You can deploy FortiGate-VMs to support Auto Scaling on AWS. Optionally, AWS Transit Gateway can be used to connect Amazon Virtual Private Clouds (Amazon VPCs) and their on-premises networks to a single gateway. This integration extends the FortiGate protection to all networks connected to the Transit Gateway.
Follow this step-by-step guide to learn more: https://docs.fortinet.com/document/fortigate-public-cloud/7.4.0/aws-administration-guide/397979/depl...
You can also access the deployment package on GitHub: https://github.com/fortinet/fortigate-autoscale-aws