Чтобы узнать #instance_type из #metadata на самой #ec2 виртуалке:
wget -T 10 -O- http://169.254.169.254/latest/meta-data/instance-type 2>/dev/nullhttps://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/ec2-instance-metadata.html
Amazon
Instance metadata and user data - Amazon Elastic Compute Cloud
Access instance metadata, dynamic data, and user data to configure and manage a running Amazon EC2 instance.