AWS Kops kubectl: Unable to connect to the server: EOF

AWS Kops kubectl: Unable to connect to the server: EOF

This error is annoying. You could not be able to access you Kubernetes cluster. You would be hit with following error while accessing any kubernetes resources:

$ kubectl cluster-info

To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.
Unable to connect to the server: EOF

$ kops validate cluster
Using cluster from kubectl context: clusters.k8s.local

Validating cluster clusters.k8s.local


unexpected error during validation: error listing nodes: Get https://api-clusters-k8s-local-xxxxxxxxxxxxxxxxxxxxxxxxxxxx.elb.amazonaws.com/api/v1/nodes: EOF

Thankfully we have solutions out there. I'm listing them here for you:

Solution 1:

• The Enpoint is https://api-clusters-k8s-local-xxxxxxxxxxxxxxxxxxxxxxxxxxxx.elb.amazonaws.com. 
• That's an ELB, You check the status of the elb on your AWS console.
• Also check that all the nodes are up and running on the EC2 console.

Solution 2:

• Find the bucket where the state is stored
• Set export KOPS_STATE_STORE=s3://your-k8s-state-store or you can give that as an argument
• Run kops update cluster --state=s3://your-k8s-state-store --yes

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