eksctl-io
[Feature] Replace m5.large as default instance type
What feature/behavior/change do you want?
Some AWS regions do not support m5.large instance types for EKS node groups.
From what we've been able to gather, the t3 family which has broader region availability, and t3.medium is also the default instance type when creating node groups through the EKS console.
We would like to switch eksctl's default instance type for EKS node groups to t3.medium.
Why do you want this feature?
This change will allow eksctl to successfully create EKS clusters with default settings in all regions.
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that would be a poor decision. if a region doesn't support the default, the better option is to select a type that is supported. using burstable instances as a default is just a poor decision
https://github.com/aws/aws-eks-best-practices/blob/mainline/latest/bpg/scalability/data-plane.adoc#use-similar-node-sizes-for-consistent-workload-performance
Avoid instance types that use burstable CPUs like T series instances.