Installation of K8s using kubeadmin - Pod networking

Certified Kubernetes Administrator
#1

In the installation process, everything works fine until i need to install the weave for pod networking. Basically i follow the steps from the course. After I use the following command, everything goes bad.

Capture
Capture1057×638 44.3 KB 

kubectl apply -f https://github.com/weaveworks/weave/releases/download/v2.8.1/weave-daemonset-k8s.yaml

As you can in see in the picture, before i set the apply command, when i enter " kubectl get pods" it looks like working, because I have as an output “No resources found in default namespace.” But after, I get “The connection to the server 192.168.56.11:6443 was refused - did you specify the right host or port?”

Does anybody knows the problem?

#2

I may have answered you this one on Udemy; but in any event: most likely you have a problem with your cgroups configuration. The symptom of this is that kubectl initially works, and then begins to fail shortly after you first test it.

The fix is to get the containerd config file config.toml correct. See the Node Setup page of the kubeadm tutorial in the CKA course repo.