Feature Overview (aka. Goal Summary)  

Graduce the new PV access mode ReadWriteOncePod as GA.

Such PV/PVC can be used only in a single pod on a single node compared to the traditional ReadWriteOnce access mode, where such a PV/PVC can be used on a single node by many pods.

Goals (aka. expected user outcomes)

The customers can start using the new ReadWriteOncePod access mode.

This new mode allows customers to provision and attach PV and get the guarantee that it cannot be attached to another local pod.

Requirements (aka. Acceptance Criteria):

This new mode should support the same operations as regular ReadWriteOnce PVs therefore it should pass the regression tests. We should also ensure that this PV can't be accessed by another local-to-node pod.

Use Cases (Optional):

As a user I want to attach a PV to a pod and ensure that it can't be accessed by another local pod.

Background

We are getting this feature from upstream as GA. We need to test it and fully support it.

• Enhancement issue: https://github.com/kubernetes/enhancements/issues/2485
• KEP: https://github.com/kubernetes/enhancements/pull/2489

Customer Considerations

Check that there is no limitations / regression.

Documentation Considerations

Remove tech preview warning. No additional change.

Interoperability Considerations

N/A