<\/p>\n

\u56e0\u6b64\uff0c\u5728kube-dns\u5f15\u7528\u4e3b\u673a\u540d\u65f6\uff0c\u4f7f\u7528\u7c7b\u4f3c\u4e8ecassandra-0.cassandra.cassandra.svc.cluster.local\u7684\u5b8c\u5168\u9650\u5b9a\u57df\u540d\uff08FQDN\uff09\u3002<\/p>\n

\u5c06\u516c\u5f0f\u7684YAML\u8f6c\u6362\u4e3a\u5176\u4ed6\u8868\u8fbe\u65b9\u5f0f<\/h1>\n

cassandra-service.yaml\u6ca1\u6709\u4efb\u4f55\u66f4\u6539\u3002<\/p>\n

\u5728\u914d\u7f6eStatefulSet\u4e4b\u524d\uff0c\u9700\u8981\u51c6\u5907\u5377\uff08Volume\uff09\u3002<\/p>\n

\u6301\u4e45\u5377\u7d22\u53d6\uff08PVC\uff09\u7684\u914d\u7f6e<\/h2>\n

\u4e3a\u4e86\u4e8b\u5148\u51c6\u5907\u597d\u6240\u9700\u7684PVC\u6570\u91cf\u4e0e\u8981\u914d\u7f6e\u7684\u526f\u672c\u6570\u91cf\u76f8\u5339\u914d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u7b80\u5355\u7684\u811a\u672c\u6765\u751f\u6210\u5e76\u914d\u7f6eYAML\u3002<\/p>\n

