CSI Container Storage Interface

gRPC spec for orchestrator storage plugins.

Definition

CSI spec v1.10 (2024) defines Identity, Controller (CreateVolume, DeleteVolume, ControllerPublishVolume, etc.), Node (NodeStageVolume, NodePublishVolume), Snapshot (CreateSnapshot, ListSnapshots), Volume Expansion, Group Snapshot (alpha 2024) services. Implemented in Kubernetes via external-provisioner, external-attacher, external-resizer, external-snapshotter sidecars.

Origin

Kubernetes + Mesos + Cloud Foundry + Docker, spec announced 2017, v1.0.0 2018, v1.10 2024.

Usage

Kubernetes storage standard since K8s 1.13 GA. 100+ CSI drivers listed.

Related terms

• Kubernetes — consommateur principal.
• Persistent Volume — objet K8s associé.
• CNCF — fondation.