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If you're going to use an external SQL DB, it's recommended that you use something that's externally managed and has more reliability than your rke2 nodes. If you're just running a local datastore you're better off just using etcd. Adding kine but against a local DB is additional complication with no benefit.

@creamy-pencil-82913: I understand what you mean, but in our use case we only have two servers, one per fire zone.

... a cluster of two nodes? Thats asking for trouble, you really should add a third

If you put availability over consistency and have constraints of only having two servers split into two zones, you have no other chance 🙂 And it seems to work. Look at the two node solution of SpectroCloud and the KubeCon Paris talks from SUSE and Synadia.

Well, best of luck 🫡

and how are you setting up your mysql db for replication? Even for that you’d want a 3rd node as a witness.