Kubectl: Kubectl WSL2 The connection to the server 127.0.0.1:32770 was refused

[hershkoy]

I am new to kubernetes. I am trying to run it locally on my windows 10 using WSL2 (following this tutorial )

Everything was fine until I got to the section about minikube. After installing systemd, kubernetes seems to not working properly. Even kubectl version which worked previously stopped working, and same with KinD dashboard that is also not working.

currently this is my issue:

ubuntu@DESKTOP-HED9HVG:~$ kubectl version
^C   <== (process just hand here)

ubuntu@DESKTOP-HED9HVG:~$ sudo kubectl version
Client Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.8", GitCommit:"9f2892aab98fe339f3bd70e3c470144299398ace", GitTreeState:"clean", BuildDate:"2020-08-13T16:12:48Z", GoVersion:"go1.13.15", Compiler:"gc", Platform:"linux/amd64"}
The connection to the server 127.0.0.1:32770 was refused - did you specify the right host or port?

How to debug this?

[hershkoy]

I enabled the "show system containers". I see that kubernetes containers are created, but I don't see any one that has port 32770 open.
I don't know if this information helps, just try to debug it.

I also tried restarting the docker service, and reset the Kubernetes cluster.

$ docker ps -a
CONTAINER ID        IMAGE                  COMMAND                  CREATED              STATUS              PORTS               NAMES
6c7994eefc27        79da37e5a3aa           "/kube-vpnkit-forwar…"   About a minute ago   Up About a minute                       k8s_vpnkit-controller_vpnkit-controller_kube-system_13533fda-c6fb-40cb-8a9b-cfffafe1b72a_0
9badc4784fd3        e704287ce753           "/storage-provisione…"   About a minute ago   Up About a minute                       k8s_storage-provisioner_storage-provisioner_kube-system_3d6d2fb7-12c7-4002-b4ef-8cf729fc7f8e_0
2d69f4509a94        k8s.gcr.io/pause:3.2   "/pause"                 About a minute ago   Up About a minute                       k8s_POD_vpnkit-controller_kube-system_13533fda-c6fb-40cb-8a9b-cfffafe1b72a_0
5682ac646704        k8s.gcr.io/pause:3.2   "/pause"                 About a minute ago   Up About a minute                       k8s_POD_storage-provisioner_kube-system_3d6d2fb7-12c7-4002-b4ef-8cf729fc7f8e_0
4d492b00dd3d        67da37a9a360           "/coredns -conf /etc…"   2 minutes ago        Up 2 minutes                            k8s_coredns_coredns-66bff467f8-46jq6_kube-system_3a75c5c6-ee5b-41b9-ad5e-69f34debd9b4_0
71a01f1f7d96        67da37a9a360           "/coredns -conf /etc…"   2 minutes ago        Up 2 minutes                            k8s_coredns_coredns-66bff467f8-g4bf4_kube-system_353d3f42-8505-4d7c-b725-72196e2ff02f_0
adb0a5646d90        k8s.gcr.io/pause:3.2   "/pause"                 2 minutes ago        Up 2 minutes                            k8s_POD_coredns-66bff467f8-g4bf4_kube-system_353d3f42-8505-4d7c-b725-72196e2ff02f_0
a7cc0ba1a032        k8s.gcr.io/pause:3.2   "/pause"                 2 minutes ago        Up 2 minutes                            k8s_POD_coredns-66bff467f8-46jq6_kube-system_3a75c5c6-ee5b-41b9-ad5e-69f34debd9b4_0
2bde645459d4        0fb7201f92d0           "/usr/local/bin/kube…"   2 minutes ago        Up 2 minutes                            k8s_kube-proxy_kube-proxy-nqk4k_kube-system_5b159092-c530-4f8b-b383-a815696b6af0_0
75a2f75a86c7        k8s.gcr.io/pause:3.2   "/pause"                 2 minutes ago        Up 2 minutes                            k8s_POD_kube-proxy-nqk4k_kube-system_5b159092-c530-4f8b-b383-a815696b6af0_0
c06c2507ba78        6f7135fb47e0           "kube-scheduler --au…"   3 minutes ago        Up 3 minutes                            k8s_kube-scheduler_kube-scheduler-docker-desktop_kube-system_c808ba8a724ff4e00643b5c4f7fc454b_0
ba4193df4818        6a979351fe5e           "kube-controller-man…"   3 minutes ago        Up 3 minutes                            k8s_kube-controller-manager_kube-controller-manager-docker-desktop_kube-system_4f20c2277b1a9bc95a8d0aefdd70ac22_0
7b912723e1c8        303ce5db0e90           "etcd --advertise-cl…"   3 minutes ago        Up 3 minutes                            k8s_etcd_etcd-docker-desktop_kube-system_d6844c5fb9714fb5465ba8579918e27e_0
6d5b5dc3c2a7        92d040a0dca7           "kube-apiserver --ad…"   3 minutes ago        Up 3 minutes                            k8s_kube-apiserver_kube-apiserver-docker-desktop_kube-system_04dc74f076b53c39b47cb1bf82330dfd_0
96311c452e2d        k8s.gcr.io/pause:3.2   "/pause"                 3 minutes ago        Up 3 minutes                            k8s_POD_kube-scheduler-docker-desktop_kube-system_c808ba8a724ff4e00643b5c4f7fc454b_0
eb99624d5a0e        k8s.gcr.io/pause:3.2   "/pause"                 3 minutes ago        Up 3 minutes                            k8s_POD_kube-controller-manager-docker-desktop_kube-system_4f20c2277b1a9bc95a8d0aefdd70ac22_0
e5e5fad31ae3        k8s.gcr.io/pause:3.2   "/pause"                 3 minutes ago        Up 3 minutes                            k8s_POD_kube-apiserver-docker-desktop_kube-system_04dc74f076b53c39b47cb1bf82330dfd_0
44f63d157d03        k8s.gcr.io/pause:3.2   "/pause"                 3 minutes ago        Up 3 minutes                            k8s_POD_etcd-docker-desktop_kube-system_d6844c5fb9714fb5465ba8579918e27e_0

