ECS CLI Version 0.5.0 Supports Application Load Balancer, EC2 Container Registry, and R4 EC2 Instance Types

The Amazon EC2 Container Service Command Line Interface (ECS CLI) has been updated to version 0.5.0. This update includes support for managing images in the Amazon EC2 Container Registry (ECR), support for existing ELB/ALBs using the CreateService command, as well as supporting the use of R4 EC2 instance types for container clusters.
Quelle: aws.amazon.com