)

type ApplyFunc = func(tcpProxy *tcp.TcpProxy, destinationRule *networking.DestinationRule, subsetName string)

// Apply configures tunneling_config in a given TcpProxy depending on the destination rule and the destination hosts
var Apply ApplyFunc = func(tcpProxy *tcp.TcpProxy, destinationRule *networking.DestinationRule, subsetName string) {
	var tunnelSettings *networking.TrafficPolicy_TunnelSettings

						name            string
						destinationRule string
						expectSuccess   bool
					}{
						{
							name:            "connection fails when DR doesn't match SA",
							destinationRule: defaultIdentityDR,
							expectSuccess:   false,
						},
						{
							name:            "connection succeeds when DR matches SA",
							destinationRule: correctIdentityDR,
							expectSuccess:   true,

apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: productpage
spec:
  host: productpage
  subsets:
  - name: v1
    labels:
      version: v1
---
apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: reviews
spec:
  host: reviews
  subsets:
  - name: v1
    labels:
      version: v1
  - name: v2
    labels:
      version: v2
  - name: v3

			"testdata/destinationrule-mutual-destination.yaml",
		},
		analyzer: &destinationrule.CaCertificateAnalyzer{},
		expected: []message{
			{msg.NoServerCertificateVerificationDestinationLevel, "DestinationRule db-mtls"},
		},
	},
	{
		name: "destinationrule with no cacert, simple at portlevel",
		inputFiles: []string{
			"testdata/destinationrule-simple-port.yaml",
		},
		analyzer: &destinationrule.CaCertificateAnalyzer{},

	firstEntry := entry{
		key:            "key1",
		dependentTypes: []kind.Kind{kind.Service, kind.DestinationRule},
		dependentConfigs: []ConfigHash{
			ConfigKey{Kind: kind.Service, Name: "name", Namespace: "namespace"}.HashCode(),
			ConfigKey{Kind: kind.DestinationRule, Name: "name", Namespace: "namespace"}.HashCode(),
		},
	}

	c := newTypedXdsCache[uint64]()

	cache := c.(*lruCache[uint64])

	return h.Sum64()
}

func (t *clusterCache) DependentConfigs() []model.ConfigHash {
	drs := t.destinationRule.GetFrom()
	configs := make([]model.ConfigHash, 0, len(drs)+1+len(t.envoyFilterKeys))
	if t.destinationRule != nil {
		for _, dr := range drs {
			configs = append(configs, model.ConfigKey{Kind: kind.DestinationRule, Name: dr.Name, Namespace: dr.Namespace}.HashCode())
		}
	}
	if t.service != nil {

	cfg := proxy.SidecarScope.DestinationRule(model.TrafficDirectionInbound, proxy, instance.Service.Hostname).GetRule()
	if cfg != nil {
		destinationRule := CastDestinationRule(cfg)
		opts.isDrWithSelector = destinationRule.GetWorkloadSelector() != nil
		if destinationRule.TrafficPolicy != nil {
			opts.policy, _ = util.GetPortLevelTrafficPolicy(destinationRule.TrafficPolicy, instance.Port.ServicePort)

	case CustomResourceDefinition:
		return "CustomResourceDefinition"
	case DNSName:
		return "DNSName"
	case DaemonSet:
		return "DaemonSet"
	case Deployment:
		return "Deployment"
	case DestinationRule:
		return "DestinationRule"
	case EndpointSlice:
		return "EndpointSlice"
	case Endpoints:
		return "Endpoints"
	case EnvoyFilter:
		return "EnvoyFilter"
	case GRPCRoute:
		return "GRPCRoute"
	case Gateway:

										},
										Weight: 50,
									},
								},
							},
						},
					},
				},
				&v1alpha3.DestinationRule{
					ObjectMeta: metav1.ObjectMeta{
						Name:      "productpage",
						Namespace: "default",
					},
					Spec: v1alpha32.DestinationRule{
						Host: "productpage",
						Subsets: []*v1alpha32.Subset{
							{
								Name:   "v1",

	}

	return false
}

func initDestHostsAndSubsets(ctx analysis.Context) map[hostAndSubset]bool {
	hostsAndSubsets := make(map[hostAndSubset]bool)
	ctx.ForEach(gvk.DestinationRule, func(r *resource.Instance) bool {
		dr := r.Message.(*v1alpha3.DestinationRule)
		drNamespace := r.Metadata.FullName.Namespace

		for _, ss := range dr.GetSubsets() {
			hs := hostAndSubset{