kubectl get all

kubectl get all
NAME                 TYPE        CLUSTER-IP   EXTERNAL-IP   PORT(S)   AGE
service/kubernetes   ClusterIP   10.96.0.1    <none>        443/TCP   6m40s

kubectl get all
The connection to the server localhost:8080 was refused - did you specify the right host or port?

Solution: Have you created your Kubernetes cluster kubeadm init? 

See also

• kubectl get: [ all | componentstatus | pods | apiservices | events | event| nodes | replicaset | services | svc | namespaces| hpa | secret | deployments | serviceaccounts | endpoints | daemonset | networkpolicy ], kubectl get -h
• kubectl: [ cp | config | create | delete | edit | explain | apply | exec | get | set | drain | uncordon | rolling-update | rollout | logs | run | auth | label | annotate | version | top | diff | debug | replace | describe | port-forward | proxy | scale | rollout | api-resources | expose deployment | expose | patch | attach | get endpoints | ~/.kube/config | kubectl logs --help | kubectl --help, kubectl-convert, kubectl autoscale, kubectl.kubernetes.io