Jonh Wendell <******@****.***> 1694535031 -0400

  ITER_END=$((NUM_CLUSTERS-1))
  for i in $(seq 0 "$ITER_END"); do
    for j in $(seq 0 "$ITER_END"); do
      if [[ "${j}" -gt "${i}" ]]; then
        NETWORK_ID_I="${CLUSTER_NETWORK_ID[i]}"
        NETWORK_ID_J="${CLUSTER_NETWORK_ID[j]}"
        if [[ "$NETWORK_ID_I" == "$NETWORK_ID_J" ]]; then
          POD_TO_POD_AND_SERVICE_CONNECTIVITY=1
        else
          POD_TO_POD_AND_SERVICE_CONNECTIVITY=0
        fi

              "filter_chains": [
                {
                  "filters": [
                    {
                      "name": "envoy.filters.network.http_connection_manager",
                      "typed_config": {
                        "@type": "type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager",
                        "stat_prefix": "connect_terminate",
                        "route_config": {

// * use crictl to inspect the pod; this returns the bind-mounted network namespace file.
// * /var/lib/cni/results shows the outputs of CNI plugins; this containers the bind-mounted network namespace file.
//
// Instead, we traverse the procfs. Comments on this method are inline.
func getPodNetNs(pod *corev1.Pod) (string, error) {
	// First, find the network namespace id by looking the interface with the given Pod IP.

      # to properly label proxies
      clusterName: ""

    # Network defines the network this cluster belong to. This name
    # corresponds to the networks in the map of mesh networks.
    network: ""

    # Configure the certificate provider for control plane communication.
    # Currently, two providers are supported: "kubernetes" and "istiod".

		return cniConfig, nil
	}

	if len(template.cniNetworkConfig) > 0 {
		installLog.Infof("Using CNI config template from CNI_NETWORK_CONFIG environment variable.")
		return []byte(template.cniNetworkConfig), nil
	}

	return nil, fmt.Errorf("need CNI_NETWORK_CONFIG or CNI_NETWORK_CONFIG_FILE to be set")
}

func replaceCNIConfigVars(cniConfig []byte, vars cniConfigVars) []byte {
	cniConfigStr := string(cniConfig)

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

            "filter_chains": [
              {
                "filters": [
                  {
                    "name": "envoy.filters.network.http_connection_manager",
                    "typed_config": {
                      "@type": "type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager",
                      "stat_prefix": "agent",
                      "route_config": {

          value: "{{ valueOrDefault .Values.global.multiCluster.clusterName `Kubernetes` }}"
        {{- $network := valueOrDefault (index .InfrastructureLabels `topology.istio.io/network`) .Values.global.network }}
        {{- if $network }}
        - name: ISTIO_META_NETWORK
          value: "{{ $network }}"
        {{- end }}
        - name: ISTIO_META_INTERCEPTION_MODE
          value: REDIRECT

            "type_url": "type.googleapis.com/io.istio.network.authn.Config",
            "value": {
             "shared": true
            }
           }
          },
          {
           "name": "envoy.filters.network.http_connection_manager",
           "typed_config": {
            "@type": "type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager",