Container Storage Interface (CSI) Specification

1. Architecture

   Controller and node plugin deployment models.

2. Volume lifecycle

   Create, publish, stage and unpublish states.

3. RPC interface and error scheme

   gRPC services and error code conventions.

4. Identity service

   GetPluginInfo and capabilities.

5. Controller service

   CreateVolume, ControllerPublishVolume, snapshots and expansion.

6. Node service

   NodeStageVolume and NodePublishVolume.

7. Secrets requirements

   Handling secrets in RPC messages.

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