Is there a way to have a resource wait for a particular log message to appear in another resource's output?

[baynezy]

Background

I am using Localstack to enable emulating AWS services in my local environment. Unfortunately, WaitFor() is getting triggered before the custom resources are deployed into LocalStack, which means that my application is throwing an exception.

Workarounds

Currently, I am just forcing a 20-second delay, which resolves the problem, but it is unsatisfactory. As it is often longer than required, but if I reduce it to 10 seconds, it occasionally fails.

Goal

The LocalStack team use the approach of tailing the LocalStack logs until they see the Ready. in the log output. Is there a way in Aspire to tail the logs of another resource and wait on that?