Terraform module for simplifying rules between security groups.
- from_name: Name of source service/system
- port: Port to allow ingress on
- to_name: Name of destination service/system
- from_cidr: (optional) Source CIDR
- from_prefix_list: (optional) Source prefix list ARN
- from_security_group: (optional) Source security group ARN
- to_cidr: (optional) Destination CIDR
- to_prefix_list: (optional) Destination prefix list ARN
- to_security_group: (optional) Destination security group ARN