kubectl unable to connect to server: x509: certificate signed by unknown authority

Question

i\'m getting an error when running kubectl one one machine (windows)

the k8s cluster is running on CentOs 7 kubernetes cluster 1.7 master, worker

Here\'s my

Answer 1

I got the same error while running $ kubectl get nodes as a root user. I fixed it by exporting kubelet.conf to environment variable.

$ export KUBECONFIG=/etc/kubernetes/kubelet.conf
$ kubectl get nodes

Answer 2

In case of the error you should export all the kubecfg which contains the certs. kops export kubecfg "your cluster-name and export KOPS_STATE_STORE=s3://"paste your S3 store" .

Now you should be able to access and see the resources of your cluster.

Answer 3

I my case I resolved this issue copying the kubelet configuration to my home kube config

cat /etc/kubernetes/kubelet.conf > ~/.kube/config

Answer 4

On GCP

check: gcloud version

-- localMacOS# gcloud version

Run: --- localMacOS# gcloud container clusters get-credentials 'clusterName' \ --zone=us-'zoneName'

Get clusterName and zoneName from your console -- here: https://console.cloud.google.com/kubernetes/list?

ref: .x509 @market place deployments on GCP #Kubernetes

Answer 5

This was happening because my company's network does not allow self signing certificates through their network. Try switching to a different network