#!\/bin\/bash<\/span>\r\n\r\ni<\/span>=<\/span>0\r\nwhile <\/span>test<\/span> \"<\/span>$i<\/span>\"<\/span> -lt<\/span> \"<\/span>$1<\/span>\"<\/span> ;<\/span> do <\/span>sed<\/span> -e<\/span> \"s\/_NUM_\/<\/span>$i<\/span>\/\"<\/span> <<<\/span> EOF<\/span> ; i=<\/span>$((<\/span>$i<\/span>+<\/span>1<\/span>))<\/span> ; done\r\n---\r\napiVersion: v1\r\nkind: PersistentVolumeClaim\r\nmetadata:\r\n  name: cassandra-data-cassandra-_NUM_\r\n  labels:\r\n    app: cassandra\r\n  annotations:\r\n    \"volume.beta.kubernetes.io\/storage-class\": \"slow\"\r\nspec:\r\n  accessModes:\r\n    - ReadWriteOnce\r\n  resources:\r\n    requests:\r\n      storage: 5G\r\n<\/span>EOF\r\n<\/span><\/code><\/pre>\n
\u8bf7\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u884c\u4fdd\u75594\u4e2aPVC\u3002<\/p>\n
$ <\/span>bash gen-pvc-yaml.sh 4 | kubectl apply -f<\/span> -\r\npersistentvolumeclaim\/cassandra-data-cassandra-0 created\r\npersistentvolumeclaim\/cassandra-data-cassandra-1 created\r\npersistentvolumeclaim\/cassandra-data-cassandra-2 created\r\npersistentvolumeclaim\/cassandra-data-cassandra-3 created\r\n<\/code><\/pre>\n
\u5728volumeClaimTemplates\u4e2d\u6307\u5b9a\u7684\u540d\u79f0\u662f\u7531volumeMounts\u4e2d\u6307\u5b9a\u7684name\uff08cassandra-data\uff09\u548c\u4e3b\u673a\u540d\uff08cassandra-\uff03\uff09\u8fde\u63a5\u8d77\u6765\u7684\u5b57\u7b26\u4e32\uff0c\u4e2d\u95f4\u7528\u8fde\u5b57\u7b26\u201c – \u201d\u5206\u9694\u3002<\/p>\n
\u6267\u884c StatefulSet<\/h2>\n
\u7531\u4e8e\u5168\u6587\u8f83\u957f\uff0c\u4ec5\u663e\u793a\u6765\u81ea\u5b98\u65b9cassandra-statefulset.yaml\u7684\u4e0d\u540c\u90e8\u5206\u3002<\/p>\n
    \n
  1. \n
      \u7531\u4e8e\u5c06Namespace\u4ecedefault\u66f4\u6539\u4e3acassandra\uff0c\u56e0\u6b64\u53ea\u66f4\u6539\u4e86\u4e3b\u673a\u540d\u7684\u90a3\u90e8\u5206\u3002<\/ol>\n<\/li>\n<\/ol>\n
       <\/p>\n
        \n
      1. \n
          \u7531\u4e8e\u5c06NFS\u7684PV\u8bbe\u7f6e\u4e3a\u201cslow\u201d\uff0c\u56e0\u6b64\u6dfb\u52a0\u4e86\u76f8\u5e94\u7684annotations\u3002<\/ol>\n<\/li>\n<\/ol>\n
           <\/p>\n
            \u7531\u4e8e\u4e0d\u4f7f\u7528SC\u914d\u7f6e\uff0c\u56e0\u6b64\u5c06\u6587\u4ef6\u672b\u5c3e\u7684\u6240\u6709SC\u76f8\u5173\u8bbe\u7f6e\u90fd\u5220\u9664\u4e86\u3002<\/ol>\n
            $<\/span> diff -u 03.cassandra-satefulset.yaml.orig 03.cassandra-satefulset.yaml\r\n--- 03.cassandra-satefulset.yaml.orig   2018-10-16 00:41:48.633461617 +0900\r\n<\/span>+++ 03.cassandra-satefulset.yaml        2018-10-17 09:44:17.237267987 +0900\r\n<\/span>@@ -53,7 +53,7 @@<\/span>\r\n           - name: HEAP_NEWSIZE\r\n             value: 100M\r\n           - name: CASSANDRA_SEEDS\r\n-            value: \"cassandra-0.cassandra.default.svc.cluster.local\"\r\n<\/span>+            value: \"cassandra-0.cassandra.cassandra.svc.cluster.local\"\r\n<\/span>           - name: CASSANDRA_CLUSTER_NAME\r\n             value: \"K8Demo\"\r\n           - name: CASSANDRA_DC\r\n@@ -84,17 +84,10 @@<\/span>\r\n   volumeClaimTemplates:\r\n   - metadata:\r\n       name: cassandra-data\r\n+      annotations:\r\n+        \"volume.beta.kubernetes.io\/storage-class\": \"slow\"\r\n<\/span>     spec:\r\n       accessModes: [ \"ReadWriteOnce\" ]\r\n-      storageClassName: fast\r\n<\/span>       resources:\r\n         requests:\r\n           storage: 1Gi\r\n----\r\n-kind: StorageClass\r\n-apiVersion: storage.k8s.io\/v1\r\n-metadata:\r\n-  name: fast\r\n-provisioner: k8s.io\/minikube-hostpath\r\n-parameters:\r\n-  type: pd-ssd\r\n<\/span><\/code><\/pre>\n
