* genericapiserver: cut off certificates api dependency ([#39947](https://github.com/kubernetes/kubernetes/pull/39947), [@sttts](https://github.com/sttts))
* genericapiserver: extract CA cert from server cert and SNI cert chains ([#39022](https://github.com/kubernetes/kubernetes/pull/39022), [@sttts](https://github.com/sttts))

- The CSR signing cert/key pairs will be reloaded from disk like the kube-apiserver cert/key pairs ([#86816](https://github.com/kubernetes/kubernetes/pull/86816), [@deads2k](https://github.com/deads2k)) [SIG API Machinery, Apps and Auth]

equality-based selector in 1.1).
  * Running against a secured etcd requires these flags to be passed to
kube-apiserver (instead of --etcd-config):
     * --etcd-certfile, --etcd-keyfile (if using client cert auth)
     * --etcd-cafile (if not using system roots)
  * As part of preparation in 1.2 for adding support for protocol buffers (and the
direct YAML support in the API available today), the Content-Type and Accept

* kubeadm: add back `--cert-dir` option for `kubeadm init phase certs sa` ([#73239](https://github.com/kubernetes/kubernetes/pull/73239), [@mattkelly](https://github.com/mattkelly))

    * 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
    * 証明書更新のためにCertbotのような外部コンポーネントを使用
* HAProxy
    * 証明書更新のためにCertbotのような外部コンポーネントを使用
* Nginx のような Ingress Controller を持つ Kubernetes
    * 証明書の更新に cert-manager のような外部コンポーネントを使用
* クラウド・プロバイダーがサービスの一部として内部的に処理（下記を参照👇）

もう1つの選択肢は、HTTPSのセットアップを含んだより多くの作業を行う**クラウド・サービス**を利用することです。 このサービスには制限があったり、料金が高くなったりする可能性があります。しかしその場合、TLS Termination Proxyを自分でセットアップする必要はないです。

    <glob pattern="*.webarchive"/>
  </mime-type>

  <mime-type type="application/x-x509-cert">
    <alias type="application/x-x509-ca-cert"/>
    <alias type="application/x-x509-user-cert"/>
    <glob pattern="*.crt"/>
  </mime-type>
  <mime-type type="application/x-x509-cert;format=pem">
    <sub-class-of type="application/x-x509-cert"/>
    <glob pattern="*.pem"/>
    <magic priority="50">

import java.net.SocketTimeoutException
import java.net.URI
import java.net.URLConnection
import java.net.UnknownHostException
import java.security.KeyStore
import java.security.cert.CertificateException
import java.security.cert.X509Certificate
import java.time.Duration
import java.util.Arrays
import java.util.EnumSet
import java.util.Locale
import java.util.concurrent.TimeUnit

"jobban", "kell", "kellett", "keresztül", "keressünk", "ki", "kívül", "között", "közül", "legalább", "lehet", "lehetett", "legyen", "lenne", "lenni", "lesz", "lett", "maga", "magát", "majd", "majd", "már", "más", "másik", "meg", "még", "mellett", "mert", "mely", "melyek", "mi", "mit", "míg", "miért", "milyen", "mikor", "minden", "mindent", "mindenki", "mindig", "mint", "mintha", "mivel", "most", "nagy", "nagyobb", "nagyon", "ne", "néha", "nekem", "neki", "nem", "néhány", "nélkül", "nincs", "olyan",...

"jobban", "kell", "kellett", "keresztül", "keressünk", "ki", "kívül", "között", "közül", "legalább", "lehet", "lehetett", "legyen", "lenne", "lenni", "lesz", "lett", "maga", "magát", "majd", "majd", "már", "más", "másik", "meg", "még", "mellett", "mert", "mely", "melyek", "mi", "mit", "míg", "miért", "milyen", "mikor", "minden", "mindent", "mindenki", "mindig", "mint", "mintha", "mivel", "most", "nagy", "nagyobb", "nagyon", "ne", "néha", "nekem", "neki", "nem", "néhány", "nélkül", "nincs", "olyan",...

pull/57902), [@kawych](https://github.com/kawych))

* On cluster provision or upgrade, kubeadm now generates certs and secures all connections to the etcd static-pod with mTLS. This includes the etcd serving cert, the etcd peer cert, and the apiserver etcd client cert. Flags and hostMounts are added to the etcd and apiserver static-pods to load these certs. For connections to etcd, https is now used in favor of http. ([#57415](https://github.com/kubernetes/kubernetes/pull/57415), [@s...