Find the documentation here: https://templates.cloudonaut.io/en/stable/ec2/
To update the region map execute the following lines in your terminal:
for region in $(aws ec2 describe-regions --query "Regions[].RegionName" --output text); do ami=$(aws --region $region ec2 describe-images --filters "Name=name,Values=amzn2-ami-hvm-2.0.20200722.0-x86_64-gp2" --query "Images[0].ImageId" --output "text"); printf "'$region':\n AMI: '$ami'\n"; done