deprecate alpha annotation used in CSINode for migration detection

[gnufied]

I think we should try and replace alpha annotation with a GAed version because I think we will end up having that annotation until k8s makes V2 (which could be forever).

/sig storage

cc @kubernetes/sig-storage-api-reviews

[msau42]

/triage accepted
/assign @JiaweiWang
@kubernetes/sig-storage-bugs

[k8s-ci-robot]

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In response to this:

/triage accepted
/assign @JiaweiWang
@kubernetes/sig-storage-bugs

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[msau42]

/assign @Jiawei0227

[Jiawei0227]

annotation that is still not in GA:

1. On CSINode:

• storage.alpha.kubernetes.io/migrated-plugins: xxx,xxx This is still in alpha

2. On PVC:

• volume.beta.kubernetes.io/storage-provisioner: pd.csi.storage.gke.io This is still in Beta

These are the annos that I found need to be upgrade. I am wondering if there is anything else?

[jsafrane]

storage.alpha.kubernetes.io/migrated-plugins: will we need it GA? It marks nodes with list of migrated plugins. CSI migration will GA soon-ish and 2 releases after GA the annotation becomes useless and could be removed. (2 releases because of potentially old kubelets).

volume.beta.kubernetes.io/storage-provisioner: that should probably get GA.

[Jiawei0227]

First PR to update volume.beta.kubernetes.io/storage-provisioner: kubernetes-sigs/sig-storage-lib-external-provisioner#110

But this might not be related to CSI migration lol

[Jiawei0227]

For volume.beta.kubernetes.io/storage-provisioner: pd.csi.storage.gke.io, we better upgrade it in two releases. The first release we update external-provisioner to understand the new annotation and in the next release we update kubernetes to use the new annotation.

[Jiawei0227]

On kubernetes side #104590 is out to prepare updating the storageprovisioner anno.

[jsafrane]

For volume.beta.kubernetes.io/storage-provisioner: pd.csi.storage.gke.io, we better upgrade it in two releases. The first > release we update external-provisioner to understand the new annotation and in the next release we update kubernetes to use the new annotation.

Kubernetes will need to set both beta and GA annotations for quite some time, beta annotations have the same deprecation policy as regular fields (!).

[Jiawei0227]

Sounds like from the discussion from #104597 is to keep it alpha until all plugins moves to GA and remove it completely. Will close this issue.

[Jiawei0227]

/close

[k8s-ci-robot]

@Jiawei0227: Closing this issue.

In response to this:

/close

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[Jiawei0227]

Create #104760 for tracking the beta annotation removal.