Hey everyone! I'm currently trying to upgrade my EKS cluster's EC2 AMI to Amazon Linux 2023. I've read that we should use the nodeadm command instead of the bootstrap command in the user data script to connect the EC2 instance to the cluster. However, I'm having trouble with this because the newly created instance using the new AMI isn't connecting to the cluster properly. I've tried to replicate the setup from my old configuration using the new nodeadm method. Can anyone offer guidance or share an example of a working setup? I really appreciate any help! Thanks!
4 Answers
If you’re still having issues, creating new node groups could be a solid way to start fresh and avoid lingering problems from the previous setup.
Just to clarify, are you trying to migrate to Amazon Linux 2023? Amazon Linux 3 doesn't actually exist yet. Make sure you're following the right versions!
You might want to consider using Bottlerocket for your nodes instead. It might simplify things a lot. Plus, if it's feasible for your setup, AWS managed node groups are much easier for adding and removing nodes than self-managed ones!
Have you checked the nodeadm-config and the logs on the failing node? They can give you some clues about why it’s not connecting to the cluster. It’s definitely worth a look!
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