optional string nodeID = 2;

  // topologyKeys is the list of keys supported by the driver.
  // When a driver is initialized on a cluster, it provides a set of topology
  // keys that it understands (e.g. "company.com/zone", "company.com/region").
  // When a driver is initialized on a node, it provides the same topology keys
  // along with values. Kubelet will expose these topology keys as labels
  // on its own node object.

  // listening on the default "0.0.0.0" address inside a container will be
  // accessible from the network.
  // Modifying this array with strategic merge patch may corrupt the data.
  // For more information See https://github.com/kubernetes/kubernetes/issues/108255.
  // Cannot be updated.
  // +optional
  // +patchMergeKey=containerPort
  // +patchStrategy=merge
  // +listType=map
  // +listMapKey=containerPort
  // +listMapKey=protocol