RKE2 and rancher

Rancher
1

Really uncertain wether or not i should ask this question here.
But, i’m trying to add a RKE2 cluster to rancher, through the rancherUI.

Right now, i’m running 2 clusters, where one of them is running rancher.
I’m trying to add the rke2 cluster to rancher, which essentially has one way communication. This means, rke2 can’t directly communicate with the rancher cluster, but the rancher cluster can communicate with the rke2 cluster.

Is there some way to add rke2 to rancher using this one way communication, or is it necessary to have two way communication?

2

Did you have a error?

I have multiple RKE2 private clusters running privately with no public endpoint being managed by a publicly accessible Rancher install.

3

The error as such, is “Connection refused”, as the RKE2 cluster doesn’t have access to the server Rancher manager is running on.
But, the server Rancher manager is running, does have access to the server the RKE2 cluster is running on.

4

I see.

The communication is one way, but in the other direction unfortunately. When registering a cluster, the cluster must be able to talk to the Rancher Manager.