SSL support in AWS ElastiCache

ElastiCache now supports TLS encryption in transit.

https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/in-transit-encryption.html

This is better suited as a comment, but I don't have enough points.

My company spoke with AWS customer service, and they confirmed it isn't supported for ElastiCache; the sslEnabled option you're referring to is indeed ignored. It's only in there because it's inherited.