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 {

	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:

	}

	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{

type mtlsChecker struct {
	push            *model.PushContext
	svcPort         int
	destinationRule *networkingapi.ClientTLSSettings_TLSmode
}

func newMtlsChecker(push *model.PushContext, svcPort int, dr *config.Config, subset string) *mtlsChecker {
	return &mtlsChecker{
		push:            push,
		svcPort:         svcPort,
		destinationRule: tlsModeForDestinationRule(dr, subset, svcPort),
	}
}

apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: tunnel-outbound-traffic-to-external-svc-via-external-forward-proxy
spec:
  host: external-forward-proxy.{{ .externalNamespace }}.svc.cluster.local
  subsets:
  - name: external-svc-tcp
    trafficPolicy:
      tunnel:
        targetHost: external.{{ .externalNamespace }}
        targetPort: {{ .externalSvcTcpPort }}
  - name: external-svc-tls
    trafficPolicy:

func (ps *PushContext) mergeDestinationRule(p *consolidatedDestRules, destRuleConfig config.Config, exportToSet sets.Set[visibility.Instance]) {
	rule := destRuleConfig.Spec.(*networking.DestinationRule)
	resolvedHost := host.Name(rule.Host)

	var destRules map[host.Name][]*ConsolidatedDestRule

	if resolvedHost.IsWildCarded() {
		destRules = p.wildcardDestRules
	} else {
		destRules = p.specificDestRules

		return gvk.DaemonSet, true
	case *k8sioapiappsv1.Deployment:
		return gvk.Deployment, true
	case *istioioapinetworkingv1alpha3.DestinationRule:
		return gvk.DestinationRule, true
	case *apiistioioapinetworkingv1alpha3.DestinationRule:
		return gvk.DestinationRule, true
	case *k8sioapidiscoveryv1.EndpointSlice:
		return gvk.EndpointSlice, true
	case *k8sioapicorev1.Endpoints:
		return gvk.Endpoints, true

	if b.svc == nil || b.port == nil {
		return nil
	}

	// resolve policy from context
	destinationRule := corexds.CastDestinationRule(b.node.SidecarScope.DestinationRule(
		model.TrafficDirectionOutbound, b.node, b.svc.Hostname).GetRule())
	trafficPolicy, _ := util.GetPortLevelTrafficPolicy(destinationRule.GetTrafficPolicy(), b.port)

	// setup default cluster
	b.applyTrafficPolicy(defaultCluster, trafficPolicy)

apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: passthrough
  annotations:
    test-suite: automtls-passthrough
spec:
  host: "*"
  trafficPolicy:
    loadBalancer:

func TestUpdateExistingContents(t *testing.T) {
	g := NewWithT(t)
	src := NewKubeSource(collections.Istio)

	applyAndValidate := func(version string) {
		configTemplate := `apiVersion: networking.istio.io/v1beta1
kind: DestinationRule
metadata:
  name: productpage
  labels:
    version: %s
spec:
  host: productpage
  trafficPolicy:
    tls:
      mode: ISTIO_MUTUAL
  subsets:
  - name: %s
    labels:
      version: %s`