[hershkoy]

I did
mv .kube .kube_1

And there is a slight improvement, as kubectl is at least not stuck anymore when activated without sudo:

ubuntu@DESKTOP-HED9HVG:~$ kubectl version
Client Version: version.Info{Major:"1", Minor:"18", GitVersion:"v1.18.8", GitCommit:"9f2892aab98fe339f3bd70e3c470144299398ace", GitTreeState:"clean", BuildDate:"2020-08-13T16:12:48Z", GoVersion:"go1.13.15", Compiler:"gc", Platform:"linux/amd64"}
The connection to the server localhost:8080 was refused - did you specify the right host or port?

The connection refused issue still exists though

[hershkoy]

Update:

I did

ubuntu@DESKTOP-HED9HVG:~$ kind create cluster --name wslkind
Creating cluster "wslkind" ...
 ✓ Ensuring node image (kindest/node:v1.17.0) 🖼
 ✓ Preparing nodes 📦
 ✓ Writing configuration 📜
 ✓ Starting control-plane 🕹️
 ✓ Installing CNI 🔌
 ✓ Installing StorageClass 💾
Set kubectl context to "kind-wslkind"
You can now use your cluster with:

kubectl cluster-info --context kind-wslkind

Have a nice day! 👋

And now it seems that kubectl is working

ubuntu@DESKTOP-HED9HVG:~$ kubectl cluster-info
Kubernetes master is running at https://127.0.0.1:32768
KubeDNS is running at https://127.0.0.1:32768/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy

To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.

But as far as I can understand, it is still not running from the default cluster

[hershkoy]

ok, I managed to solve it, I think

first, I deleted the cluster I created previously, and as expected got the same refused error:

$kubectl config delete-cluster kind-wslkind
$kubectl cluster-info
To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.
The connection to the server localhost:8080 was refused - did you specify the right host or port?

I deleted the ~/.kube folder and then:

ubuntu@DESKTOP-HED9HVG:~$ mkdir ~/.kube && cp /mnt/c/Users/[USERNAME]/.kube/config ~/.kube
ubuntu@DESKTOP-HED9HVG:~$ kubectl config get-contexts
CURRENT   NAME             CLUSTER          AUTHINFO         NAMESPACE
*         docker-desktop   docker-desktop   docker-desktop
ubuntu@DESKTOP-HED9HVG:~$ kubectl config use-context docker-desktop

And now cluster seems to work again as expected:

ubuntu@DESKTOP-HED9HVG:~$ kubectl cluster-info
Kubernetes master is running at https://kubernetes.docker.internal:6443
KubeDNS is running at https://kubernetes.docker.internal:6443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy