[Enhancement]: EKS should support 100.64.0.0/10 and 198.19.0.0/16 #37396
Labels
enhancement
Requests to existing resources that expand the functionality or scope.
service/eks
Issues and PRs that pertain to the eks service.
Description
EKS supports 100.64.0.0/10 and 198.19.0.0/16 CIDR blocks as per:
https://aws.amazon.com/about-aws/whats-new/2018/10/amazon-eks-now-supports-additional-vpc-cidr-blocks/
If you try to use these CIDR blocks you will receive an error
The validation expression to fix is: https://github.com/hashicorp/terraform-provider-aws/blob/fbad5d3b00f58789b2b70fc6188ea240f1191e49/internal/service/eks/cluster.go#L191C8-L191C168
In big organizations that have grown through aquisitions, they tend to have a very fragmented ip spaces. So it would be great if we could make use of this extra ip space.
Affected Resource(s) and/or Data Source(s)
aws_eks_cluster
Potential Terraform Configuration
No response
References
No response
Would you like to implement a fix?
None
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