无法在Kubernetes中创建PersistentVolume

Question

我试图在Kubernet(版本1.14)中创建一个新的PersistentVolume，但是它返回了以下错误：

The PersistentVolume "postgres-pv-volume" is invalid:
* spec.persistentvolumesource: Forbidden: is immutable after creation
* nodeAffinity: Invalid value: "null": field is immutable

这是我的YAML：

apiVersion: v1
kind: PersistentVolume
metadata:
  name: postgres-pv-volume
  namespace: is-app
spec:
  capacity:
    storage: 5Gi
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Retain
  nfs:
    path: /vols/is-app
    server: storage-server
    readOnly: false

我在文档中找不到关于这些错误值的任何信息。我的配置怎么了？

Answer 1

使用NFS实现持久卷的示例配置

apiVersion: v1
kind: Service
metadata:
  name: nfs-server
spec:
  # clusterIP: 10.3.240.20
  ports:
    - name: nfs
      port: 2049
    - name: mountd
      port: 20048
    - name: rpcbind
      port: 111
  selector:
    role: nfs-server


apiVersion: v1
kind: PersistentVolume
metadata:
  name: nfs
spec:
  capacity:
    storage: 10Gi
  accessModes:
    - ReadWriteMany
  nfs:
    server: <ClusterIP>
    path: "/"

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

请参阅此处查看Kubernetes NFS持久性卷.