// Ex. "ext4", "xfs". Implicitly inferred to be "ext4" if unspecified.
  optional string fsType = 2;

  // readOnly defaults to false (read/write). ReadOnly here will force
  // the ReadOnly setting in VolumeMounts.
  // +optional
  optional bool readOnly = 3;
}

// Preconditions must be fulfilled before an operation (update, delete, etc.) is carried out.

### Support for cgroups v2 Graduates to Stable

- [`KT-57780`](https://youtrack.jetbrains.com/issue/KT-57780) K2: Calling a constructor through a deprecated typealias doesn't report a deprecation
- [`KT-59110`](https://youtrack.jetbrains.com/issue/KT-59110) K2. "NotImplementedError: An operation is not implemented." error on incorrect `@Target` annotation
- [`KT-59249`](https://youtrack.jetbrains.com/issue/KT-59249) K2: Empty varargs are not serialized to KLIB

containers are only an alpha feature. To allow using CSI storage on Windows nodes, [CSIProxy](https://github.com/kubernetes-csi/csi-proxy) enables CSI node plugins to be deployed as unprivileged pods, using the proxy to perform privileged storage operations on the node.

Another feature moving to GA in v1.22 is CSI Service Account Token support. This feature allows CSI drivers to use pods' [bound service account tokens](https://kubernetes.io/docs/reference/access-authn-authz/service-ac...

- For raw block CSI volumes on Kubernetes, kubelet was incorrectly calling CSI NodeStageVolume for every single "map" (i.e. raw block "mount") operation for a volume already attached to the node. This PR ensures it is only called once per volume per node. ([#112403](https://github.com/kubernetes/kubernetes/pull/112403), [@akankshakumari393](https://github.com/akankshakumari393)) [SIG Storage]

- Fix: the volume is not detached after the pod and PVC objects are deleted ([#117358](https://github.com/kubernetes/kubernetes/pull/117358), [@cvvz](https://github.com/cvvz)) [SIG Storage]

    end
    dep ->> operation: Run dependency, e.g. DB session
    opt raise
        operation -->> dep: Raise HTTPException
        dep -->> handler: Auto forward exception
        handler -->> client: HTTP error response
        operation -->> dep: Raise other exception
        dep -->> handler: Auto forward exception
    end
    operation ->> client: Return response to client

 - Remove storage metrics `storage_operation_errors_total`, since we already have `storage_operation_status_count`.And add new field `status` for `storage_operation_duration_seconds`, so that we can know about all status storage operation latency. ([#98332](https://github.com/kubernetes/kubernetes/pull/98332), [@JornShen](https://github.com/JornShen)) [SIG Instrumentation and Storage]

- Number of errors reported to the metric `storage_operation_duration_seconds_count` for emptyDir decreased significantly because previously one error was reported for each projected volume created. ([#117022](https://github.com/kubernetes/kubernetes/pull/117022), [@mpatlasov](https://github.com/mpatlasov)) [SIG Storage]

  The incorrect cost was evident when the result of a function was used in subsequent operations. ([#119807](https://github.com/kubernetes/kubernetes/pull/119807), [@jpbetz](https://github.com/jpbetz)) [SIG API Machinery, Auth and Cloud Provider]