Following OPENSEARCH Controls are implemented:

1. aws-opensearch-m-1: OpenSearch cluster should be enabled with Customer Managed Key(CMK) and configure dedicated key for OpenSearch
2. aws-opensearch-m-2: OpenSearch services should be deployed in VPC
3. aws-opensearch-m-3: Enable node to node encryption for OpenSearch services
4. aws-opensearch-m-4: Enable Audit and Error logs for OpenSearch service
5. aws-opensearch-r-1: Enable advanced security options on Opensearch service for fine-grained controls
6. aws-opensearch-r-2: Encrypt the traffic on OpenSearch domain by enabling https/tls