* 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
    * 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👇）

- Fixes the kubelet's ability to restart static pods (#105075, @rphillips) [SIG Node and Testing]
- Kube-proxy(ipvs mode) : delete stale conntrack UDP entries for loadbalancer ingress IP. (#105650, @VivekThrivikraman-est) [SIG Network]
- Release-note Removed error message label from kubelet_started_pods_errors_total metric (#105213, @yxxhero) [SIG Instrumentation and Node]

## Dependencies

configured Console port. MinIO uses the hostname or IP address specified in the request when building the redirect URL. The URL and port *must* be accessible by the client for the redirection to work. For deployments behind a load balancer, proxy, or ingress rule where the MinIO host IP address or port is not public, use the `MINIO_BROWSER_REDIRECT_URL` environment variable to specify the external hostname for the redirect. The LB/Proxy must have rules for directing traffic to the Console port specifically....

    * 2. A cluster can be dualstack (i.e. Pods and nodes carry dualstack IPs) but does not need to support ingress on dualstack. In this case the cluster can perform egress using `PodIPs` (according to family and binding selection in user code) but will ingress will only be performed against the pod primary IP. This can be configured by supplying single entry to `--service-cluster-ip-range` flag.

- Changed how the API server handles updates to `.spec.defaultBackend` of Ingress objects.

                              rule: duration(self) >= duration('1ms')
                        type: object
                    type: object
                type: object
              ingress:
                description: Ingress specifies the configuration of the sidecar for
                  processing inbound traffic to the attached workload instance.
                items:
                  properties:

- Fixed issue with `Winkernel Proxier` - No ingress load balancer rules with endpoints to support load balancing when all the endpoints are terminating. ([#113776](https://github.com/kubernetes/kubernetes/pull/113776), [@princepereira](https://github.com/princepereira))

* Option to enable http2 on client connections. ([#25280](https://github.com/kubernetes/kubernetes/pull/25280), [@timothysc](https://github.com/timothysc))
* kubectl get ingress output remove rules ([#26684](https://github.com/kubernetes/kubernetes/pull/26684), [@AdoHe](https://github.com/AdoHe))

- Cloud providers can set service account names for cloud controllers. ([#103178](https://github.com/kubernetes/kubernetes/pull/103178), [@nckturner](https://github.com/nckturner))
- Display Labels when kubectl describe ingress. ([#103894](https://github.com/kubernetes/kubernetes/pull/103894), [@kabab](https://github.com/kabab))

- Update the latest validated version of Docker to 19.03 ([#84476](https://github.com/kubernetes/kubernetes/pull/84476), [@neolit123](https://github.com/neolit123))
- Update to Ingress-GCE v1.6.1 ([#84018](https://github.com/kubernetes/kubernetes/pull/84018), [@rramkumar1](https://github.com/rramkumar1))