            \u53ea\u9700\u4e00\u4e2a\u9009\u9879\u5c06\u4ee5\u4e0b\u5185\u5bb9\u5728\u6c49\u8bed\u4e2d\u8fdb\u884c\u672c\u5730\u5316\uff1a\u5c06\u8be5\u6587\u4ef6\u4f5c\u4e3a`kubectl apply -f`\u7684\u53c2\u6570\u8f93\u5165\u540e\uff0c\u96c6\u7fa4\u5c06\u4f1a\u542f\u52a8\u4e00\u6bb5\u65f6\u95f4\u3002<\/p>\n
            \u786e\u8ba4\u5de5\u4f5c\u72b6\u6001<\/h1>\n
            \u4f60\u53ef\u4ee5\u4f7f\u7528nodetool\u6765\u786e\u8ba4\u72b6\u6001\uff0c\u5c31\u50cf\u793a\u4f8b\u4e2d\u6240\u8ff0\u3002<\/p>\n
            $ <\/span>kubectl exec<\/span> -it<\/span> cassandra-0 --<\/span> nodetool status\r\nDatacenter: DC1-K8Demo\r\n======================<\/span>\r\nStatus<\/span>=<\/span>Up\/Down\r\n|\/ State<\/span>=<\/span>Normal\/Leaving\/Joining\/Moving\r\n--<\/span>  Address        Load       Tokens       Owns (<\/span>effective)<\/span>  Host ID                               Rack\r\nUN  10.233.106.89  70.95 KiB  32           75.9%             f6117ffa-2984-4489-ab00-105a3385eb9b  Rack1-K8Demo\r\nUN  10.233.108.57  104.55 KiB  32           66.0%             d2eb0880-fde8-460f-80b1-675c8393268b  Rack1-K8Demo\r\nUN  10.233.76.103  84.81 KiB  32           58.1%             4a672f4f-8364-445e-bce9-b3c5e1a181c6  Rack1-K8Demo\r\n<\/code><\/pre>\n
            \u4e3a\u4e86\u5f00\u59cb\u4f7f\u7528\u8fd9\u91cc\u7684\u8d44\u6e90<\/h1>\n
            \u670d\u52a1\u7684\u91cd\u65b0\u5b9a\u4e49<\/h2>\n
            \u4e3a\u4e86\u63a5\u53d7\u5916\u90e8\u8fde\u63a5\uff0c\u9700\u8981\u66f4\u6539Service\u7684\u5b9a\u4e49\u3002
            \n\u7531\u4e8e\u65e0\u6cd5\u4eceClusterIP\uff1aNone\u72b6\u6001\u66f4\u6539\u4e3aLoadBalancer\uff0c\u56e0\u6b64\u53ef\u4ee5\u901a\u8fc7\u5220\u9664\u4e00\u6b21\u670d\u52a1\u6216\u4f7f\u7528replace –force\u9009\u9879\u540c\u65f6\u8fdb\u884c\u5220\u9664\u548c\u8bbe\u7f6e\u6765\u8fdb\u884c\u914d\u7f6e\u3002<\/p>\n
            \u7531\u4e8e\u5df2\u7ecf\u5728MetalLB\u4e2d\u542f\u7528\u4e86LoadBalancer\uff0c\u56e0\u6b64\u6211\u5df2\u7ecf\u51c6\u5907\u597d\u4e86\u4ee5\u4e0b\u7c7b\u4f3c\u7684\u65b0YAML\u6587\u4ef6\u3002<\/p>\n
            apiVersion<\/span>:<\/span> v1<\/span>\r\nkind<\/span>:<\/span> Service<\/span>\r\nmetadata<\/span>:<\/span>\r\n  labels<\/span>:<\/span>\r\n    app<\/span>:<\/span> cassandra<\/span>\r\n  name<\/span>:<\/span> cassandra<\/span>\r\nspec<\/span>:<\/span>\r\n  ports<\/span>:<\/span>                                                                                                      \r\n  -<\/span> port<\/span>:<\/span> 9042<\/span>\r\n  selector<\/span>:<\/span>\r\n    app<\/span>:<\/span> cassandra<\/span>\r\n  type<\/span>:<\/span> LoadBalancer<\/span>\r\n<\/code><\/pre>\n
            \u6211\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u5e94\u7528\u4e86\u8fd9\u4e2a\u3002<\/p>\n
            $ <\/span>kubectl delete svc cassandra\r\n$ <\/span>kubectl apply -f<\/span> cassandra-service-withLB.yaml\r\n<\/code><\/pre>\n
