Automatic merge from submit-queue
Make ThirdPartyResource a root scoped object
ThirdPartyResource (the registration of a third party type) belongs at the cluster scope. It results in resource handlers installed in every namespace, and the same name in two namespaces collides (namespace is ignored when determining group/kind).
ThirdPartyResourceData (an actual instance of that type) is still namespace-scoped.
This PR moves ThirdPartyResource to be a root scope object. Someone previously using ThirdPartyResource definitions in alpha should be able to move them from namespace to root scope like this:
setup (run on 1.2):
```
kubectl create ns ns1
echo '{"kind":"ThirdPartyResource","apiVersion":"extensions/v1beta1","metadata":{"name":"foo.example.com"},"versions":[{"name":"v8"}]}' | kubectl create -f - --namespace=ns1
echo '{"kind":"Foo","apiVersion":"example.com/v8","metadata":{"name":"MyFoo"},"testkey":"testvalue"}' | kubectl create -f - --namespace=ns1
```
export:
```
kubectl get thirdpartyresource --all-namespaces -o yaml > tprs.yaml
```
remove namespaced kind registrations (this shouldn't remove the data of that type, which is another possible issue):
```
kubectl delete -f tprs.yaml
```
... upgrade ...
re-register the custom types at the root scope:
```
kubectl create -f tprs.yaml
```
Additionally, pre-1.3 clients that expect to read/write ThirdPartyResource at a namespace scope will not be compatible with 1.3+ servers, and 1.3+ clients that expect to read/write ThirdPartyResource at a root scope will not be compatible with pre-1.3 servers.
PLEASE NOTE: This document applies to the HEAD of the source tree
If you are using a released version of Kubernetes, you should refer to the docs that go with that version.
The latest release of this document can be found [here](http://releases.k8s.io/release-1.2/docs/README.md).Documentation for other releases can be found at releases.k8s.io.
Kubernetes Documentation: releases.k8s.io/HEAD
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The User's guide is for anyone who wants to run programs and services on an existing Kubernetes cluster.
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The Cluster Admin's guide is for anyone setting up a Kubernetes cluster or administering it.
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The Developer guide is for anyone wanting to write programs that access the Kubernetes API, write plugins or extensions, or modify the core code of Kubernetes.
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The Kubectl Command Line Interface is a detailed reference on the
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The API object documentation is a detailed description of all fields found in core API objects.
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An overview of the Design of Kubernetes
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There are example files and walkthroughs in the examples folder.
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If something went wrong, see the troubleshooting document for how to debug. You should also check the known issues for the release you're using.
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To report a security issue, see Reporting a Security Issue.