Posted On: Mar 3, 2025
Starting today, EC2 Fleet customers can override the Block Device Mapping specified in the Launch Template when creating a new Fleet request. With this release, customers save the effort of creating and associating new Launch Templates with their Fleet requests, if they need to customize the Block Device Mapping for specific Fleet requests but keep rest of the instance requirement configuration the same.
Customers use EC2 Fleet to access wider EC2 capacity across instance types and availability zones within a single request. To provide their EC2 instance configuration information such as Amazon Machine Images, Key pair etc., customers associate a Launch Template with their Fleet requests. Customers can also override the values specified in Launch Template for select parameters while requesting a Fleet. With this release, customers can override Block Device Mapping parameters specified in the Launch Template. With Block Device Mapping, customers can specify additional EBS volumes or instance store volumes to attach to an instance when it's launched, or update the Block Device Mapping specified in the Amazon Machine Image that you use to launch the instances.
The feature is available in the Amazon Web Services China (Beijing) Region, operated by Sinnet, and in the Amazon Web Services China (Ningxia) Region, operated by NWCD. To learn more, refer the API references and EC2 user guide.