Technical Tip: Deploy a different version of FortiOS from the AWS Marketplace

[Jackie_T]

Description	This article describes steps for selecting a previous version of FortiGate to deploy in AWS if needed. By default, the AWS marketplace always offers the latest version of FortiGate.
Scope	FortiOS, AWS.
Solution	All the EC2 instance’s images on AWS come with an image ID which is known as the AMI ID. AMIs are region-specific. This means that even for the exact same FortiOS version and build, AWS maintains a separate AMI in every region. First, it is necessary to find out the AMI ID of the FortiGate version needed. In the AWS console, open the AWS CLI console as below: From the command console, use the following command to check the AMI for FortiOS 6.4.x: aws ec2 describe-images  --region ap-northeast-3  --filters "Name=description,Values=*FortiGate*6.4.*"  --query 'Images[*].{Description:Description,ImageId:ImageId,Architecture:Architecture}' Note: It is possible to change the region value and filter value accordingly to search for other regions and other versions of FortiOS. Each of these regional AMIs has its own unique AMI ID. An AMI ID from one region (e.g., us-east-1) can not be used in another region (e.g., eu-west-1) - it will simply not exist there, and will cause an error if attempted. After running the command, the follwing output will appear:   From the output, note down the AMI ID accordingly. For example, it is necessary to deploy FortiGate 6.4.14 ON DEMAND FortiGate, hence, the AMI ID is 'ami-0b3e7ce7103fbe5fd'. Next, in the AWS console, go to the EC2 page, and choose AMI Images on the left panel: In the AMI Images page, filter the AMI ID gotten from the previous step, remember to change the filter to 'Public Image'. Then choose to launch the instance: Alternatively, use the AMI name:     The rest of the steps will be normal procedures to deploy the EC2 instance. After configuring, it is possible to start deploying the EC2 instance. It will be running on the version according to the AMI ID selected.   In this example, it will be 6.4.14: