[BUG] Agent node have no valid KUBECONFIG file

[johgoe]

I'm running a cluster with one server and one agent node. My agent containers continiues to log this message to stdout

E1215 11:20:49.464391   25089 memcache.go:265] couldn't get current server API group list: Get "http://localhost:8080/api?timeout=32s": dial tcp 127.0.0.1:8080: connect: connection refused
The connection to the server localhost:8080 was refused - did you specify the right host or port?
``
My analysis shows that this message is from kubectl. The reasons is there is no kubeconfig which I can confirm by executing `podman exec -it k3d-kyma-agent-0 kubectl config view` on my agent but there is one on the server node

apiVersion: v1
clusters: null
contexts: null
current-context: ""
kind: Config
preferences: {}
users: null

I thing the log comes from this line https://github.com/arikmaor/k3d/blob/45fa41893039fb218110d3764babe2dd72fb960f/pkg/types/fixes/assets/k3d-entrypoint.sh#L23 from https://github.com/k3d-io/k3d/pull/1119

Maybe it's caused by my podless podman installation. Can you confirm it's working on a normal docker installation? How the is the KUBECONFIG provided to the agent nodes?

## Which version of `k3d`

- v5.7.5

## Which version of docker

rootless podman 
Client:       Podman Engine
Version:      4.9.3
API Version:  4.9.3
Go Version:   go1.22.2
Built:        Thu Jan  1 01:00:00 1970
OS/Arch:      linux/amd64

[andrew8er]

I get the same error using Docker Desktop on macOS.

Docker Desktop: 4.37.2
k3d: 5.7.5
image: docker.io/rancher/k3s:v1.31.4-k3s1