The connection to the server localhost:8080 was refused - did you specify the right host or port?

[JWheelMaker]

Environmental Info:
K3s Version: v1.24.6+k3s1 (a8e0c66)

Node(s) CPU architecture, OS, and Version: Raspberry Pi 4B arm64 newest Version of Raspbeery Pi OS

Cluster Configuration: 2 Pi 4B in the same network to get into one k3s cluster

Describe the bug:
On master node i can see both nodes by executing kubectl get nodes. But when I use the command on the second node I receive to following error:

The connection to the server localhost:8080 was refused - did you specify the right host or port?

Steps To Reproduce:

• Installed K3s the usual way and added the second node to the cluster

Expected behavior:

Actual behavior:

Additional context / logs:

[brandond]

Did you make the second node a server, or an agent? Agents don't have an admin kubeconfig on them; you're not expected to be able to run kubectl there.

[JWheelMaker]

Yes exactly. So it is right that it acts the way it does?

[brandond]

Yes. If you want to use kubectl on hosts other than the server, you need to copy the admin kubeconfig from the server.

[JWheelMaker]

Oh ok. That sounds less like a problem than I first thought :). How can I apply the admin kubeconfig to the worker? I just installed the k3s-agent so there is no k3s.yaml?

[brandond]

However you normally copy files between hosts... scp, copy-paste, floppy disk...

[JWheelMaker]

Ok yea that makes sence... xD
Tanks for your help :)