makeService(t, kube, service)
		xdsUpdater.WaitOrFail(t, "service")
		makePod(t, kube, pod)
		xdsUpdater.WaitOrFail(t, "proxy")
		newPod := pod.DeepCopy()
		newPod.Labels["newlabel"] = "new"
		makePod(t, kube, newPod)
		xdsUpdater.WaitOrFail(t, "proxy")
	})

	t.Run("Kubernetes only: headless pure HTTP service", func(t *testing.T) {
		_, kube, fx := setupTest(t)

// Instead, we must never require two different casings of a file path.
// Because we want the download cache to match the proxy protocol,
// and because we want the proxy protocol to be possible to serve
// from a tree of static files (which might be stored on a case-insensitive
// file system), the proxy protocol must never require two different casings
// of a URL path either.
//

//
// See convertServices() for the reverse conversion, used by Istio to handle ServiceEntry configs.
// See kube.ConvertService for the conversion from K8S to internal Service.
func ServiceToServiceEntry(svc *model.Service, proxy *model.Proxy) *config.Config {
	gvk := gvk.ServiceEntry
	se := &networking.ServiceEntry{
		// Host is fully qualified: name, namespace, domainSuffix
		Hosts: []string{string(svc.Hostname)},

以上述方式挂载子应用时，FastAPI 使用 ASGI 规范中的 `root_path` 机制处理挂载子应用路径之间的通信。

这样，子应用就可以为自动文档使用路径前缀。

并且子应用还可以再挂载子应用，一切都会正常运行，FastAPI 可以自动处理所有 `root_path`。

cpu_usage_seconds_total{pod=~\"istio-ingressgateway-.*\",container=\"istio-proxy\"}[1m]))","format":"time_series","intervalFactor":1,"legendFormat":"istio-ingressgateway","refId":"A"},{"datasource":{"type":"prometheus","uid":"${datasource}"},"expr":"sum(rate(container_cpu_usage_seconds_total{namespace!=\"istio-system\",container=\"istio-proxy\"}[1m]))","format":"time_series","intervalFactor":1,"legendFormat":"istio-proxy","refId":"B"}],"title":"vCPU","type":"timeseries"},{"collapsed":false,"data...

	// verbs is a list of supported API operation types (this includes
	// but is not limited to get, list, watch, create, update, patch,
	// delete, deletecollection, and proxy).
	// +listType=set
	Verbs []string `json:"verbs" protobuf:"bytes,5,opt,name=verbs"`
	// shortNames is a list of suggested short names of the resource.
	// +listType=set

[registry.k8s.io/kube-proxy:v1.25.16](https://console.cloud.google.com/gcr/images/k8s-artifacts-prod/us/kube-proxy) | [amd64](https://console.cloud.google.com/gcr/images/k8s-artifacts-prod/us/kube-proxy-amd64), [arm](https://console.cloud.google.com/gcr/images/k8s-artifacts-prod/us/kube-proxy-arm), [arm64](https://console.cloud.google.com/gcr/images/k8s-artifacts-prod/us/kube-proxy-arm64), [ppc64le](https://console.cloud.google.com/gcr/images/k8s-ar...

	"k8s.io/apimachinery/pkg/types"
	"k8s.io/apimachinery/pkg/util/dump"
	"k8s.io/apimachinery/pkg/util/sets"

	basemetrics "k8s.io/component-base/metrics"
	"k8s.io/kubernetes/pkg/proxy/metrics"
	proxyutil "k8s.io/kubernetes/pkg/proxy/util"
	testingclock "k8s.io/utils/clock/testing"
)

type fakeListener struct {
	openPorts sets.Set[string]
}

func newFakeListener() *fakeListener {
	return &fakeListener{

   *   <li>If a constructor or factory method takes a parameter whose type is interface, a dynamic
   *       proxy will be passed to the method. It's possible that the method body expects an
   *       instance method of the passed-in proxy to be of a certain value yet the proxy isn't aware
   *       of the assumption, in which case the equality check before and after serialization will
   *       fail.

	for _, sch := range collections.Pilot.All() {
		watches = append(watches, sch.GroupVersionKind().String())
	}
	return watches
}

func (f *FakeDiscoveryServer) ConnectUnstarted(p *model.Proxy, watch []string) *adsc.ADSC {
	f.t.Helper()
	p = f.SetupProxy(p)
	initialWatch := []*discovery.DiscoveryRequest{}
	for _, typeURL := range watch {