How to Handle 1,000's of SSL Certificates

Question

Our platform is a multi-tenant content management system with thousands of customers. They all have their own domains and require SSL Certificates. We increased our quota limits to 100 certificates per ALB and 50 entries per certificate. This means we can get 5,000 entries or 2,500 domains (since we need 2 entries per domain - domain + wildcard for www). This is great, but we're expecting to onboard 10,000, 20,000, maybe 50,000+ new customers/domains over the next 6-12 months. What is the best solution for handling this? We could add a new ALB every time we max out our SSL limits, but is there a better solution? Thanks!

Answer

Putting the SA hat on here... Whats the requirement and reason for them to have their own domain?

Have you thought about a different way to deliver the solution so that this overhead isnt needed?

Answer

Take a look at Nginx. You'd switch from a ALB to NLB pointed to that tier, and it can be configured with an unlimited number of certificates. After it handles SSL it'd forward the request on to your application tier for processing.

How to Handle 1,000's of SSL Certificates

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