kubernetes service in default namespace

[Dadbod88]

Hi All,
Probably a dumb question but I am running k3s 1.27.4 and I have 5 nodes with all running k3s in server mode. In k3s service file '--service-cidr=172.16.4.0/22' is added, and in the cluster I have kubernetes service in default namespace with 172.16.4.1:443 with endpoints are k3s servers listening on 6443 on all 5 nodes. In the kubeconfig file I have a separate url for cluster.server, which is same as K3S_URL on the nodes. I am wondering how k3s creates kubernetes service with that service IP along with the endpoints as I am not configuring 172.16.4.1:443 anywhere. Thanks in advance.

[brandond]

The apiserver handles that internally. The kubernetes.default service is always available at the first address in the service-cidr block, and has endpoints for each of the active apiserver nodes.