// the replica count to be deleted.
  optional string whenScaled = 2;
}

// A StatefulSetSpec is the specification of a StatefulSet.
message StatefulSetSpec {
  // replicas is the desired number of replicas of the given Template.
  // These are replicas in the sense that they are instantiations of the
  // same Template, but individual replicas also have a consistent identity.

  // the replica count to be deleted.
  optional string whenScaled = 2;
}

// A StatefulSetSpec is the specification of a StatefulSet.
message StatefulSetSpec {
  // replicas is the desired number of replicas of the given Template.
  // These are replicas in the sense that they are instantiations of the
  // same Template, but individual replicas also have a consistent identity.

  # `minAvailable` or `maxUnavailable`. For example, to set the
  # minimum number of available replicas to 1, you can update this value as follows:
  #
  # podDisruptionBudget:
  #   minAvailable: 1
  #
  # Or, to allow a maximum of 1 unavailable replica, you can set:
  #
  # podDisruptionBudget:
  #   maxUnavailable: 1
  #

  // maxReplicas is the upper limit for the number of replicas to which the autoscaler can scale up.
  // It cannot be less that minReplicas.
  optional int32 maxReplicas = 3;

  // metrics contains the specifications for which to use to calculate the
  // desired replica count (the maximum replica count across all metrics will
  // be used).  The desired replica count is calculated multiplying the

  // maxReplicas is the upper limit for the number of replicas to which the autoscaler can scale up.
  // It cannot be less that minReplicas.
  optional int32 maxReplicas = 3;

  // metrics contains the specifications for which to use to calculate the
  // desired replica count (the maximum replica count across all metrics will
  // be used).  The desired replica count is calculated multiplying the

  optional int32 replicas = 1;

  // The number of pods that have labels matching the labels of the pod template of the replicaset.
  // +optional
  optional int32 fullyLabeledReplicas = 2;

  // The number of ready replicas for this replica set.
  // +optional
  optional int32 readyReplicas = 4;

  // The number of available replicas (ready for at least minReadySeconds) for this replica set.

  // the replica count to be deleted.
  optional string whenScaled = 2;
}

// A StatefulSetSpec is the specification of a StatefulSet.
message StatefulSetSpec {
  // replicas is the desired number of replicas of the given Template.
  // These are replicas in the sense that they are instantiations of the
  // same Template, but individual replicas also have a consistent identity.

- [readiness probes](https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-probes/)
- [replica count](https://kubernetes.io/docs/concepts/workloads/controllers/deployment/)
- [HorizontalPodAutoscaler](https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/)

  // maxReplicas is the upper limit for the number of replicas to which the autoscaler can scale up.
  // It cannot be less that minReplicas.
  optional int32 maxReplicas = 3;

  // metrics contains the specifications for which to use to calculate the
  // desired replica count (the maximum replica count across all metrics will
  // be used).  The desired replica count is calculated multiplying the

apiVersion: apps/v1
kind: Deployment
metadata:
  name: hello
spec:
  replicas: 7
  selector:
    matchLabels:
      app: hello
      tier: backend
      track: stable
  template:
    metadata:
      annotations:
        proxy.istio.io/config: '{ "holdApplicationUntilProxyStarts": true }'
      labels:
        app: hello
        tier: backend
        track: stable
    spec:
      containers:
        - name: hello