You can add external Kubernetes clusters for backup in VMware Cloud Director Object Storage Extension.


  • Verify that the Kubernetes version is 1.16 or above.
  • Verify that the primary node's IP is reachable from the VMware Cloud Director Object Storage Extension backend server.
  • Verify that the S3 endpoint can be reached by the external cluster's pod.


  1. Log in to the VMware Cloud Director tenant portal.
  2. From the More drop-down menu, select Object Storage.
  3. Click Kubernetes Clusters and then Unprotected Clusters.
  4. Click Add External Cluster.
  5. Enter a name for the cluster.
  6. Click Select File and select the kubconfig file.
  7. Click Save.
    The external cluster is added under Unprotected Clusters.

What to do next

You must activate the protection to create a backup of the cluster that you added -Backing Up Kubernetes Clusters.