* kube-apiserver: requests to endpoints handled by unavailable extension API servers (as indicated by an `Available` condition of `false` in the registered APIService) now return `503` errors instead of `404` errors. ([#58070](https://github.com/kubernetes/kubernetes/pull/58070), [@weekface](https://github.com/weekface))

adow","getRootNode","root","ShadowRoot","parentNode","jQueryDetection","TypeError","version","fn","jquery","emulateTransitionEnd","duration","_this","this","called","one","setTimeout","event","special","bindType","delegateType","handle","target","is","handleObj","handler","apply","arguments","DATA_KEY","JQUERY_NO_CONFLICT","Alert","_element","close","rootElement","_getRootElement","_triggerCloseEvent","isDefaultPrevented","_removeElement","dispose","removeData","parent","closest","CLASS_NAME_ALE...

app = SomeASGIApp()

new_app = UnicornMiddleware(app, some_config="rainbow")
```

But FastAPI (actually Starlette) provides a simpler way to do it that makes sure that the internal middlewares handle server errors and custom exception handlers work properly.

For that, you use `app.add_middleware()` (as in the example for CORS).

```Python
from fastapi import FastAPI
from unicorn import UnicornMiddleware

app = FastAPI()

pperCase","findShadowRoot","documentElement","attachShadow","getRootNode","ShadowRoot","parentNode","root","jQueryDetection","TypeError","version","fn","jquery","emulateTransitionEnd","event","special","bindType","delegateType","handle","target","is","handleObj","handler","apply","arguments","NAME","DATA_KEY","EVENT_KEY","JQUERY_NO_CONFLICT","Event","CLOSE","CLOSED","CLICK_DATA_API","ClassName","Alert","_element","close","rootElement","_getRootElement","_triggerCloseEvent","isDefaultPrevented","...

o.default(this).one(d.TRANSITION_END,(function(){n=!0})),setTimeout((function(){n||d.triggerTransitionEnd(e)}),t),this},o.default.event.special[d.TRANSITION_END]={bindType:f,delegateType:f,handle:function(t){if(o.default(t.target).is(this))return t.handleObj.handler.apply(this,arguments)}};var c="bs.alert",h=o.default.fn.alert,g=function(){function t(t){this._element=t}var e=t.prototype;return e.close=function(t){var e=this._element;t&&(e=this._getRootElement(t)),this._triggerCloseEvent(e).isDefaultPrevented...

leverageNative","isSetup","saved","isTrigger","delegateType","stopPropagation","stopImmediatePropagation","preventDefault","trigger","isImmediatePropagationStopped","handleObjIn","eventHandle","events","t","handleObj","handlers","namespaces","origType","elemData","create","handle","triggered","dispatch","bindType","delegateCount","setup","mappedTypes","origCount","teardown","removeEvent","nativeEvent","handlerQueue","fix","delegateTarget","preDispatch","isPropagationStopped","currentTarget","rna...

In most cases, the same tool that is used to **run the program on startup** is also used to handle automatic **restarts**.

For example, this could be handled by:

* Docker
* Kubernetes
* Docker Compose
* Docker in Swarm Mode
* Systemd
* Supervisor
* Handled internally by a cloud provider as part of their services
* Others...

## Replication - Processes and Memory

* Re-add /healthz/ping handler in genericapiserver ([#38603](https://github.com/kubernetes/kubernetes/pull/38603), [@sttts](https://github.com/sttts))

### Other notable changes

## Changelog since v1.13.0-beta.2

### Other notable changes

* CVE-2018-1002105: Fix critical security issue in kube-apiserver upgrade request proxy handler ([#71411](https://github.com/kubernetes/kubernetes/issues/71411), [@liggitt](https://github.com/liggitt))