AWS Systems Manager Automation now supports targeting all instances in the account and Region

Automation is a feature in Systems Manager. Systems Manager enables visibility and control of your cloud and on-premises infrastructure. It simplifies resource and application management, shortens the time to detect and resolve operational problems, and makes it easier to operate and manage your infrastructure securely at scale.  



https://aws.amazon.com/about-aws/whats-new/2019/12/aws-systems-manager-automation-now-supports-targeting-all-instances-in-the-account-and-region/