K3s upgrade single node cluster

[Wuppie007]

I'm running a single node cluster for a couple of months now, and I was planning to update de k3s version.

I've found k3s upgrades to do it manually but i'm nog sure about the existing arguments (EXISTING_K3S_ENV).

I also ran into "Automatic upgrades", also mentioned in this discussion. Is this also working for single node clusters?

[MariusSchiffer]

I'm usually adding the automatic upgrade plan with cordon: false to single-node clusters, but setting the k3s_upgrade=false label to the node. When I want to upgrade, I set the label to true and restart the upgrade controller deployment. Then I can monitor the upgrade.

Afterwards I set the label back to k3s_upgrade=false.