Security Groups in Terraform
Terraform is a great tool by Hashicorp that allows teams to keep track of their infrastructure’s state and manage it declaratively in code. One of its biggest use cases is in managing the ever-increasing amount of AWS resources, one of which is the bread and butter of cloud networking: the security group. Security groups in AWS are simply lists of rules (topping out at 50 rules per group) that can whitelist traffic according to port, CIDR block, and most interestingly other security groups' IDs....