* Remove outdated net.experimental.kubernetes.io/proxy-mode and net.beta.kubernetes.io/proxy-mode annotations from kube-proxy. ([#40585](https://github.com/kubernetes/kubernetes/pull/40585), [@cblecker](https://github.com/cblecker))

- In clusters where the...

    ExecutionException e = assertThrows(ExecutionException.class, () -> chain.get());
    assertThat(e.getCause()).isInstanceOf(BadFutureRuntimeException.class);
  }

  /** Proxy to throw a {@link RuntimeException} out of the {@link #get()} method. */
  public static class BadFuture extends SimpleForwardingListenableFuture<Integer> {
    protected BadFuture(ListenableFuture<Integer> delegate) {

    ExecutionException e = assertThrows(ExecutionException.class, () -> chain.get());
    assertThat(e.getCause()).isInstanceOf(BadFutureRuntimeException.class);
  }

  /** Proxy to throw a {@link RuntimeException} out of the {@link #get()} method. */
  public static class BadFuture extends SimpleForwardingListenableFuture<Integer> {
    protected BadFuture(ListenableFuture<Integer> delegate) {

// connect happens.
func newClient(endpoint string) NetLocker {
	u, err := url.Parse(endpoint)
	if err != nil {
		panic(err)
	}

	tr := &http.Transport{
		Proxy:                 http.ProxyFromEnvironment,
		MaxIdleConnsPerHost:   1024,
		WriteBufferSize:       32 << 10, // 32KiB moving up from 4KiB default
		ReadBufferSize:        32 << 10, // 32KiB moving up from 4KiB default

import java.net.Socket

/**
 * The sockets and streams of an HTTP, HTTPS, or HTTPS+HTTP/2 connection. May be used for multiple
 * HTTP request/response exchanges. Connections may be direct to the origin server or via a proxy.
 *
 * Typically instances of this class are created, connected and exercised automatically by the HTTP
 * client. Applications may use this class to monitor HTTP connections as members of a
 * [connection pool][ConnectionPool].

## Let's Encrypt

Avant Let's Encrypt, ces certificats HTTPS étaient vendus par des tiers de confiance.

set FESS_JAVA_OPTS=%FESS_JAVA_OPTS% -Dhttp.maxConnections=20

REM Force the JVM to use IPv4 stack
if NOT "%FESS_USE_IPV4%" == "" (
set FESS_JAVA_OPTS=%FESS_JAVA_OPTS% -Djava.net.preferIPv4Stack=true
)

REM proxy
if NOT "%FESS_PROXY_HOST%" == "" (
set FESS_JAVA_OPTS=%FESS_JAVA_OPTS% -Dhttp.proxyHost=%FESS_PROXY_HOST%
set FESS_JAVA_OPTS=%FESS_JAVA_OPTS% -Dhttps.proxyHost=%FESS_PROXY_HOST%
)
if NOT "%FESS_PROXY_PORT%" == "" (

	if f.ErrorHandler != nil {
		revproxy.ErrorHandler = f.ErrorHandler
	}

	revproxy.ServeHTTP(w, outReq)
}

// customErrHandler is originally implemented to avoid having the following error
//
//	`http: proxy error: context canceled` printed by Golang
func (f *Forwarder) customErrHandler(w http.ResponseWriter, r *http.Request, err error) {
	if f.Logger != nil && err != context.Canceled {
		f.Logger(err)
	}

COPY ./app /code/app

CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "80"]

# If running behind a proxy like Nginx or Traefik add --proxy-headers
# CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "80", "--proxy-headers"]
```

</details>

## 什么是容器

容器（主要是 Linux 容器）是一种非常**轻量级**的打包应用程序的方式，其包括所有依赖项和必要的文件，同时它们可以和同一系统中的其他容器（或者其他应用程序/组件）相互隔离。