Creating auto scaling group across different purchase options

Question

 I am using different types of instances. I have on-demand and spot instances currently active serving different purposes. But lately, the traffic of my website is fluctuating and I want to assign auto-scaling groups.

Is it possible to create a single auto scaling group to scale instances across different purchase options?

Answer 1

Yes, you create a single auto scaling group to scale instances across different purchase options. This is from the AWS Documentation:

Yes. You can provision and automatically scale EC2 capacity across different EC2 instance types, Availability Zones, and On-Demand, RIs and Spot purchase options in a single Auto Scaling Group. You have the option to define the desired split between On-Demand and Spot capacity, select which instance types work for your application, and specify preference for how EC2 Auto Scaling should distribute the ASG capacity within each purchasing model.