[前チャプターのHTTPSについて](https.md){.internal-link target=_blank}では、HTTPSがどのようにAPIを暗号化するのかについて学びました。

通常、アプリケーションサーバにとって**外部の**コンポーネントである**TLS Termination Proxy**によって提供されることが一般的です。このプロキシは通信の暗号化を担当します。

さらにセキュアな通信において、HTTPS証明書の定期的な更新を行いますが、これはTLS Termination Proxyと同じコンポーネントが担当することもあれば、別のコンポーネントが担当することもあります。

### HTTPS 用ツールの例
TLS Termination Proxyとして使用できるツールには以下のようなものがあります：

* Traefik
    * 証明書の更新を自動的に処理 ✨
* Caddy
    * 証明書の更新を自動的に処理 ✨
* Nginx

      - [Multi-platform](#multi-platform)
      - [Cloud Providers](#cloud-providers)
    - [Network](#network)
      - [network-policy](#network-policy)
      - [kube-proxy ipvs mode](#kube-proxy-ipvs-mode)
    - [API Machinery](#api-machinery)
      - [kube-apiserver](#kube-apiserver)
      - [Dynamic Admission Control](#dynamic-admission-control)

    proxy itself was a prior knowledge HTTP/2 server. With this update, OkHttp attempts a `CONNECT`
    tunnel just as it would with HTTPS. For prior knowledge with proxies OkHttp's is now consistent
    with these curl arguments:

    ```
    curl \
      --http2-prior-knowledge \
      --proxy localhost:8888 \
      --proxytunnel \
      http://squareup.com/robots.txt

import org.apache.maven.wagon.authorization.AuthorizationException;
import org.apache.maven.wagon.events.TransferListener;
import org.apache.maven.wagon.observers.ChecksumObserver;
import org.apache.maven.wagon.proxy.ProxyInfo;
import org.apache.maven.wagon.repository.Repository;
import org.codehaus.plexus.PlexusContainer;
import org.codehaus.plexus.component.repository.exception.ComponentLifecycleException;

    * [metatada-proxy addon] Bump prometheus-to-sd v0.5.0 to pick up security fixes.
* Node-Problem-Detector configuration is now decoupled from the Kubernetes release on GKE/GCE. ([#73288](https://github.com/kubernetes/kubernetes/pull/73288), [@wangzhen127](https://github.com/wangzhen127))

	github.com/google/s2a-go v0.1.9 // indirect
	github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510 // indirect
	github.com/googleapis/enterprise-certificate-proxy v0.3.6 // indirect
	github.com/googleapis/gax-go/v2 v2.14.1 // indirect
	github.com/gorilla/mux v1.8.1 // indirect
	github.com/gorilla/websocket v1.5.3 // indirect
	github.com/hashicorp/errwrap v1.1.0 // indirect

	public final fun getPort ()I
	public final fun getProtocolNegotiationEnabled ()Z
	public final fun getProtocols ()Ljava/util/List;
	public final fun getProxyAddress ()Ljava/net/Proxy;
	public final fun getRequestCount ()I
	public final fun getServerSocketFactory ()Ljavax/net/ServerSocketFactory;
	public final fun getSocketAddress ()Ljava/net/InetSocketAddress;
	public final fun getStarted ()Z

* kube-apiserver: the root /proxy paths have been removed (deprecated since v1.2). Use the /proxy subresources on objects that support HTTP proxying. ([#59884](https://github.com/kubernetes/kubernetes/pull/59884), [@mikedanese](https://github.com/mikedanese))

            factoryParamMap.put(HcHttpClient.REQUEST_HEADERS_PROPERTY,
                    rhList.toArray(new org.codelibs.fess.crawler.client.http.RequestHeader[rhList.size()]));
        }

        // proxy credentials
        final String proxyHost = paramMap.get(CRAWLER_WEB_PREFIX + "proxyHost");
        final String proxyPort = paramMap.get(CRAWLER_WEB_PREFIX + "proxyPort");

    /** Property key for bot-based purge configuration. */
    public static final String PURGE_BY_BOTS_PROPERTY = "purge.by.bots";

    /** Property key for search file proxy configuration. */
    public static final String SEARCH_FILE_PROXY_PROPERTY = "search.file.proxy";

    // ============================================================
    // Notification Property Keys
    // ============================================================