amazon web services - How to set healthcheck rules for 100+ target groups in AWS ALB

Question

We are migrating to AWS. The basic ingress flow is: ALB -> nginx-ingress -> pods.

From the AWS doc that an ALB can only have 100 target groups. However, we do have a (business critical) domain that routes by paths, where each path maps to a micro-service. The number of path is already over 100, and product team plans to add more in the future.

With a nginx-ingress behind, we can successfully route by paths without issue, but we are stuck at the 100 target group limitation that we are forced to perform healthcheck on a subset of services. We know the 100 target group is a soft limit, but foreseeing more paths are coming, we want to find a more scalable solution.

Is there any suggested workaround?

Answer 1

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