The aws-iam-s3 module has two resources with the same name and type. The first one is https://github.com/maddevsio/aws-eks-base/blob/dbb3e9555839e2f1487196865fa93019f31a6ec4/terraform/modules/aws-iam-s3/iam-role.tf#L38. The second one is https://github.com/maddevsio/aws-eks-base/blob/dbb3e9555839e2f1487196865fa93019f31a6ec4/terraform/modules/aws-iam-s3/iam-user.tf#L23