#### TLS Bootstrapping
* [alpha] Rotation of the server TLS certificate on the kubelet. See [TLS bootstrapping - approval controller](https://kubernetes.io/docs/admin/kubelet-tls-bootstrapping/#approval-controller).

* [alpha] Rotation of the client TLS certificate on the kubelet. See [TLS bootstrapping - kubelet configuration](https://kubernetes.io/docs/admin/kubelet-tls-bootstrapping/#kubelet-configuration).

metal tooling and production-ready user stories, such as the high availability use cases have been given priority for 1.15.

kubeadm, the cluster lifecycle building block, continues to receive features and stability work required for bootstrapping production clusters efficiently. kubeadm has promoted high availability (HA) capability to beta, allowing users to use the familiar `kubeadm init` and `kubeadm join` commands to [configure and deploy an HA control plane](https://kubernetes.io/...

Other notable changes include:
* CoreDNS replaces kube-dns as the default DNS provider

This section contains a list of known issues reported in Kubernetes 1.8 release. The content is populated via [v1.8.x known issues and FAQ accumulator](https://github.com/kubernetes/kubernetes/issues/53004).

- Kubeadm increased to 5 minutes its timeout for the TLS bootstrapping process to complete upon join ([#89735](https://github.com/kubernetes/kubernetes/pull/89735), [@rosti](https://github.com/rosti)) [SIG Cluster Lifecycle]
- hyperkube: Use debian-hyperkube-base@v1.1.0 image
  

- Kubeadm increased to 5 minutes its timeout for the TLS bootstrapping process to complete upon join ([#89735](https://github.com/kubernetes/kubernetes/pull/89735), [@rosti](https://github.com/rosti)) [SIG Cluster Lifecycle]
- hyperkube: Use debian-hyperkube-base@v1.1.0 image
  

* Fix in vSphere Cloud Provider to report disk is detach when VM is not found. ([#62220](https://github.com/kubernetes/kubernetes/pull/62220), [@abrarshivani](https://github.com/abrarshivani))
* corrects a race condition in bootstrapping aggregated cluster roles in new HA clusters ([#63761](https://github.com/kubernetes/kubernetes/pull/63761), [@liggitt](https://github.com/liggitt))

* Added a new secret type "bootstrap.kubernetes.io/token" for dynamically creating TLS bootstrapping bearer tokens. ([#41281](https://github.com/kubernetes/kubernetes/pull/41281), [@ericchiang](https://github.com/ericchiang))

### Service

			log.Printf("run time panic: %v", x)
		}
	}()
	log.Println("start")
	g()
}
</pre>


<h3 id="Bootstrapping">Bootstrapping</h3>

<p>
Current implementations provide several built-in functions useful during
bootstrapping. These functions are documented for completeness but are not
guaranteed to stay in the language. They do not return a result.
</p>

- Kubectl create job command has been added. ([#60316](https://github.com/kubernetes/kubernetes/pull/60316), [@soltysh](https://github.com/soltysh)) Courtesy of SIG CLI
- Kubelet serving certificate bootstrapping and rotation has been promoted to beta status. ([#66726](https://github.com/kubernetes/kubernetes/pull/66726), [@liggitt](https://github.com/liggitt)) Courtesy of SIG Auth, and SIG Node