See the [XDS Evolution](https://docs.google.com/document/d/1V5wkeBHbLSLMzAMbwFlFZNHdZPyUEspG4lHbnB0UaCg/edit) document for more history and details.

The `Workload` aims to represent everything about a workload (generally a `Pod` or `WorkloadEntry`).

  // Template.
  optional StatefulSetUpdateStrategy updateStrategy = 7;

  // revisionHistoryLimit is the maximum number of revisions that will
  // be maintained in the StatefulSet's revision history. The revision history
  // consists of all revisions not represented by a currently applied
  // StatefulSetSpec version. The default value is 10.
  optional int32 revisionHistoryLimit = 8;

  // Template.
  optional StatefulSetUpdateStrategy updateStrategy = 7;

  // revisionHistoryLimit is the maximum number of revisions that will
  // be maintained in the StatefulSet's revision history. The revision history
  // consists of all revisions not represented by a currently applied
  // StatefulSetSpec version. The default value is 10.
  optional int32 revisionHistoryLimit = 8;

  // Template.
  optional StatefulSetUpdateStrategy updateStrategy = 7;

  // revisionHistoryLimit is the maximum number of revisions that will
  // be maintained in the StatefulSet's revision history. The revision history
  // consists of all revisions not represented by a currently applied
  // StatefulSetSpec version. The default value is 10.
  optional int32 revisionHistoryLimit = 8;

  // Populated by the system. It can be set only during the creation.
  // +optional
  optional int64 templateGeneration = 5;

  // The number of old history to retain to allow rollback.
  // This is a pointer to distinguish between explicit zero and not specified.
  // Defaults to 10.
  // +optional
  optional int32 revisionHistoryLimit = 6;
}