---
title: "Define a Bucket Access Class"
slug: "define-a-bucket-access-class-2-5"
updated: 2026-10-28T02:14:43Z
published: 2026-10-28T02:14:43Z
canonical: "docs.vastdata.com/define-a-bucket-access-class-2-5"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.vastdata.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Define a Bucket Access Class

A bucket access class (`BucketAccessClass`) is a set of common properties that VAST COSI Driver uses to set up bucket access.

A minimal bucket access class would include the driver name and authentication type, as shown below:

```plaintext
kind: BucketAccessClass
apiVersion: objectstorage.k8s.io/v1alpha1
metadata:
  name: sample-bac
driverName: csi.vastdata.com
authenticationType: KEY
```