k8s動態分配存儲【helm安裝nfs-client】

前文：在所有節點安裝nfs-utils並啓動相關服務。

• NFS服務端新建一個掛載目錄

echo "/home/nfs *(rw,async,no_root_squash)" >> /etc/exports
exportfs -r
showmount -e localhost

•  安裝nfs-client

helm install stable/nfs-client-provisioner --name test-storageclass --set nfs.server=192.168.1.210 --set nfs.path=/home/nfs

可以先用命令"helm inspect values stable/nfs-client-provisioner"查看所有配置項，提前下載好鏡像。

replicaCount: 1
strategyType: Recreate

image:
  repository: quay.io/external_storage/nfs-client-provisioner
  tag: v3.1.0-k8s1.11
  pullPolicy: IfNotPresent

nfs:
  server:
  path: /ifs/kubernetes
  mountOptions:

# For creating the StorageClass automatically:
storageClass:
  create: true

  # Set a provisioner name. If unset, a name will be generated.
  # provisionerName:

  # Set StorageClass as the default StorageClass
  # Ignored if storageClass.create is false
  defaultClass: false

  # Set a StorageClass name
  # Ignored if storageClass.create is false
  name: nfs-client

  # Allow volume to be expanded dynamically
  allowVolumeExpansion: true

  # Method used to reclaim an obsoleted volume
  reclaimPolicy: Delete

  # When set to false your PVs will not be archived by the provisioner upon deletion of the PVC.
  archiveOnDelete: true

## For RBAC support:
rbac:
  # Specifies whether RBAC resources should be created
  create: true

# If true, create & use Pod Security Policy resources
# https://kubernetes.io/docs/concepts/policy/pod-security-policy/
podSecurityPolicy:
  enabled: false

## Set pod priorityClassName
# priorityClassName: ""

serviceAccount:
  # Specifies whether a ServiceAccount should be created
  create: true

  # The name of the ServiceAccount to use.
  # If not set and create is true, a name is generated using the fullname template
  name:

resources: {}
  # limits:
  #  cpu: 100m
  #  memory: 128Mi
  # requests:
  #  cpu: 100m
  #  memory: 128Mi

也可以修改下上面的yaml，直接通過nfs-client.yaml創建：

replicaCount: 1
strategyType: Recreate

image:
  repository: quay.io/external_storage/nfs-client-provisioner
  tag: v3.1.0-k8s1.11
  pullPolicy: IfNotPresent

nfs:
  server: 192.168.1.210
  path: /home/nfs
  mountOptions:

storageClass:
  create: true
  defaultClass: false
  name: nfs-client
  allowVolumeExpansion: true
  reclaimPolicy: Delete
  archiveOnDelete: true

rbac:
  create: true

podSecurityPolicy:
  enabled: false

執行命令："helm install stable/nfs-client-provisioner -n test-storageclass -f nfs-client.yaml"

• 創建PVC測試，創建test-pvc.yaml

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: testclaim
spec:
  storageClassName: "nfs-client"
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 10Mi

 

kubectl apply -f test-pvc.yaml

•  查看結果

[root@k8s-master home]# kubectl get sc
NAME         PROVISIONER                                              AGE
nfs-client   cluster.local/test-storageclass-nfs-client-provisioner   36m
[root@k8s-master home]# kubectl get pv,pvc
NAME                                                        CAPACITY   ACCESS MODES   RECLAIM POLICY   STATUS        CLAIM                 STORAGECLASS    REASON   AGE
persistentvolume/pvc-d9bdfa45-6417-4ad9-bbf0-02301f928342   10Mi       RWX            Delete           Bound         default/testclaim     nfs-client               33m

NAME                              STATUS   VOLUME                                     CAPACITY   ACCESS MODES   STORAGECLASS   AGE
persistentvolumeclaim/testclaim   Bound    pvc-d9bdfa45-6417-4ad9-bbf0-02301f928342   10Mi       RWX            nfs-client     34m