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This is doable with Pulumi, but would require a lot of work. We’ve actually done this for EKS already: https://github.com/pulumi/pulumi-eks I’d recommend going with a cluster from a managed service if you can. You can manage upgrades of managed clusters with Pulumi using the service provider APIs.

oh, Thank you for replying! @gorgeous-egg-16927 I already have used a managed k8s, EKS, you know. But, I thought Pods and Workernodes were hard to convey to the new one because they’re already working with apps and having peculiar settings. However, I found out the pulumi-eks. It’s time to t ry 😄 I truly appreciate that ! ^^

Sure thing — you might also be interested in this blog post: https://www.pulumi.com/blog/day-2-kubernetes-migrating-eks-nodegroups-with-zero-downtime/

@gorgeous-egg-16927 omg…! This is what I genuinely wanted!! Thank you so much for your kindness… I’ll try to migrate k8s clusters with pulumi 🙂