// A null selector selects no pods.
  // An empty selector ({}) also selects no pods, which differs from standard behavior of selecting all pods.
  // In policy/v1, an empty selector will select all pods in the namespace.
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.LabelSelector selector = 2;

  // An eviction is allowed if at most "maxUnavailable" pods selected by

message NetworkPolicyPeer {
  // podSelector is a label selector which selects pods. This field follows standard label
  // selector semantics; if present but empty, it selects all pods.
  //
  // If namespaceSelector is also set, then the NetworkPolicyPeer as a whole selects
  // the pods matching podSelector in the Namespaces selected by NamespaceSelector.
  // Otherwise it selects the pods matching podSelector in the policy's own namespace.
  // +optional

  // resource metric across all relevant pods, as a raw value (instead of as
  // a percentage of the request), similar to the "pods" metric source type.
  // +optional
  optional k8s.io.apimachinery.pkg.api.resource.Quantity targetAverageValue = 3;

  // container is the name of the container in the pods of the scaling target
  optional string container = 4;
}

  //   * increase no more than 4 pods per 60 seconds
  //   * double the number of pods per 60 seconds
  // No stabilization is used.
  // +optional
  optional HPAScalingRules scaleUp = 1;

  // scaleDown is scaling policy for scaling Down.
  // If not set, the default value is to allow to scale down to minReplicas pods, with a
  // 300 second stabilization window (i.e., the highest recommendation for

  repeated string apiVersions = 2;

  // Resources is a list of resources this rule applies to.
  //
  // For example:
  // 'pods' means pods.
  // 'pods/log' means the log subresource of pods.
  // '*' means all resources, but not subresources.
  // 'pods/*' means all subresources of pods.
  // '*/scale' means all scale subresources.
  // '*/*' means all resources and their subresources.
  //

and set `networkPolicy.enabled` to `true`.

For Kubernetes v1.5 & v1.6, you must also turn on NetworkPolicy by setting
the DefaultDeny namespace annotation. Note: this will enforce policy for *all* pods in the namespace:

```
kubectl annotate namespace default "net.beta.kubernetes.io/network-policy={\"ingress\":{\"isolation\":\"DefaultDeny\"}}"
```

  // if a fstype is defined and the volume's access mode contains ReadWriteOnce.
  //
  // +optional
  optional string fsGroupPolicy = 5;

  // tokenRequests indicates the CSI driver needs pods' service account
  // tokens it is mounting volume for to do necessary authentication. Kubelet
  // will pass the tokens in VolumeContext in the CSI NodePublishVolume calls.

  // if a fstype is defined and the volume's access mode contains ReadWriteOnce.
  //
  // +optional
  optional string fsGroupPolicy = 5;

  // tokenRequests indicates the CSI driver needs pods' service account
  // tokens it is mounting volume for to do necessary authentication. Kubelet
  // will pass the tokens in VolumeContext in the CSI NodePublishVolume calls.

hpaSpec | [HorizontalPodAutoscaler](https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/)
podDisruptionBudget | [PodDisruptionBudget](https://kubernetes.io/docs/concepts/workloads/pods/disruptions/#how-disruption-budgets-work)
podAnnotations | [pod annotations](https://kubernetes.io/docs/concepts/overview/working-with-objects/annotations/)

## Redirection

As ztunnel aims to transparently encrypt and route users traffic, we need a mechanism to capture all traffic entering and leaving "mesh" pods.
This is a security critical task: if the ztunnel can be bypassed, authorization policies can be bypassed.

Redirection must meet these requirements: