[Doc] Add more thorough explanation os using AWS OpenSearch Service when Fine-grained access control is not enabled

[brianf-aws]

What is needed?

There seems to a gap in our tutorials that involve working with AWS OpenSearch service where a user needs to enable fine grained access control in the managed service so that they can perform actions and be able to follow a tutorial.

What can be done?

We can do two actions. The third one is a managed service task that may take some time to publish

1. Add a separate markdown file that can be used as a comprehensive guide on how a user can enable fine-grained access control.
2. Update the documentation website to include this information
3. Reach out to AWS team to update their website using ml-commons

Any References?

• A slack thread with context of this problem
• This specific tutorial semantic_search_with_openai_embedding_model.md was used when this blocker occurred
• This is the managed service website

[rikkarth]

Specifically in this section was where we spent most of our time figuring out why we couldn't see this panel in AWS OpenSearch Service

It appears that when fine-grained access control is not enabled, this panel does not appear in the Dashboard. This option was disabled by default I believe because after you enable fine-grained access control you can't disable it.

This relationship between security dashboard and fine-grained access control is not really explicit anywhere, we went through a lot of AWS and OpenSearch documentation.

You can find more about fine-grained access control here: https://docs.aws.amazon.com/opensearch-service/latest/developerguide/fgac.html

The markdown tutorial is very well written and we followed all the steps successfully, so I believe adding this extra information to the tutorial and making it more visible for others will surely prove to be a valuable resource for people getting into ml-commons through AWS OpenSearch Service.

Thank you for capturing this issue in this ticket.