AWS ECS tasks running on EC2 instances face weak task-level isolation, leading to potential security risks like credential theft. The article highlights the importance of hardening configurations, particularly by restricting access to the EC2 Instance Metadata Service (IMDS), and discusses various networking modes and methods to effectively block IMDS access for ECS tasks.

Migrating from AWS CodeDeploy to Amazon ECS for blue/green deployments offers organizations enhanced capabilities such as service discovery options, headless service support, and improved operational features. The article outlines key considerations for migration, including differences in API and console functionalities, and details the implementation process for ECS blue/green deployments compared to CodeDeploy. Organizations are encouraged to assess their deployment strategies and configurations to leverage the benefits of ECS blue/green deployments effectively.