due to a wrong installation method (single node) we would like to migrate our existing kubernetes cluster to a newer and HA-rancher-kubernetes cluster.
Can someone tell me if it’s safe to do following:
- remove (previously imported) cluster from our 2.4.8 single-node rancher installation
- register this cluster again on our new kubernetes-managed 2.5 rancher-cluster?
We already tried this with our development cluster and it worked fine, the only thing which was necessary to do was to:
- create user/admin accounts again
- reassign all namespaces to the corresponding rancher projects
Would be nice to get some more opinions on this, right now it looks more or less safe :smiley:
Also does someone know what happens if one kubernetes cluster is registered/imported to two rancher instances at the same time (like 2.4.8 and 2.5 at the same time) - I know its probably really a bad Idea - just want to get a better understanding if I’m wrong :D