k3OS - Master node died, how to rebuild?


Apologies if this has been answered somewhere already but I cannot find anything that helps me.

I’ve been running K3OS on several Pi4s for a while now and it has been great.

Yesterday however, the master node (single-master) died. I rebuilt it and was hoping I could just update the worker nodes with the new token to save rebuilding them too, but I cannot see how to do this.

I also tried specifying the original token in the k3os config.yaml when rebuilding the master, but no luck (agents fail to connect - tls: bad certificate).

Is there a way to re-join the worker nodes to a new master without rebuilding the entire cluster?

Many thanks