Use ListDomainNames com um AWS SDK ou CLI

import software.amazon.awssdk.auth.credentials.ProfileCredentialsProvider;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.opensearch.OpenSearchClient;
import software.amazon.awssdk.services.opensearch.model.DomainInfo;
import software.amazon.awssdk.services.opensearch.model.ListDomainNamesRequest;
import software.amazon.awssdk.services.opensearch.model.ListDomainNamesResponse;
import software.amazon.awssdk.services.opensearch.model.OpenSearchException;

import java.util.List;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class ListDomainNames {
    public static void main(String[] args) {
        Region region = Region.US_EAST_1;
        OpenSearchClient searchClient = OpenSearchClient.builder()
                .region(region)
                .credentialsProvider(ProfileCredentialsProvider.create())
                .build();
        listAllDomains(searchClient);
        System.out.println("Done");
    }

    public static void listAllDomains(OpenSearchClient searchClient) {
        try {
            ListDomainNamesRequest namesRequest = ListDomainNamesRequest.builder()
                    .engineType("OpenSearch")
                    .build();

            ListDomainNamesResponse response = searchClient.listDomainNames(namesRequest);
            List<DomainInfo> domainInfoList = response.domainNames();
            for (DomainInfo domain : domainInfoList)
                System.out.println("Domain name is " + domain.domainName());

        } catch (OpenSearchException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }
    }
}

suspend fun listAllDomains() {
    OpenSearchClient { region = "us-east-1" }.use { searchClient ->
        val response: ListDomainNamesResponse = searchClient.listDomainNames(ListDomainNamesRequest {})
        response.domainNames?.forEach { domain ->
            println("Domain name is " + domain.domainName)
        }
    }
}