sion/custom-resources/) and [Migrate a ThirdPartyResource to CustomResourceDefinition](https://kubernetes.io/docs/tasks/access-kubernetes-api/migrate-third-party-resource/).

* [beta] User-provided apiservers can be aggregated (served along with) the rest of the Kubernetes API. See [Extending the Kubernetes API with the aggregation layer](https://kubernetes.io/docs/concepts/api-extension/apiserver-aggregation/), [Configure the aggregation layer](https://kubernetes.io/docs/tasks/acces...

### Deploy a more secure control plane with kubeadm

sent values have been received, receive operations will return
the zero value for the channel's type without blocking.
The multi-valued <a href="#Receive_operator">receive operation</a>
returns a received value along with an indication of whether the channel is closed.
</p>


<h3 id="Complex_numbers">Manipulating complex numbers</h3>

<p>
Three functions assemble and disassemble complex numbers.

- Kubelet command line flags related to dockershim are now showing deprecation message as they will be removed along with dockershim in future release. ([#98730](https://github.com/kubernetes/kubernetes/pull/98730), [@dims](https://github.com/dims))

- `kubectl run` has removed the previously deprecated generators, along with flags unrelated to creating pods. `kubectl run` now only creates pods. See specific `kubectl create` subcommands to create objects other than pods. 

- Enforce nodeName cannot be set along with non-empty schedulingGates ([#115636](https://github.com/kubernetes/kubernetes/pull/115636), [@Huang-Wei](https://github.com/Huang-Wei)) [SIG Apps and Scheduling]

#### CustomResourceDefinition OpenAPI Publishing

OpenAPI specs for native types have long been served at /openapi/v2, and they are consumed by a number of components, notably kubectl client-side validation, kubectl explain and OpenAPI based client generators.

With Kubernetes 1.15 as beta, OpenAPI schemas are also published for CRDs, as long as their schemas are structural.

  - labels/annotations that are consumed by any cloud specific controllers

In addition to the above, SIG Cloud Provider has been focusing on a long running effort to remove cloud provider code from kubernetes/kubernetes.

### SIG-cluster-lifecycle

    String INDEX_ADMIN_INTEGER_FIELDS = "index.admin.integer.fields";

    /** The key of the configuration. e.g. content_length,favorite_count,click_count */
    String INDEX_ADMIN_LONG_FIELDS = "index.admin.long.fields";

    /** The key of the configuration. e.g. boost */
    String INDEX_ADMIN_FLOAT_FIELDS = "index.admin.float.fields";

    /** The key of the configuration. e.g.  */

- No-op and GC related updates to cluster trust...