Add support for AWS EKS Fargate identifying attributes

[mackjmr]

Area(s)

area:cloud,aws

What's missing?

cloud.platform value supports aws_eks, but there is no way to differentiate between aws eks vs aws eks fargate.

Describe the solution you'd like

Either:

• Add value aws_eks_fargate to cloud.platform
• Add aws.eks.launchtype similar to aws.ecs.launchtype
• Add aws.eks.node.type with values fargate/ec2