* Some refactoring of error/status messages and functions to align with new approach.
* This PR will leverage subtests on the existing table tests for the scheduler units. ([#63661](https://github.com/kubernetes/kubernetes/pull/63661), [@xchapter7x](https://github.com/xchapter7x))
    * Some refactoring of error/status messages and functions to align with new approach.

The main milestones for SIG Network this release are the graduation of IPVS-based load balancing and CoreDNS to general availability.

IPVS is an alternative approach to in-cluster load balancing that uses in-kernel hash tables rather than the previous iptables approach, while CoreDNS is a replacement for kube-dns for service discovery.

### SIG Node

For the 1.8 release, SIG Multicluster focussed on expanding the set of
Kubernetes primitives that our Cluster Federation control plane
supports, expanding the number of approaches taken to multi-cluster
management (beyond our initial Federation approach), and preparing
to release Federation for general availability ('GA').

[SIG Multi-cluster]: https://github.com/kubernetes/community/tree/master/sig-federation

### SIG Node

      <match value="0x00001A0003100400" type="string" offset="0">
      </match>
    </magic>
    <glob pattern="*.123"/>
  </mime-type>

  <mime-type type="application/vnd.lotus-approach">
    <glob pattern="*.apr"/>
  </mime-type>
  <mime-type type="application/vnd.lotus-freelance">
    <glob pattern="*.pre"/>
  </mime-type>
  <mime-type type="application/vnd.lotus-notes">

 - `kubeadm`: a separate "super-admin.conf" file is now deployed. The User in `admin.conf` is now bound to a new RBAC Group `kubeadm:cluster-admins`...

    * request a client certificate from the API server during the boot cycle and pause
    * waiting for the request to be satisfied. It will continually refresh the certificate
    * as the certificates expiration approaches.

  // identifier of the apiserver.
  // +optional
  optional string audience = 1;

  // expirationSeconds is the requested duration of validity of the service
  // account token. As the token approaches expiration, the kubelet volume
  // plugin will proactively rotate the service account token. The kubelet will
  // start trying to rotate the token if the token is older than 80 percent of