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Clarify interaction between NodeExpandVolume and OFFLINE capability #356

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Mar 7, 2019
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Clarify interaction between NodeExpandVolume and OFFLINE capability #356

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2 changes: 2 additions & 0 deletions spec.md
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Expand Up @@ -2301,6 +2301,8 @@ If plugin has `STAGE_UNSTAGE_VOLUME` node capability then:

Otherwise `NodeExpandVolume` MUST be called after successful `NodePublishVolume`.

If a plugin only supports expansion via the `VolumeExpansion.OFFLINE` capability, then the volume MUST first be taken offline and expanded via `ControllerExpandVolume` (see `ControllerExpandVolume` for more details), and then node-staged or node-published before it can be expanded on the node via `NodeExpandVolume`.

```protobuf
message NodeExpandVolumeRequest {
// The ID of the volume. This field is REQUIRED.
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