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yes, for rke2/k3s you need to deploy the cpi/csi charts as part of creating the cluster. You do this via the

cloud provider

option when creating the cluster. However as you found out, this is not supported after a cluster has already been created. There may be a workaround or something I’m missing that others could chime in with, but I would suggest either: • using the harvester node driver through rancher (this automatically installs the cloud provider for harvester for you) • creating a new

use existing nodes

cluster, where harvester cloud provider is selected, and registering nodes there (though there may be some additional step I’m not aware of to get this to work)

I don't know how to create nodes using Harvester as cloud provider for SLES-15 OS (that's why I pre-created the cluster). For Ubuntu I have a cloud image and was able to create harvester cluster and nodes on the fly. I was advised by Harvester team that it was possible to install the driver post-cluster creation, but since I reported further issues I have not got a response back from them: https://github.com/harvester/harvester/issues/3308