            \u53ea\u9700\u901a\u8fc7\u6b64\u65b9\u6cd5\u68c0\u67e5\u670d\u52a1\uff0c\u5c31\u80fd\u786e\u8ba4\u8fde\u63a5\u6240\u7528\u7684\u5916\u90e8IP\u5730\u5740\u3002<\/p>\n
            $ <\/span>kubectl get svc cassandra\r\nNAME        TYPE           CLUSTER-IP     EXTERNAL-IP       PORT(<\/span>S)<\/span>          AGE\r\ncassandra   LoadBalancer   10.233.15.78   192.168.10.183   9042:30610\/TCP   9h\r\n<\/code><\/pre>\n
            \u4f7f\u7528cqlsh\u547d\u4ee4\u8fdb\u884c\u8fde\u63a5\u3002<\/h2>\n
            \u7531\u4e8e\u5728\u90e8\u7f72\u5728Kubernetes\u73af\u5883\u4e2d\u7684Cassandra\u5bb9\u5668\u955c\u50cf\u4e2d\u4f3c\u4e4e\u6ca1\u6709\u5305\u542bcqlsh\uff0c\u56e0\u6b64\u6211\u5c06\u5c1d\u8bd5\u4ece\u53e6\u4e00\u53f0\u542f\u7528\u4e86Docker\u7684\u53f0\u5f0f\u673a\u8fde\u63a5\u3002<\/p>\n
            \u6211\u6b63\u5728\u4f7f\u7528\u5728DockerHub\u4e0a\u6ce8\u518c\u7684library\/cassandra\u6765\u53c2\u8003\u8fd9\u4e2a\u6587\u6863\u3002<\/p>\n
            $ <\/span>sudo <\/span>docker pull cassandra\r\nUsing default tag: latest\r\nlatest: Pulling from library\/cassandra\r\nf17d81b4b692: Pull complete<\/span> \r\n...\r\nDigest: sha256:ea7777cd83ebe0e2d38db8eb07dc76f206fd9ce6b6dd48ee9a1bc303b9757a02\r\nStatus: Downloaded newer image for <\/span>cassandra:latest\r\n$ <\/span>sudo <\/span>docker run -it<\/span> --rm<\/span> cassandra sh -c<\/span> 'exec cqlsh 192.168.10.183'<\/span>\r\nConnected to K8Demo at 192.168.10.183:9042.\r\n[<\/span>cqlsh 5.0.1 | Cassandra 3.11.2 | CQL spec 3.4.4 | Native protocol v4]\r\nUse HELP for <\/span>help.\r\ncqlsh> CREATE KEYSPACE mykeyspace WITH REPLICATION =<\/span> {<\/span> 'class'<\/span>: 'SimpleStrategy'<\/span>, 'replication_factor'<\/span> : 2 }<\/span>;<\/span>\r\ncqlsh> DESCRIBE keyspaces;<\/span>\r\n\r\nsystem_schema  system      system_distributed\r\nsystem_auth    mykeyspace  system_traces\r\n\r\ncqlsh> \r\n<\/code><\/pre>\n
            \u6211\u5011\u5be6\u969b\u4e0a\u662f\u6e96\u5099\u4e86\u4e00\u500bMakefile\uff0c\u7136\u5f8c\u4f7f\u7528make\u547d\u4ee4\u4f86\u57f7\u884c\u5404\u500b\u76ee\u6a19\u3002<\/p>\n
            \u4e0a\u8ff0\u5185\u5bb9<\/p>\n","protected":false},"excerpt":{"rendered":"
            \u9996\u5148 \u6211\u5df2\u7ecf\u6267\u884c\u4e86Kubernetes\u5b98\u65b9\u6587\u6863\u7684\u793a\u4f8b\uff1a\u4f7f\u7528Stateful Sets\u90e8\u7f72Cassandra\u3002  […]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-50115","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nKubernetes\u5b98\u65b9\u793a\u4f8b\uff1a\u901a\u8fc7PersistentVolume\u6784\u5efaCassandra - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/kubernetes\u5b98\u65b9\u793a\u4f8b\uff1a\u901a\u8fc7persistentvolume\u6784\u5efacassandra\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kubernetes\u5b98\u65b9\u793a\u4f8b\uff1a\u901a\u8fc7PersistentVolume\u6784\u5efaCassandra\" \/>\n<meta property=\"og:description\" content=\"\u9996\u5148 \u6211\u5df2\u7ecf\u6267\u884c\u4e86Kubernetes\u5b98\u65b9\u6587\u6863\u7684\u793a\u4f8b\uff1a\u4f7f\u7528Stateful Sets\u90e8\u7f72Cassandra\u3002 […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/kubernetes\u5b98\u65b9\u793a\u4f8b\uff1a\u901a\u8fc7persistentvolume\u6784\u5efacassandra\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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