## Reference

### Design details

namespace "istio.io/rev=prod". The "prod" revision tag could point to "1-7-6" initially and then be changed to point to "1-8-1"
at some later point.

This allows operators to change which Istio control plane revision should handle injection for a namespace or set of namespaces
without manual relabeling of the "istio.io/rev" tag.
`,
		Args: func(cmd *cobra.Command, args []string) error {
			if len(args) != 0 {

      # JWT is intended for the CA.
      token:
        aud: istio-ca

    sts:
      # The service port used by Security Token Service (STS) server to handle token exchange requests.
      # Setting this port to a non-zero value enables STS server.
      servicePort: 0

    # The name of the CA for workload certificates.

## Configuration protocol

Ztunnel, of course, needs to be dynamically configured in order to make decisions on how it should handle traffic.
For this purpose, we chose to use xDS transport protocol due to our expertise and existing infrastructure, and because the protocol is well suited to our needs.

  // See https://github.com/kubernetes/apiserver/blob/master/pkg/authentication/user/user.go for some
  // well-known group names.
  // Required.
  optional string name = 1;
}

// LimitResponse defines how to handle requests that can not be executed right now.
// +union
message LimitResponse {
  // `type` is "Queue" or "Reject".
  // "Queue" means that requests that can not be executed upon arrival

  // See https://github.com/kubernetes/apiserver/blob/master/pkg/authentication/user/user.go for some
  // well-known group names.
  // Required.
  optional string name = 1;
}

// LimitResponse defines how to handle requests that can not be executed right now.
// +union
message LimitResponse {
  // `type` is "Queue" or "Reject".
  // "Queue" means that requests that can not be executed upon arrival

	s.currentPodSnapshot.Ensure(string(pod.UID))
	openNetns, err := s.getOrOpenNetns(pod, netNs)
	if err != nil {
		return err
	}

	// Handle node healthcheck probe rewrites
	err = addPodToHostNSIpset(pod, podIPs, &s.hostsideProbeIPSet)
	if err != nil {
		log.Errorf("failed to add pod to ipset: %s/%s %v", pod.Namespace, pod.Name, err)
		return err
	}

  // +optional
  optional string namespace = 5;
}

// IngressClassSpec provides information about the class of an Ingress.
message IngressClassSpec {
  // controller refers to the name of the controller that should handle this
  // class. This allows for different "flavors" that are controlled by the
  // same controller. For example, you may have different parameters for the
  // same implementing controller. This should be specified as a

  // +optional
  optional string namespace = 5;
}

// IngressClassSpec provides information about the class of an Ingress.
message IngressClassSpec {
  // controller refers to the name of the controller that should handle this
  // class. This allows for different "flavors" that are controlled by the
  // same controller. For example, you may have different parameters for the
  // same implementing controller. This should be specified as a

  // controller. If a Job is suspended after creation (i.e. the flag goes from
  // false to true), the Job controller will delete all active Pods associated
  // with this Job. Users must design their workload to gracefully handle this.
  // Suspending a Job will reset the StartTime field of the Job, effectively
  // resetting the ActiveDeadlineSeconds timer too. Defaults to false.
  //
  // +optional
  optional bool suspend = 10;
}