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open-nomad/.changelog/14484.txt

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CSI: failed allocation should not block its own controller unpublish (#14484) A Nomad user reported problems with CSI volumes associated with failed allocations, where the Nomad server did not send a controller unpublish RPC. The controller unpublish is skipped if other non-terminal allocations on the same node claim the volume. The check has a bug where the allocation belonging to the claim being freed was included in the check incorrectly. During a normal allocation stop for job stop or a new version of the job, the allocation is terminal. But allocations that fail are not yet marked terminal at the point in time when the client sends the unpublish RPC to the server. For CSI plugins that support controller attach/detach, this means that the controller will not be able to detach the volume from the allocation's host and the replacement claim will fail until a GC is run. This changeset fixes the conditional so that the claim's own allocation is not included, and makes the logic easier to read. Include a test case covering this path. Also includes two minor extra bugfixes: * Entities we get from the state store should always be copied before altering. Ensure that we copy the volume in the top-level unpublish workflow before handing off to the steps. * The list stub object for volumes in `nomad/structs` did not match the stub object in `api`. The `api` package also did not include the current readers/writers fields that are expected by the UI. True up the two objects and add the previously undocumented fields to the docs.
2022-09-08 17:30:05 +00:00
```release-note:bug
csi: Fixed a bug where the server would not send controller unpublish for a failed allocation.
```
```release-note:bug
csi: Fixed a data race in the volume unpublish endpoint that could result in claims being incorrectly marked as freed before being persisted to raft.
```
```release-note:bug
api: Fixed a bug where the List Volume API did not include the `ControllerRequired` and `ResourceExhausted` fields.
```