'ondat' (storageos) on charmed-kubernetes - adding block storage to nodes

I have deployed a charmed-kubernetes cluster on my GCP (not GKE) account. I have also deployed the latest version of “ondat” (storageos) on this K8 cluster. I did customize the charmed-kubernetes bundle.yaml wrt cores, memory, root filesystem.

However, I need to add in larger, unformatted, block devices for ‘ondat’ to use for it’s storageos storageclass. I was hoping that I could do this in the kubernetes-worker charm itself, but I did get some Slack feedback that this charm would not support adding storage via Juju via the charm deployment.

Any thoughts here on adding this storage during deployment? I guess I could attach GCP storage to the kuberenetes-worker nodes AFTER the charm deployment, but that is not very automated for teardown/rebuild.

Thanks in advance…