// +optional
  optional string type = 1;

  // Rolling update config params. Present only if type = "RollingUpdate".
  // ---
  // TODO: Update this to follow our convention for oneOf, whatever we decide it
  // to be. Same as Deployment `strategy.rollingUpdate`.
  // See https://github.com/kubernetes/kubernetes/issues/35345
  // +optional
  optional RollingUpdateDaemonSet rollingUpdate = 2;
}

  // +optional
  optional string type = 1;

  // Rolling update config params. Present only if type = "RollingUpdate".
  // ---
  // TODO: Update this to follow our convention for oneOf, whatever we decide it
  // to be. Same as Deployment `strategy.rollingUpdate`.
  // See https://github.com/kubernetes/kubernetes/issues/35345
  // +optional
  optional RollingUpdateDaemonSet rollingUpdate = 2;
}

  // +optional
  optional string type = 1;

  // Rolling update config params. Present only if type = "RollingUpdate".
  // ---
  // TODO: Update this to follow our convention for oneOf, whatever we decide it
  // to be. Same as Deployment `strategy.rollingUpdate`.
  // See https://github.com/kubernetes/kubernetes/issues/35345
  // +optional
  optional RollingUpdateDaemonSet rollingUpdate = 2;
}

  // `matchingPrecedence` is used to choose among the FlowSchemas that match a given request. The chosen
  // FlowSchema is among those with the numerically lowest (which we take to be logically highest)
  // MatchingPrecedence.  Each MatchingPrecedence value must be ranged in [1,10000].
  // Note that if the precedence is not specified, it will be set to 1000 as default.
  // +optional

  // `matchingPrecedence` is used to choose among the FlowSchemas that match a given request. The chosen
  // FlowSchema is among those with the numerically lowest (which we take to be logically highest)
  // MatchingPrecedence.  Each MatchingPrecedence value must be ranged in [1,10000].
  // Note that if the precedence is not specified, it will be set to 1000 as default.
  // +optional

  // +optional
  optional string type = 1;

  // Rolling update config params. Present only if DeploymentStrategyType =
  // RollingUpdate.
  // ---
  // TODO: Update this to follow our convention for oneOf, whatever we decide it
  // to be.
  // +optional
  optional RollingUpdateDeployment rollingUpdate = 2;
}

// DEPRECATED.
message RollbackConfig {

  // `matchingPrecedence` is used to choose among the FlowSchemas that match a given request. The chosen
  // FlowSchema is among those with the numerically lowest (which we take to be logically highest)
  // MatchingPrecedence.  Each MatchingPrecedence value must be ranged in [1,10000].
  // Note that if the precedence is not specified, it will be set to 1000 as default.
  // +optional

  // `matchingPrecedence` is used to choose among the FlowSchemas that match a given request. The chosen
  // FlowSchema is among those with the numerically lowest (which we take to be logically highest)
  // MatchingPrecedence.  Each MatchingPrecedence value must be ranged in [1,10000].
  // Note that if the precedence is not specified, it will be set to 1000 as default.
  // +optional

  repeated VolumeAttachment items = 2;
}

// VolumeAttachmentSource represents a volume that should be attached.
// Right now only PersistenVolumes can be attached via external attacher,
// in future we may allow also inline volumes in pods.
// Exactly one member can be set.
message VolumeAttachmentSource {
  // persistentVolumeName represents the name of the persistent volume to attach.
  // +optional

  repeated VolumeAttachment items = 2;
}

// VolumeAttachmentSource represents a volume that should be attached.
// Right now only PersistenVolumes can be attached via external attacher,
// in future we may allow also inline volumes in pods.
// Exactly one member can be set.
message VolumeAttachmentSource {
  // persistentVolumeName represents the name of the persistent volume to attach.
  // +optional