Merge pull request #46362 from sebgoa/examplesmove

Automatic merge from submit-queue

Redirect all files in /examples folder to kubernetes/examples repo

**What this PR does / why we need it**:

Examples are being moved to their own repository: https://github.com/kubernetes/examples

We need to remove them from the main repo , but first we need to keep a redirect.

This is a *big* organizational change, but nothing technical (aside from e2e tests)

**Which issue this PR fixes** 

fixes part of #24343 

**Special notes for your reviewer**:

WIP, I still need to figure out what to do with the BUILD script and tests, plus take care of the e2e tests that use some of these examples.

**release notes**
```release-note
Redirect all examples README to the the kubernetes/examples repo
```

Author: Kubernetes Submit Queue

examples/mysql-cinder-pd/README.md

@@ -1,51 +1 @@
-# MySQL installation with cinder volume plugin
-
-Cinder is a Block Storage service for OpenStack. This example shows how it can be used as an attachment mounted to a pod in Kubernets.
-
-### Prerequisites
-
-Start kubelet with cloud provider as openstack with a valid cloud config
-Sample cloud_config:
-
-```
-[Global]
-auth-url=https://os-identity.vip.foo.bar.com:5443/v2.0
-username=user
-password=pass
-region=region1
-tenant-id=0c331a1df18571594d49fe68asa4e
-```
-
-Currently the cinder volume plugin is designed to work only on linux hosts and offers ext4 and ext3 as supported fs types
-Make sure that kubelet host machine has the following executables
-
-```
-/bin/lsblk -- To Find out the fstype of the volume
-/sbin/mkfs.ext3 and /sbin/mkfs.ext4 -- To format the volume if required
-/usr/bin/udevadm -- To probe the volume attached so that a symlink is created under /dev/disk/by-id/ with a virtio- prefix
-```
-
-Ensure cinder is installed and configured properly in the region in which kubelet is spun up
-
-### Example
-
-Create a cinder volume Ex:
-
-`cinder create --display-name=test-repo 2`
-
-Use the id of the cinder volume created to create a pod [definition](mysql.yaml)
-Create a new pod with the definition
-
-`cluster/kubectl.sh create -f examples/mysql-cinder-pd/mysql.yaml`
-
-This should now
-
-1. Attach the specified volume to the kubelet's host machine
-2. Format the volume if required (only if the volume specified is not already formatted to the fstype specified)
-3. Mount it on the kubelet's host machine
-4. Spin up a container with this volume mounted to the path specified in the pod definition
-
-
-<!-- BEGIN MUNGE: GENERATED_ANALYTICS -->
-[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/examples/mysql-cinder-pd/README.md?pixel)]()
-<!-- END MUNGE: GENERATED_ANALYTICS -->
+This file has moved to [https://github.com/kubernetes/examples/blob/master/staging/mysql-cinder-pd/README.md](https://github.com/kubernetes/examples/blob/master/staging/mysql-cinder-pd/README.md)

examples/volumes/cinder/README.md

@@ -1,27 +1 @@
-This is a simple web server pod which serves HTML from an Cinder volume.
-
-Create a volume in the same tenant and zone as your node.
-
-Add your volume information in the pod description file cinder-web.yaml then create the pod:
-
-```shell
-  $ kubectl create -f examples/volumes/cinder/cinder-web.yaml
-```
-
-Add some data to the volume if is empty:
-
-```sh
-  $ echo  "Hello World" >& /var/lib/kubelet/plugins/kubernetes.io/cinder/mounts/{Volume ID}/index.html
-```
-
-You should now be able to query your web server:
-
-```sh
-  $ curl <Pod IP address>
-  $ Hello World
-```
-
-
-<!-- BEGIN MUNGE: GENERATED_ANALYTICS -->
-[![Analytics](https://kubernetes-site.appspot.com/UA-36037335-10/GitHub/examples/volumes/cinder/README.md?pixel)]()
-<!-- END MUNGE: GENERATED_ANALYTICS -->
+This file has moved to [https://github.com/kubernetes/examples/blob/master/staging/volumes/cinder/README.md](https://github.com/kubernetes/examples/blob/master/staging/volumes/cinder/README.md)