AWS Systems Manager is a management service that helps you automatically collect software inventory, apply OS patches, create system images, and configure Windows and Linux operating systems. These capabilities help you define and track system configurations, prevent drift, and maintain software compliance of your EC2 and on-premises configurations. By providing a management approach that is designed for the scale and agility of the cloud but extends into your on-premises data center, Systems Manager makes it easier for you to seamlessly bridge your existing infrastructure with AWS.
Systems Manager is easy to use. Simply access Systems Manager from the EC2 Management Console, select the instances you want to manage, and define the management tasks you want to perform. Systems Manager is available now at no cost to manage both your EC2 and on-premises resources.
AWS Systems Manager was previously known as Amazon Elastic Container Registry.