Describe the issue:
OpenSearch .Net client want to connect via Option 5 of OpenSearchClient cloudid, apikeyAuthenticationCredentials, I find no CloudConnectionPool documentation explaining how to get cloudid…
The CloudConnectionPool is a holdover from when OpenSearch was forked from Elasticsearch and relates to their cloud offering. Similarly OpenSearch does not yet support API key authentication.
The primary methods I know of for connecting to the managed Amazon OpenSearch Service is with a SingleNodeConnectionPool and either basic auth or with IAM credentials and AwsSigV4 signing. I believe client certificate auth is also possible, but have not used it myself.