At AWS, you can choose to deploy and manage the ELK stack yourself on EC2. But, scaling up and down to meet your business requirements or achieving security and compliance is a challenge with the self-managed option. If you prefer that your developers or DevOps engineers spend their time building innovative applications or managing operational tasks such as deployment, upgrades, software installation and patching, backups, and monitoring, OpenSearch Service is a fully managed open-source alternative that makes it easier to deploy, operate, and scale OpenSearch clusters securely and cost-effectively on AWS.