必需值：在静态配置PV时必须指定卷类型

Question

尝试通过GCP SSD存储静态配置PV。错误消息如下：

The PersistentVolume "monitoring" is invalid: spec: Required value: must specify a volume type

重现步骤：

$ cat storage.yaml
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: ssd
provisioner: kubernetes.io/gce-pd
parameters:
  type: pd-ssd
reclaimPolicy: Retain


$ kubectl apply -f storage.yaml
storageclass.storage.k8s.io/ssd created


$ cat pv.yaml
apiVersion: v1
kind: PersistentVolume
metadata:
  name: monitoring
spec:
  storageClassName: ssd
  capacity:
    storage: 50Gi
  persistentVolumeReclaimPolicy: Retain
  accessModes:
    - ReadWriteOnce


$ kubectl apply -f pv.yaml
The PersistentVolume "monitoring" is invalid: spec: Required value: must specify a volume type

Kubernetes版本：

Client Version: version.Info{Major:"1", Minor:"14", GitVersion:"v1.14.1", GitCommit:"b7394102d6ef778017f2ca4046abbaa23b88c290", GitTreeState:"clean", BuildDate:"2019-04-08T17:11:31Z", GoVersion:"go1.12.1", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"12+", GitVersion:"v1.12.6-gke.10", GitCommit:"aaf0906400b5fc1d858ce0566a571e4f3ed06b9f", GitTreeState:"clean", BuildDate:"2019-03-30T19:30:48Z", GoVersion:"go1.10.8b4", Compiler:"gc", Platform:"linux/amd64"}

Answer 1

无需创建存储类，只需修改您的要求即可

看我的文件，这里添加了HostPath。

apiVersion: v1
kind: PersistentVolume
metadata:
  name: log-volume
  labels:
    type: local
spec:
  storageClassName: manual
  capacity:
    storage: 1Gi
  accessModes:
    - ReadWriteMany
  hostPath:
    path: "/opt/volume/nginx"

和 PVC 作为

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: log-claim
spec:
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 200Mi
  storageClassName: manual

Answer 2

如果使用预配器，通常不会自行创建PV。只需创建一个需要创建存储类的PVC，GKE便会为PV提供所需的存储大小和种类：

kind: PersistentVolumeClaim
apiVersion: v1
metadata:
  name: my-retain-ssd-storage
  namespace: default
spec:
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 50Gi
  storageClassName: ssd