ECS EC2 Instances like EKS Bottlerocket

While Bottlerocket is primarily designed and optimized for use with Amazon EKS (Elastic Kubernetes Service), it is also compatible with Amazon ECS (Elastic Container Service) on EC2 instances. However, the specific feature of using prefilled docker images for faster start on autoscaling, as you described for EKS, is not directly mentioned in the context of ECS in the available information.

Bottlerocket can indeed be used with Amazon ECS, offering similar benefits such as improved security, higher uptime, and lower operational costs. When using Bottlerocket with ECS, you can launch Bottlerocket instances that will register with your ECS cluster.

The process of launching a Bottlerocket instance for ECS involves creating a user data file, retrieving the Bottlerocket AMI ID, and then launching the instance using the AWS CLI. After launching, you can verify that the container instance is registered to your ECS cluster.

However, the specific feature of prefilling docker images for faster startup during autoscaling, as you've described for EKS, is not explicitly mentioned for ECS in the available information. This particular optimization technique might be more closely associated with EKS deployments.

If you're looking to optimize container startup times in ECS, you might need to explore other methods or consult with AWS support for the most up-to-date information on whether similar optimizations are available or planned for ECS with Bottlerocket.
Sources
Launching a Bottlerocket instance for Amazon ECS - Amazon Elastic Container Service
Create nodes with optimized Bottlerocket AMIs - Amazon EKS
Reduce container startup time on Amazon EKS with Bottlerocket data volume | Containers