between services in the cluster and from a service to external
   services. The proxies form a _secure microservice mesh_ providing a rich
   set of functions like discovery, rich layer-7 routing, circuit breakers,
   policy enforcement and telemetry recording/reporting
   functions.

  > Note: The service mesh is not an overlay network. It
  > simplifies and enhances how microservices in an application talk to each

  optional int32 maxReplicas = 3;

  // targetCPUUtilizationPercentage is the target average CPU utilization (represented as a percentage of requested CPU) over all the pods;
  // if not specified the default autoscaling policy will be used.
  // +optional
  optional int32 targetCPUUtilizationPercentage = 4;
}

// current status of a horizontal pod autoscaler
message HorizontalPodAutoscalerStatus {