String PAGE_THUMBNAIL_PURGE_MAX_FETCH_SIZE = "page.thumbnail.purge.max.fetch.size";

    /** The key of the configuration. e.g. 1000 */
    String PAGE_SCORE_BOOSTER_MAX_FETCH_SIZE = "page.score.booster.max.fetch.size";

    /** The key of the configuration. e.g. 10000 */
    String PAGE_SEARCHLOG_MAX_FETCH_SIZE = "page.searchlog.max.fetch.size";

  // +optional
  optional AWSElasticBlockStoreVolumeSource awsElasticBlockStore = 2;

  // hostPath represents a directory on the host.
  // Provisioned by a developer or tester.
  // This is useful for single-node development and testing only!
  // On-host storage is not supported in any way and WILL NOT WORK in a multi-node cluster.

2) Alpha for CSI specification 0.3 integration to AWS EBS (Elastic Block Store)

* Allows HorizontalPodAutoscaler to use global metrics not associated with any Kubernetes object (for example metrics from a hoster service running outside of Kubernetes cluster). ([#60096](https://github.com/kubernetes/kubernetes/pull/60096), [@MaciekPytel](https://github.com/MaciekPytel))