Hacker News Reader

Who calls that a best practice? If you're a very small company, that might be fine. With thousands of employees and tens or hundreds of applications, you'll run into serious problems if you want to use e.g. VPC peering for shared services. You'll also run into major cost issues if for example you have per-VPC or per-account commercial appliances.

View on HN

AWS uses this isolation pattern internally for just about everything, for what it's worth.

Not the "per region" part, that just seems silly.

That's interesting, because their consultants discourage it for their customers. For companies that want to keep most of their traffic internal, I don't think it's a working model. I suppose Amazon's internally used services are the same ones they expose to customers, so it probably works fine.

Reply on news.ycombinator.com