Add full example for kubernetes.io/cinder provisioner

[kiwik]

What this PR does / why we need it:
Add kubernetes.io/cinder example, make it easy for beginner to understand the difference with openstack.org/standalone-cinder provisioner.

Which issue this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged):
fixes #62

Special notes for your reviewer:
NA

Release note:
NA

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[kiwik]

Have signed CLA.

[kiwik]

/assign @hogepodge

[kiwik]

/assign @dims

[kiwik]

/ok-to-test

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/ok-to-test

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[zetaab]

I am not fully sure is this really needed? We have similar example there already if people can combine two files

[kiwik]

@zetaab you mean "cinder-storage-class.yaml" and "example-pod.yaml"? looks there is no PVC define.

[zetaab]

https://github.com/kubernetes/cloud-provider-openstack/blob/master/examples/persistent-volume-provisioning/cinder/cinder-full.yaml https://github.com/kubernetes/cloud-provider-openstack/blob/master/examples/persistent-volume-provisioning/cinder/cinder-storage-class.yaml

[kiwik]

@zetaab I know your means, I just think if we can quick start a full stack example about kubernetes.io/cinder provisioner in one step "kubectl create -f cinder-in-tree-full.yaml", that is better for beginner than copying piece code from several files.

[dims]

/ok-to-test

[dims]

+1 to full complete examples. please do update some doc too when you can that can explain the files.

/approve

[kfox1111]

Can we turn this, and some of the other yaml files into a helm chart? It would be great to be able to helm install the thing rather then tracking down all the individual bits, changing config, then uploading one by one.

[dims]

@kfox1111 +1 added a issue to track the idea

[dims]

/lgtm

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