---
title: "Verify VAST COSI Driver Deployment"
slug: "verify-vast-cosi-driver-deployment-2-4"
updated: 2026-10-28T02:14:43Z
published: 2026-10-28T02:14:43Z
canonical: "docs.vastdata.com/verify-vast-cosi-driver-deployment-2-4"
---

> ## 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.

# Verify VAST COSI Driver Deployment

To verify your VAST COSI Driver deployment, provision a bucket on the VAST cluster and prepare credentials for accessing the bucket:

1. Create a Kubernetes YAML configuration file that defines bucket access:

```plaintext
kind: BucketAccessClass
apiVersion: objectstorage.k8s.io/v1alpha1
metadata:
 name: sample-bac
driverName: csi.vastdata.com
authenticationType: KEY
---
kind: BucketAccess
apiVersion: objectstorage.k8s.io/v1alpha1
metadata:
 name: sample-access
spec:
 bucketClaimName: sample-bucket
 bucketAccessClassName: sample-bac
 credentialsSecretName: my-super-secret
---
kind: BucketClaim
apiVersion: objectstorage.k8s.io/v1alpha1
metadata:
 name: sample-bucket
spec:
 bucketClassName: vastdata-bucket
 protocols:
 - s3
```
2. Apply the bucket access configuration file:

```plaintext
kubectl apply -f <filename>.yaml
```
3. Verify that a newly created bucket `vastdata-bucket` is displayed as a view in the VAST Cluster's Web UI.
4. Verify that the newly created user named `vastdata-bucket` is displayed in the VAST Cluster's Web UI.
5. Verify that a newly created Kubernetes secret `my-super-secret` is listed in the output of the following command:

```plaintext
kubectl get secret
```
6. Create a Kubernetes YAML configuration file for a pod that uses the newly created Kubernetes secret:

```plaintext
apiVersion: v1
kind: Pod
metadata:
 name: awscli
spec:
 containers:
   - name: awscli
     image: amazon/aws-cli
     command: ["sleep"]
     args: ["9999999999"]
     volumeMounts:
       - name: cosi-secrets
         mountPath: /data/cosi
         readOnly: true
 volumes:
 - name: cosi-secrets
   secret:
     secretName: my-super-secret
```
7. Apply the pod configuration file:

```plaintext
kubectl apply -f <filename>.yaml
```
8. Verify the content of the Kubernetes secret:

```plaintext
kubectl exec -it awscli cat /data/cosi/BucketInfo
```

The JSON output lists the VAST Cluster endpoint, the access key and the secret key, which can be used to access the newly created bucket.