// +optional
  optional bool serving = 2;

  // terminating indicates that this endpoint is terminating. A nil value
  // indicates an unknown state. Consumers should interpret this unknown state
  // to mean that the endpoint is not terminating.
  // +optional
  optional bool terminating = 3;
}

// EndpointHints provides hints describing how an endpoint should be consumed.
message EndpointHints {

  // that may be executing at a time --- for each such priority
  // level:
  //
  //             ACV(l) = ceil( SCL * ACS(l) / ( sum[priority levels k] ACS(k) ) )
  //
  // bigger numbers of ACS mean more reserved concurrent requests (at the
  // expense of every other PL).
  // This field has a default value of 30.
  // +optional
  optional int32 assuredConcurrencyShares = 1;

  // that may be executing at a time --- for each such priority
  // level:
  //
  //             ACV(l) = ceil( SCL * ACS(l) / ( sum[priority levels k] ACS(k) ) )
  //
  // bigger numbers of ACS mean more reserved concurrent requests (at the
  // expense of every other PL).
  // This field has a default value of 30.
  // +optional
  optional int32 assuredConcurrencyShares = 1;

automatically populated at runtime, using the same mechanism as [Sidecar Injection](istio.io/latest/docs/setup/additional-setup/sidecar-injection). This allows the same configurations and lifecycle to apply to gateways as sidecars. Note: this does mean that the namespace the gateway is deployed in must not have the `istio-injection=disabled` label. See [Controlling the injection policy](https://istio.io/latest/docs/setup/additional-setup/sidecar-injection/#controlling-the-injection-policy) for more...

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