* subtype of {@code Network} that provides methods for adding and removing nodes and edges. If you
 * do not need to mutate a network (e.g. if you write a method than runs a read-only algorithm on
 * the network), you should use the non-mutating {@link Network} interface, or an {@link
 * ImmutableNetwork}.
 *
 * <p>You can create an immutable copy of an existing {@code Network} using {@link
 * ImmutableNetwork#copyOf(Network)}:

    # value.
    meshID: ""
    # Configure the mesh networks to be used by the Split Horizon EDS.
    #
    # The following example defines two networks with different endpoints association methods.
    # For `network1` all endpoints that their IP belongs to the provided CIDR range will be
    # mapped to network1. The gateway for this network example is specified by its public IP
    # address and port.

		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)

    # value.
    meshID: ""

    # Configure the mesh networks to be used by the Split Horizon EDS.
    #
    # The following example defines two networks with different endpoints association methods.
    # For `network1` all endpoints that their IP belongs to the provided CIDR range will be
    # mapped to network1. The gateway for this network example is specified by its public IP
    # address and port.

      # 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".

      # Enable envoy filter to translate `globalDomainSuffix` to cluster local suffix for cross cluster communication
      includeEnvoyFilter: true

    # 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".

  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

      value: "{{ or (index .ObjectMeta.Annotations `sidecar.istio.io/interceptionMode`) .ProxyConfig.InterceptionMode.String }}"
    {{- if .Values.global.network }}
    - name: ISTIO_META_NETWORK
      value: "{{ .Values.global.network }}"
    {{- end }}
    {{- if .DeploymentMeta.Name }}
    - name: ISTIO_META_WORKLOAD_NAME
      value: "{{ .DeploymentMeta.Name }}"
    {{ end }}

      value: "{{ or (index .ObjectMeta.Annotations `sidecar.istio.io/interceptionMode`) .ProxyConfig.InterceptionMode.String }}"
    {{- if .Values.global.network }}
    - name: ISTIO_META_NETWORK
      value: "{{ .Values.global.network }}"
    {{- end }}
    {{- if .DeploymentMeta.Name }}
    - name: ISTIO_META_WORKLOAD_NAME
      value: "{{ .DeploymentMeta.Name }}"
    {{ end }}

	// Not configurable in CNI helm charts
	registerStringParameter(constants.MountedCNINetDir, "/host/etc/cni/net.d", "Directory on the container where CNI networks are installed")
	registerStringParameter(constants.CNINetworkConfigFile, "", "CNI config template as a file")
	registerStringParameter(constants.KubeconfigFilename, "ZZZ-istio-cni-kubeconfig",