kubectl connection refused

[iamantil]

Not sure if this a bug

What keywords did you search in kubeadm issues before filing this one?

"Unhandled Error" err="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"

If you have found any duplicates, you should instead reply there and close this page.

If you have not found any duplicates, delete this section and continue on.

Is this a BUG REPORT or FEATURE REQUEST?

Choose one: BUG REPORT or FEATURE REQUEST

Versions

kubeadm version (use kubeadm version):

clientVersion:
buildDate: "2024-09-11T21:26:49Z"
compiler: gc
gitCommit: 948afe5ca072329a73c8e79ed5938717a5cb3d21
gitTreeState: clean
gitVersion: v1.31.1
goVersion: go1.22.6
major: "1"
minor: "31"
platform: linux/amd64

Environment:

• Kubernetes version (use kubectl version):
• Cloud provider or hardware configuration:
• OS (e.g. from /etc/os-release):
• Kernel (e.g. uname -a):
• Container runtime (CRI) (e.g. containerd, cri-o):
• Container networking plugin (CNI) (e.g. Calico, Cilium):
• Others:

What happened?

Unable to use the kubectl CLU

What you expected to happen?

At least the pods should be displayed after the initialization of the cluster.

How to reproduce it (as minimally and precisely as possible)?

I guess initializing the kubedm cluster in External CA mode can do it.

Anything else we need to know?

[neolit123]

/support

[github-actions]

Hello, @iamantil 🤖 👋

You seem to have troubles using Kubernetes and kubeadm.
Note that our issue trackers should not be used for providing support to users.
There are special channels for that purpose.

Please see:

• https://github.com/kubernetes/kubeadm#support

[pharazon]

You need to run kubectl get nodes on master, or remotely to master node. If you run the command on or to workers, you get this error.

On kube worker:

# kubectl get nodes
E1224 09:52:40.990045  718653 memcache.go:265] "Unhandled Error" err="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?

On kube master:

# kubectl get nodes
NAME          STATUS   ROLES           AGE   VERSION
kubernetes1   Ready    control-plane   35d   v1.31.2
kubernetes2   Ready    control-plane   35d   v1.31.2
kubernetes3   Ready    control-plane   35d   v1.31.2
kubeworker1   Ready    <none>          35d   v1.31.2
kubeworker2   Ready    <none>          35d   v1.31.2
kubeworker3   Ready    <none>          25d   v1.31.3