},
											},
										},
									},
								},
							},
						},
						{
							Name: "v2", // touched
							Schema: &apiextensions.CustomResourceValidation{
								OpenAPIV3Schema: &apiextensions.JSONSchemaProps{
									Type: "object",
									Properties: map[string]apiextensions.JSONSchemaProps{

With CSI the Kubernetes volume layer becomes truly extensible, allowing third party storage developers to write drivers making their storage systems available in Kubernetes without having to touch the core code.

CSI was first introduction as alpha in Kubernetes v1.9 and moved to beta in Kubernetes v1.10.