Kops validate cluster giving an error saying no such host

Question

I've created a kubernetes cluster using kops on AWS. I see my master and worker nodes have been created but when I execute the kops validate cluster, I get an error saying no such host.

What is the issue here?

Answer 1

One of the possible reasons could be using a Private DNS zone. If you've created a private DNS zone in route 53, you will not be able to access your API from your computer as that would be outside the private VPC. 

You can SSH into the master and try executing the following command:

ssh  -i .ssh/id_rsa admin@ipv4-public-ip-of-master
kubectl get nodes

Comments

Hi, I'm facing the same issue, when I tried to ssh and log in the master node I get an error

ssh: Could not resolve hostname ********: Name or service not known

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Hi@nishad,

By default SSH is working on port 22. So make sure port 22 is enabled in your master node.