I was setting up EKS with managed node groups and I followed the blog https://www.pulumi.com/blog/aws-eks-managed-nodes-fargate/
to do this.
The blog says the ec2 instances are automatically scaled up and down based on traffic(or is what I understand from reading the blog). However AWS managed node group doesn't do that on their own and require a cluster auto scaler. I am wondering if the latter is true for the managed node group created via pulumi or is crossrails doing some magic and setting up a cluster auto scaler.