{{- $res := tpl (print "{{" (repeat (split "." $dep | len) "(")  ".Values." (replace "." ")." $dep) ")}}") $}}
{{- if not (eq $res "")}}
{{fail (print $dep " is removed")}}
{{- end }}

  // +optional
  optional k8s.io.api.core.v1.ObjectReference targetRef = 4;

  // deprecatedTopology contains topology information part of the v1beta1
  // API. This field is deprecated, and will be removed when the v1beta1
  // API is removed (no sooner than kubernetes v1.24).  While this field can
  // hold values, it is not writable through the v1 API, and any attempts to
  // write to it will be silently ignored. Topology information can be found

  // * topology.kubernetes.io/region: the value indicates the region where the
  //   endpoint is located. This should match the corresponding node label.
  // This field is deprecated and will be removed in future api versions.
  // +optional
  map<string, string> topology = 5;

  // nodeName represents the name of the Node hosting this endpoint. This can
  // be used to determine endpoints local to a Node.
  // +optional

  // and the value is the time when the API server processed the eviction request. If
  // the deletion didn't occur and a pod is still there it will be removed from
  // the list automatically by PodDisruptionBudget controller after some time.
  // If everything goes smooth this map should be empty for the most of the time.

  // It must meet the same requirements as the name of a StorageClass
  // object (non-empty, DNS subdomain). If that object no longer exists,
  // the CSIStorageCapacity object is obsolete and should be removed by its
  // creator.
  // This field is immutable.
  optional string storageClassName = 3;

  // capacity is the value reported by the CSI driver in its GetCapacityResponse

  // Must be empty before the object is deleted from the registry. Each entry
  // is an identifier for the responsible component that will remove the entry
  // from the list. If the deletionTimestamp of the object is non-nil, entries
  // in this list can only be removed.
  // Finalizers may be processed and removed in any order.  Order is NOT enforced
  // because it introduces significant risk of stuck finalizers.

For various reasons outside the scope of this document, there is a desire to move from a sidecar based architecture to a "remote proxy" architecture.
However, this has one glaring issue: how do we get the traffic to the remote proxies, while maintaining the zero-trust properties that Istio is built upon?

A secondary goal was to enable a smoother on-ramp from "Zero" to "Getting some value".

  // `OrderedReady`, where pods are created in increasing order (pod-0, then
  // pod-1, etc) and the controller will wait until each pod is ready before
  // continuing. When scaling down, the pods are removed in the opposite order.
  // The alternative policy is `Parallel` which will create pods in parallel
  // to match the desired scale without waiting, and on scale down will delete
  // all pods at once.
  // +optional

// scheduling guarantees, and they will not be restarted when they exit or when a Pod is
// removed or restarted. The kubelet may evict a Pod if an ephemeral container causes the
// Pod to exceed its resource allocation.
//
// To add an ephemeral container, use the ephemeralcontainers subresource of an existing
// Pod. Ephemeral containers may not be removed or restarted.
message EphemeralContainer {

  // It must meet the same requirements as the name of a StorageClass
  // object (non-empty, DNS subdomain). If that object no longer exists,
  // the CSIStorageCapacity object is obsolete and should be removed by its
  // creator.
  // This field is immutable.
  optional string storageClassName = 3;

  // capacity is the value reported by the CSI driver in its GetCapacityResponse