So we've gone as far as we can with our cluster, without any form of persistence. As soon as we want to retain data, be it a database, metrics history, or objects, we need one or more ways to persist data within the cluster.
Here are some popular options, ranked in difficulty/complexity, in vaguely ascending order:
- Local Path Provisioner (on k3s)
- OpenEBS (coming soon)
- Rook Ceph (coming soon)
- Longhorn (coming soon)