Ravi Sir's Cards › AWS
Auto Scaling groups
What is a VPC: your own private network inside one AWS Region, example ThreeTierVpc 10.0.0.0/16.
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What this card says
Why do we need it?
If a server dies at night, a new one must start alone.
What is it?
The group keeps desired between min and max.
--min-size 1 --max-size 4
How to do it
Add a TargetTracking policy at CPU 50%.
put-scaling-policy
Example
New version? start-instance-refresh.
MinHealthyPercentage=50