Support for ACK Controller Compatibility with OpenSearch Serverless Option

[wmashal]

Hi

I'm currently using the OpenSearch ACK controller to create and manage my OpenSearch clusters on AWS. However, I'm considering migrating to the new "OpenSearch Serverless" option for its potential benefits in scalability and cost-efficiency. At this point, the ACK controller is not available to support this transition.

Ideally, I would like to have an ACK controller that supports the OpenSearch Serverless option, enabling seamless migration from my managed cluster to a serverless configuration. Additionally, if there are established best practices for such a migration, I'd appreciate guidance on these

Thanks