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by sofixa
1687 days ago
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But what are the costs and scalability? EC2s in many regions + Global Accelerator is a completely different pricing model to pay as you go serverless (and, depending on your use case and usage patterns, more or less expensive), and scaling is entirely up to you. It's cool to optimise for latency, but it would have been nice to have resulting costs and downsides (scaling). |
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3x t3a.small @ $13.72/month. = $41.16/month.
A 3 region single node web app could be done for under $60, dropping to around $43 with instance reservations. With a config this small there is no need for regional LBs, and even if you have multiple instances per region, GA has configurable internal flow hashing.
The dominant cost for any real site will likely continue to be bandwidth. GA pushes egress pricing up substantially in many cases, from 1.5c/GiB to as much as 10.5c/GiB, but this is unlikely to be a concern unless you're serving heavy images or video.
Autoscaling works the same as anywhere else. You can use spot instances, or even front ALBs with GA and build your whole app out of Lambda functions (although this would assuredly completely negate any latency benefit gained by using GA in the first place!).