- Configures required iptables, sockets, and packet routing miscellanea within the `ztunnel` and application pod network namespaces to make that happen.

This component accomplishes that in the following ways:

}

func forEachInpodMarkIPRule(cfg *Config, f func(*netlink.Rule) error) error {
	var rules []*netlink.Rule
	families := []int{unix.AF_INET}
	if cfg.EnableInboundIPv6 {
		families = append(families, unix.AF_INET6)
	}
	for _, family := range families {
		// Equiv:
		// ip rule add fwmark 0x111/0xfff pref 32764 lookup 100
		//
		// Adds in-pod rules for marking packets with the istio-specific TPROXY mark.

    # mapped to network1. The gateway for this network example is specified by its public IP
    # address and port.
    # The second network, `network2`, in this example is defined differently with all endpoints
    # retrieved through the specified Multi-Cluster registry being mapped to network2. The

func containers(pod *v1.Pod) []v1.Container {
	res := make([]v1.Container, 0, len(pod.Spec.Containers)+len(pod.Spec.InitContainers))
	res = append(res, pod.Spec.InitContainers...)
	res = append(res, pod.Spec.Containers...)
	return res
}

func (pi PodInfo) String() string {
	var b strings.Builder
	b.WriteString(fmt.Sprintf("  Containers: %v\n", sets.SortedList(pi.Containers)))

	conn, err := connect(f)
	if err != nil {
		t.Fatalf("failed to connect %v", err)
	}
	conn.Close()
}

func connect(socket string) (*grpc.ClientConn, error) {
	var opts []grpc.DialOption

	opts = append(opts, grpc.WithTransportCredentials(insecure.NewCredentials()), grpc.WithContextDialer(func(ctx context.Context, addr string) (net.Conn, error) {
		var d net.Dialer
		return d.DialContext(ctx, "unix", socket)
	}))

		secret, err := parseDynamicSecret(warmingSecret, "WARMING")
		if err != nil {
			return nil, fmt.Errorf("failed building warming secret %s: %v",
				warmingSecret.Name, err)
		}
		proxySecretItems = append(proxySecretItems, secret)
	}
	for _, activeSecret := range secretConfigDump.DynamicActiveSecrets {
		secret, err := parseDynamicSecret(activeSecret, "ACTIVE")
		if err != nil {

      targetPort: 8080
      name: http2
    - port: 443
      targetPort: 8443
      name: https
    - port: 31400
      targetPort: 31400
      name: tcp
      # This is the port where sni routing happens
    - port: 15443
      targetPort: 15443
      name: tls
    resources:
      requests:
        cpu: 10m

}

func (w *Wrapper) getSections(sectionTypeURL configTypeURL) ([]*anypb.Any, error) {
	var dumpAny []*anypb.Any
	for _, conf := range w.Configs {
		if conf.TypeUrl == string(sectionTypeURL) {
			dumpAny = append(dumpAny, conf)
		}
	}
	if dumpAny == nil {
		return nil, fmt.Errorf("config dump has no configuration type %s", sectionTypeURL)
	}

	return dumpAny, nil

		c := &core.TypedExtensionConfig{}
		err := config.GetEcdsFilter().UnmarshalTo(c)
		if err != nil {
			return nil, fmt.Errorf("failed to retrieve TypedExtensionConfig: %v", err)
		}

		ecds = append(ecds, c)
	}

	sort.Slice(ecds, func(i, j int) bool {
		if ecds[i].GetTypedConfig().GetTypeUrl() == ecds[j].GetTypedConfig().GetTypeUrl() {
			return ecds[i].GetName() < ecds[j].GetName()
		}

		// If a listener was reloaded, it would contain both the active and draining state
		// delete the draining state for proper comparison
		l.DrainingState = nil
		if l.ActiveState != nil {
			dal = append(dal, l)
		}
	}

	// Support v2 or v3 in config dump. See ads.go:RequestedTypes for more info.
	for i := range dal {
		dal[i].ActiveState.Listener.TypeUrl = v3.ListenerType
	}
	sort.Slice(dal, func(i, j int) bool {