String search_engine_HTTP_URL = "search_engine.http.url";

    /** The key of the configuration. e.g.  */
    String search_engine_HTTP_SSL_certificate_authorities = "search_engine.http.ssl.certificate_authorities";

    /** The key of the configuration. e.g.  */
    String search_engine_USERNAME = "search_engine.username";

    /** The key of the configuration. e.g.  */

  // sensitive information. If this is not provided, Login operation will fail.
  optional SecretReference secretRef = 3;

  // sslEnabled is the flag to enable/disable SSL communication with Gateway, default false
  // +optional
  optional bool sslEnabled = 4;

  // protectionDomain is the name of the ScaleIO Protection Domain for the configured storage.
  // +optional

* - Add PodSecurityPolicies for cluster addons ([#55509](https://github.com/kubernetes/kubernetes/pull/55509), [@tallclair](https://github.com/tallclair))
    * - Remove SSL cert HostPath volumes from heapster addons