My team has a vault cluster running on rke2 1.20 but the latest upgrade for vault requires it to run on 1.21+. Since this is a pretty important cluster with stateful sets and all our vault secrets we weren't 100% sure if we could simply upgrade both the rke2 master and agent by joining a new server to the cluster and make the leader election and call it a day or if there is a more preferred way to do this.
Any thoughts? My team can provide me with more details as needed if you have follow up questions
(and if there is a better channel to ask this, please let me know)