Separate OpenSearch instance selection from the "Encryption" parameter

[dthvt]

Is your feature request related to a problem? Please describe.

Separate OpenSearch instance selection from the "Encryption" parameter.

Describe the feature you'd like

A new parameter "OpenSearchInstanceType" or the like that allows selection of OpenSearch instance types independent of Encryption.

The "Encryption" parameter should still control whether the OpenSearch domain is encrypted.

Additional context

Modern OpenSearch instance types all support encryption at rest, and there's no reason I shouldn't be able to encrypt data a rest to comply with corporate policies while running a smaller-than-production sized domain.

[jangidms]

Hi @dthvt
Thank you for reporting this. We are looking into this and will update after analysis

[jangidms]

Hi @dthvt
Thank you for your contribution. We are planning to include this in upcoming release.
We'll keep you updated on progress

[jangidms]

Hi @dthvt
This change has been incorporated in release v5.5.0
Thanks for your contribution