I am going to move a very big wordpress website (in terms of DB) to AWS. And I would like to understand the autoscaling triggers in order to find the best balance between costs and performance.
Are there best practices about how to configure autoscalling and what each one of them actually means?
Should I scale out based on CPU? NetworkOut? Disk I/O? Is there something automatic which can decide whether the system under load?
Did not find nothing useful in AWS docs.