[DOC] Document a new SigV4 authentication type in Dashboards Multiple Datasource

[zhongnansu]

What do you want to do?

• Request a change to existing documentation
• Add new documentation
• Report a technical problem with the documentation
• Other

Tell us about your request. Provide a summary of the request and all versions that are affected.
Currently, OSD with multiple data source supports 2 types of authentication method. 1) no_auth 2) Username&Password. We are working on adding a new auth type "SigV4" , that can enable OSD to connect to domains created from AWS managed OpenSearch with resourced-based IAM policy.

The development is still in progress. We are targeting 2.6 release

What other resources are available? Provide links to related issues, POCs, steps for testing, etc.

• Current doc about multiple datasource feature: https://opensearch.org/docs/latest/dashboards/discover/multi-data-sources/
• Meta issue & poc: [MD][Meta] Support SigV4 auth types for data source OpenSearch-Dashboards#2110
• implementation plan: [MD] Support connection to AWS OpenSearch domain with user based Sigv4 OpenSearch-Dashboards#2921

[hdhalter]

Hi Melissa, assigning this to you for now since it is dashboards. We can discuss further. Thanks!

[hdhalter]

Reassigning to @cwillum

[hdhalter]

See opensearch-project/OpenSearch-Dashboards#3058 for a video of Support SigV4 as a new auth type of datasource

[cwillum]

@hdhalter Thanks for adding the reference. Looks like it will be helpful.