Deploying elasticsearch cluster in kubernetes - how to deal with storage?

Im wanting to grow my elasticsearch installation into a cluster. To this end I'd like to run it under kubernetes but I can't figure out how to keep the various data stores (per container) properly assigned.

IE if I were using dedicated hosts Id have local storage and each cluster member would use that storage. If I move to k8 I need to have a system that cluster members can come / go and know which data to associate with. Does that make any sense? Im sure this has been figured out / understood but I can't think of the proper question(s) to ask.

Reading about clustering (here) I get the sense that SANs aren't the way to go. Latency is low but local disks seem to be preferred. Accurate?

Any pointers would be appreciated.

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