AWS RoboMaker, a service that makes it easy to develop, simulate, and deploy robotics applications, now supports conditional over-the-air (OTA) deployment for fleet management. This new feature allows developers to specify a pre-check condition during deployment so that you can have more granular control over the deployment process. For example, you can specify a condition to be a certain level of battery. The deployment will only be triggered if the battery level on a robot meets the specified condition.  

from Recent Announcements https://aws.amazon.com/about-aws/whats-new/2019/11/aws-robomaker-now-supports-conditional-over-the-air-deployment/