* Fix failing load balancers in Azure ([#40405](https://github.com/kubernetes/kubernetes/pull/40405), [@codablock](https://github.com/codablock))

            Optional comment line(s).

            Comment lines start with `:` in the SSE wire format and are ignored by
            `EventSource` clients. Useful for keep-alive pings to prevent
            proxy/load-balancer timeouts.
            """
        ),
    ] = None

    @model_validator(mode="after")
    def _check_data_exclusive(self) -> "ServerSentEvent":

  @Test
  public void addEdge_existingNodes() {
    assume().that(graphIsMutable()).isTrue();

    // Adding nodes initially for safety (insulating from possible future
    // modifications to proxy methods)
    addNode(N1);
    addNode(N2);
    assertThat(networkAsMutableNetwork.addEdge(N1, N2, E12)).isTrue();
    assertThat(network.edges()).contains(E12);

     * graphs, most other settings remain at their generic default value. Use the various setters to further configure
     * the session with authentication, mirror, proxy and other information required for your environment. At least,
     * local repository manager needs to be configured to make session be able to create session instance.
     *

  @Test
  public void addEdge_existingNodes() {
    assume().that(graphIsMutable()).isTrue();

    // Adding nodes initially for safety (insulating from possible future
    // modifications to proxy methods)
    addNode(N1);
    addNode(N2);
    assertThat(networkAsMutableNetwork.addEdge(N1, N2, E12)).isTrue();
    assertThat(network.edges()).contains(E12);

* Run l7 controller on master  ([#26048](https://github.com/kubernetes/kubernetes/pull/26048), [@bprashanth](https://github.com/bprashanth))
* AWS: ELB proxy protocol support via annotation service.beta.kubernetes.io/aws-load-balancer-proxy-protocol ([#24569](https://github.com/kubernetes/kubernetes/pull/24569), [@williamsandrew](https://github.com/williamsandrew))

      Header("if-unmodified-since", ""),
      Header("last-modified", ""),
      Header("link", ""),
      Header("location", ""),
      Header("max-forwards", ""),
      Header("proxy-authenticate", ""),
      Header("proxy-authorization", ""),
      Header("range", ""),
      Header("referer", ""),
      Header("refresh", ""),
      Header("retry-after", ""),
      Header("server", ""),

	}

	// For more details about various values used here refer
	// https://golang.org/pkg/net/http/#Transport documentation
	tr := &http.Transport{
		Proxy:                 http.ProxyFromEnvironment,
		DialContext:           dialContext,
		MaxIdleConnsPerHost:   maxIdleConnsPerHost,
		WriteBufferSize:       WriteBufferSize,
		ReadBufferSize:        ReadBufferSize,

## 安全性 - HTTPS { #security-https }

在[前一章關於 HTTPS](https.md) 中，我們學到 HTTPS 如何為你的 API 提供加密。

我們也看到，HTTPS 通常由應用伺服器外部的元件提供，即 TLS Termination Proxy。

而且必須有某個東西負責續期 HTTPS 憑證，可能是同一個元件，也可能是不同的東西。

### HTTPS 工具範例 { #example-tools-for-https }

你可以用來作為 TLS Termination Proxy 的工具包括：

- Traefik
    - 自動處理憑證續期 ✨
- Caddy
    - 自動處理憑證續期 ✨
- Nginx
    - 搭配像 Certbot 這類外部元件進行憑證續期
- HAProxy

        final String proxyPort = (String) paramMap.get(Param.Client.PROXY_PORT);
        if (StringUtil.isNotBlank(proxyHost) && StringUtil.isNotBlank(proxyPort)) {
            // proxy credentials
            if (paramMap.get(Param.Client.PROXY_USERNAME) != null && paramMap.get(Param.Client.PROXY_PASSWORD) != null) {
                paramMap.put(HcHttpClient.PROXY_CREDENTIALS_PROPERTY, new UsernamePasswordCredentials(