* GCI: fix kubectl permission issue [#27643](https://github.com/kubernetes/kubernetes/pull/27643) ([#27740](https://github.com/kubernetes/kubernetes/pull/27740), [@andyzheng0831](https://github.com/andyzheng0831))
* Add federation api and cm servers to hyperkube ([#27586](https://github.com/kubernetes/kubernetes/pull/27586), [@colhom](https://github.com/colhom))

Linux-Container werden mit demselben Linux-Kernel des Hosts (Maschine, virtuellen Maschine, Cloud-Servers, usw.) ausgeführt. Das bedeutet einfach, dass sie sehr leichtgewichtig sind (im Vergleich zu vollständigen virtuellen Maschinen, die ein gesamtes Betriebssystem emulieren).

by admission webhooks, custom resource conversion webhooks, and aggregated API servers must now include valid Subject Alternative Names. If you are running Kubernetes 1.22 with `GODEBUG=x509ignoreCN=0` set, check the `apiserver_kube_aggregator_x509_missing_san_total` and `apiserver_webhooks_x509_missing_san_total` metrics for non-zero values to see if the API server is connecting to webhooks or aggregated API servers using certificates that will be considered invalid in Kubernetes 1.23+.

##...

* Fix a string comparison bug in IPVS graceful termination where UDP real servers are not deleted. ([#78999](https://github.com/kubernetes/kubernetes/pull/78999), [@andrewsykim](https://github.com/andrewsykim))

     * @see jcifs.util.transport.Transport#acquire()
     */
    @Override
    public SmbTransportImpl acquire() {
        return (SmbTransportImpl) super.acquire();
    }

    /**
     * @return the server's encryption key
     */
    @Override
    public byte[] getServerEncryptionKey() {
        if (this.negotiated == null) {
            return null;
        }

* fix: detach azure disk issue using dangling error ([#81266](https://github.com/kubernetes/kubernetes/pull/81266), [@andyzhangx](https://github.com/andyzhangx))
* Fix a bug in the IPVS proxier where virtual servers are not cleaned up even though the corresponding Service object was deleted. ([#80942](https://github.com/kubernetes/kubernetes/pull/80942), [@gongguan](https://github.com/gongguan))

- Fixed a bug where an API group's path was not unregistered from the API server's root paths when the group was deleted. ([#121283](https://github.com/kubernetes/kubernetes/pull/121283), [@tnqn](https://github.com/tnqn)) [SIG API Machinery and Testing]

// disk failures are not returned.
func (z *erasureServerPools) deleteAll(ctx context.Context, bucket, prefix string) {
	for _, servers := range z.serverPools {
		for _, set := range servers.sets {
			set.deleteAll(ctx, bucket, prefix)
		}
	}
}

var listBucketsCache = cachevalue.New[[]BucketInfo]()

* Portworx Volume Plugin added enabling [Portworx](http://www.portworx.com) to be used as a storage provider for Kubernetes clusters. Portworx pools your servers capacity and turns your servers or cloud instances into converged, highly available compute and storage nodes. ([#39535](https://github.com/kubernetes/kubernetes/pull/39535), [@adityadani](https://github.com/adityadani))

- API server's deprecated `--experimental-encryption-provider-config` flag is now removed. Adapt your machinery to use the `--encryption-provider-config` flag that is available since v1.13. ([#108423](https://github.com/kubernetes/kubernetes/pull/108423), [@ialidzhikov](https://github.com/ialidzhikov))