[AWS] 17-5. Software updates offloading

- We have an application running on EC2, that distributes software updates once in a while

- When a new software update is out, we get a lot of request and the content is distributed in mass over the network. It's very costly

- We don't want to change our application, but want to optimize our cost and CPU, how can we do it?

 

[ Our application current state ]

ELB + ASG , running on multi AZ

 

[ Easy way to fix things : Using Amazon CloudFront ]

Why CloudFront?

- No changes to architecture

- Will cache software update files at the edge

- Software update files are not dynamic, they're static (never changing)

- Our EC2 instances aren't serverless

- But CloudFront is, and will scale for us

- Our ASG will not scale as much, and we'll save tremendously in EC2

- We'll also save in availability, network bandwidth cost, etc

- Easy way to make an existing applicaition more scalable and cheaper