* Dynamic Provisioning of PersistentVolumes: Kubernetes previously required all
volumes to be manually provisioned by a cluster administrator before use. With
this feature, volume plugins that support it (GCE PD, AWS EBS, and Cinder) can
automatically provision a PersistentVolume to bind to an unfulfilled
PersistentVolumeClaim.
  * Run multiple schedulers in parallel, e.g. one or more custom schedulers

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            "type": "string"
          },
          "readOnly": {
            "description": "readOnly is Optional: Defaults to false (read/write). ReadOnly here will force the ReadOnly setting in VolumeMounts. More info: https://examples.k8s.io/mysql-cinder-pd/README.md",
            "type": "boolean"
          },
          "secretRef": {

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            "type": "string"
          },
          "readOnly": {
            "description": "readOnly defaults to false (read/write). ReadOnly here will force the ReadOnly setting in VolumeMounts. More info: https://examples.k8s.io/mysql-cinder-pd/README.md",
            "type": "boolean"
          },
          "secretRef": {

func (pc pingConn) Ping(ctx context.Context) error {
	if pc.driver.fails {
		return pingError
	}
	return nil
}

var _ driver.Pinger = pingConn{}

func (pd *pingDriver) Open(name string) (driver.Conn, error) {
	return pingConn{driver: pd}, nil
}

func TestPing(t *testing.T) {
	driver := &pingDriver{}
	Register("ping", driver)

	db, err := Open("ping", "ignored")
	if err != nil {

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	node1Zone2    = makeNode("node1").withLabel("topology.gke.io/zone", "us-east-2").Node

	// csiNode objects
	csiNode1Migrated    = makeCSINode("node1", "kubernetes.io/gce-pd")
	csiNode1NotMigrated = makeCSINode("node1", "")

	// node topology
	nodeLabelKey   = "nodeKey"
	nodeLabelValue = "node1"

	// node topology for CSI migration

* attachdetach controller attaches volumes immediately when Pod's PVCs are bound ([#66863](https://github.com/kubernetes/kubernetes/pull/66863), [@cofyc](https://github.com/cofyc))
* This fix prevents a GCE PD volume from being mounted if the udev device link is stale and tries to correct the link. ([#66832](https://github.com/kubernetes/kubernetes/pull/66832), [@msau42](https://github.com/msau42))

 - Newly provisioned PVs by gce-pd will no longer have the beta FailureDomain label. gce-pd volume plugin will start to have GA topology label instead. ([#98700](https://github.com/kubernetes/kubernetes/pull/98700), [@Jiawei0227](https://github.com/Jiawei0227)) [SIG Cloud Provider, Storage and Testing]