- 请检查是否修改了 PVC 的大小。
升级过程中，请尽量不要修改 PVC 的大小。可以先通过 kubectl get pvc -n kubesphere-devops-system 查看 pv 大小，填入升级参数中。如果必须修改，请继续。
- 请检查 SC 是否支持动态扩容
这里的 local 需要替换为默认的 SC 或者指定的 SC 名。
kubectl describe sc local
Name: local
IsDefaultClass: Yes
Annotations: cas.openebs.io/config=- name: StorageType
value: "hostpath"
- name: BasePath
value: "/var/openebs/local/"
,kubectl.kubernetes.io/last-applied-configuration={"apiVersion":"storage.k8s.io/v1","kind":"StorageClass","metadata":{"annotations":{"cas.openebs.io/config":"- name: StorageType\n value: \"hostpath\"\n- name: BasePath\n value: \"/var/openebs/local/\"\n","openebs.io/cas-type":"local","storageclass.beta.kubernetes.io/is-default-class":"true","storageclass.kubesphere.io/supported-access-modes":"[\"ReadWriteOnce\"]"},"name":"local"},"provisioner":"openebs.io/local","reclaimPolicy":"Delete","volumeBindingMode":"WaitForFirstConsumer"}
,openebs.io/cas-type=local,storageclass.beta.kubernetes.io/is-default-class=true,storageclass.kubesphere.io/support-snapshot=false,storageclass.kubesphere.io/supported-access-modes=["ReadWriteOnce"]
Provisioner: openebs.io/local
Parameters: <none>
AllowVolumeExpansion: <unset>
MountOptions: <none>
ReclaimPolicy: Delete
VolumeBindingMode: WaitForFirstConsumer
Events: <none>
AllowVolumeExpansion 参数设置时，才能动态扩容。否则，会导致扩容失败，升级失败。
补充：
The PersistentVolumeClaim "pvc1" is invalid: spec: Forbidden: is immutable after creation except resources.requests for bound claims
Error: UPGRADE FAILED: cannot patch "mysql" with kind PersistentVolumeClaim: persistentvolumeclaims "mysql" is forbidden: only dynamically provisioned pvc can be resized and the storageclass that provisions the pvc must support resize
