did you specify the right host or port? error on Kubernetes

The issue is that your kubeconfig is not right.To auto-generate it run:

gcloud container clusters get-credentials "CLUSTER NAME"

This worked for me.

Make sure your config is set to the project -

gcloud config set project [PROJECT_ID]

1. Run a checklist of the Clusters in the account:

gcloud container clusters list

2. Check the output :

NAME           LOCATION       MASTER_VERSION  MASTER_IP      MACHINE_TYPE  NODE_VE.      NUM_NODES  STATUSalpha-cluster  asia-south1-a  1.9.7-gke.6     35.200.254.78  f1-micro      1.9.7-gke.6   3          RUNNING

3. Run the following cmd to fetch credentials for your running cluster:

gcloud container clusters get-credentials your-cluster-name --zone your-zone       --project your-project

4. The following output follows:

Fetching cluster endpoint and auth data.kubeconfig entry generated for alpha-cluster.

5. Try checking details of the node running kubectl such as below to list all pods in the current namespace, with more details:

kubectl get nodes -o wide

Should be good to go.

After running "kubeinit" command, kubernetes asks you to run following as regular user

mkdir -p $HOME/.kube

sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config

sudo chown $(id -u):$(id -g) $HOME/.kube/config

But if you run this as a regular user, you will get "The connection to the server localhost:8080 was refused - did you specify the right host or port?" when trying to access as a root user and vice versa. So try accessing "kubectl" as the user who executed the above commands.