Rancher documentation on k3s is quite nice and its HA support (both with external DB or embedded etcd) look nice, but I don't want/need an HA setup.
In case my master node fails, I don't mind having downtime while I re-create it or make a master out of another one, but I cannot find documentation how to switch master node.
Which files should I backup regularly (or host in NFS mount which is what I want to do) so I can easily re-setup the cluster with another server node but with the exact same state?
For the initial setup, we do:
- master:
curl -sfL https://get.k3s.io | sh - worker:
curl -sfL https://get.k3s.io | K3S_URL=\"https://${MASTER_IP}:6443\" K3S_TOKEN=\"${TOKEN}\" sh -s
If I just re-run the scripts choosing another master, I'll have all the state lost. Is there a single directory I can copy/preserve (and an argument to pass to script to re-use it)?
