The ambient CNI agent is the only place where ambient network config and pod redirection machinery happens.

[unassigned open issue](https://github.com/istio/istio/issues?q=is%3Aissue+is%3Aopen+label%3Aarea%2Fenvironments%2Foperator+no%3Aassignee),
creating a [bug or feature request](../BUGS-AND-FEATURE-REQUESTS.md),
or just coming to the weekly [Environments Working Group](https://github.com/istio/community/blob/master/WORKING-GROUPS.md)
meeting to share your ideas.

A secondary goal was to enable a smoother on-ramp from "Zero" to "Getting some value".
Historically, Istio had to really be consumed all-or-nothing for things to work as expected.
In particular, an easy answer to "I just want to have mTLS everywhere, then I can think about adopting the rest of service mesh" was desired.

## Goals

Ztunnel should:

	return &dep.RealDependencies{
		CNIMode:          false, // we are in cni, but as we do the netns ourselves, we should keep this as false.
		NetworkNamespace: "",
	}
}

// Remove pod from mesh: pod is not deleted, we just want to remove it from the mesh.
func (s *NetServer) RemovePodFromMesh(ctx context.Context, pod *corev1.Pod) error {
	log := log.WithLabels("ns", pod.Namespace, "name", pod.Name)
	log.Debugf("Pod is now opt out... cleaning up.")

  // +optional
  optional string host = 1;

  // IngressRuleValue represents a rule to route requests for this IngressRule.
  // If unspecified, the rule defaults to a http catch-all. Whether that sends
  // just traffic matching the host to the default backend or all traffic to the
  // default backend, is left to the controller fulfilling the Ingress. Http is
  // currently the only supported IngressRuleValue.
  // +optional

# There are two use cases here:
# * Building all docker images (generally in CI). In this case we want to build everything at once, so they share work
# * Building a single docker image (generally during dev). In this case we just want to build the single binary alone
BUILD_ALL ?= true
define build-linux
.PHONY: $(TARGET_OUT_LINUX)/$(shell basename $(1))
ifeq ($(BUILD_ALL),true)
$(TARGET_OUT_LINUX)/$(shell basename $(1)): build-linux
	@:

	ns string, serviceAccount string, kubeClient kube.CLIClient, options Options,
) (map[string]*discovery.DiscoveryResponse, error) {
	// If Central Istiod case, just call it
	if ns == "" {
		ns = istioNamespace
	}
	if ns == istioNamespace {
		serviceAccount = tokenServiceAccount
	}
	if centralOpts.Xds != "" {

  // +optional
  optional string host = 1;

  // IngressRuleValue represents a rule to route requests for this IngressRule.
  // If unspecified, the rule defaults to a http catch-all. Whether that sends
  // just traffic matching the host to the default backend or all traffic to the
  // default backend, is left to the controller fulfilling the Ingress. Http is
  // currently the only supported IngressRuleValue.
  // +optional

		}
	}
	return fmt.Sprintf("Inline Route: %s", strings.Join(vhosts, "; "))
}

// If this is a route that matches everything and forwards to a cluster, just report the cluster.
func getMatchAllCluster(er *route.RouteConfiguration) string {
	if len(er.GetVirtualHosts()) != 1 {
		return ""
	}
	vh := er.GetVirtualHosts()[0]

      return 1
      ;;
  esac

  # If metrics server configuration directory is specified then deploy in
  # the cluster just created
  if [[ -n ${METRICS_SERVER_CONFIG_DIR:-} ]]; then
    retry kubectl apply -f "${METRICS_SERVER_CONFIG_DIR}"
  fi

  # Install Metallb if not set to install explicitly
  if [[ -z "${NOMETALBINSTALL}" ]]; then