CloudNative: nfs

NFS-StorageClass搭建

安装nfs server

1. yum install nfs-utils
2. mkdir -p /nfs/data
3. chmod -R 777 /nfs/data
   1. 若挂载磁盘的话执行:
      1. mkfs.xfs /dev/sdb
      2. mount /dev/sdb /nfs/data
      3. echo "/dev/sdb /nfs/data xfs defaults 0 0" >> /etc/fstab
4. echo "/nfs/data *(rw,no_root_squash,sync)" > /etc/exports
5. exportfs -r
6. systemctl enable nfs --now

安装k8s storage class

1. kubectl apply -f https://raw.githubusercontent.com/kubernetes-incubator/external-storage/master/nfs-client/deploy/rbac.yaml

2. 部署nfs-client-provisioner

   # 修改${NODE_IP}, 执行kubectl apply -f xx
   apiVersion: apps/v1
   kind: Deployment
   metadata:
     name: nfs-client-provisioner
     labels:
       app: nfs-client-provisioner
     namespace: default
   spec:
     replicas: 1
     selector:
       matchLabels:
         app: nfs-client-provisioner
     strategy:
       type: Recreate
     selector:
       matchLabels:
         app: nfs-client-provisioner
     template:
       metadata:
         labels:
           app: nfs-client-provisioner
       spec:
         serviceAccountName: nfs-client-provisioner
         containers:
           - name: nfs-client-provisioner
             image: quay.io/external_storage/nfs-client-provisioner:latest
             volumeMounts:
               - name: nfs-client-root
                 mountPath: /persistentvolumes
             env:
               - name: PROVISIONER_NAME
                 value: fuseim.pri/ifs
               - name: NFS_SERVER
                 value: ${NODE_IP}
               - name: NFS_PATH
                 value: /nfs/data
         volumes:
           - name: nfs-client-root
             nfs:
               server: ${NODE_IP}
               path: /nfs/data

3. 创建storage class

   #执行kubectl apply -f xx
   apiVersion: storage.k8s.io/v1
   kind: StorageClass
   metadata:
     name: nfs
   provisioner: fuseim.pri/ifs
   parameters:
     archiveOnDelete: "false"
   reclaimPolicy: Delete

4. 设置nfs为默认sc: kubectl patch storageclass nfs -p '{"metadata": {"annotations":{"storageclass.kubernetes.io/is-default-class":"true"}}}'