Each Infrastructure represents a network connection to a unique VPC/VNET, in a region with a Kubernetes. In case of AWS it can also include an ECS. Infrastructure can be created with 4 basic inputs: Name, VPC CIDR, Number of AZs, Region, and the option to enable or disable a K8S/ECS cluster. Behind the scenes, the system will automatically create the subnets, NAT gateway, routes, and clusters in the given region.
Infrastructure Creation Screen
If the Infrastructure requirement includes custom Private/Public Subnet CIDR, it can be achieved using Advanced Options.
A common use for Infrastructure is having two Infrastructures, one for prod and one for non-prod. Another one is having an infrastructure in a different region either for DR or localized deployments for clients in that region.