Elasticache Serverless implementation with default usage in CI and QA

[feoh]

What are the relevant tickets?

#3562

Description (What does it do?)

Add a serverless Valkey cache to help replace current instance based

How can this be tested?

pulumi up

[Ardiea]

LGTM.

Extra thoughts though. Should this really be its own component resource or should it be an implementation of OLAmazonCacheConfig named OLAmazonServerlessValkeyConfig().

Honestly, though I'm suggesting it, I think I like your implementation better just because the serverless configuration is really SOOO MUCH simpler than traditional elasticache configuration. OLAmazonCacheConfig comes with so much stuff that just isn't needed.

Only other thought is you've created one in the mitxonline stack but you don't actually point anything at it?

[blarghmatey]

This has been applied to the Superset CI stack successfully, as well as verifying that applying it to the production Superset stack does not trigger any changes.

[blarghmatey]

This successfully deploys, but the serverless cache is also using the Redis "Cluster Mode" which means that all applications connecting to it need to be udpated to work with cluster mode, which is a larger body of work.