AWS CloudFormation now supports blue/green deployments for Amazon ECS

AWS CloudFormation is now integrated with AWS CodeDeploy to allow ECS customers with application or network load balancers to invoke blue/green and canary style deployments when performing application updates. This feature allows customers to configure the incremental traffic migration strategy for their deployments within CloudFormation templates as well as identify CloudWatch alarms to monitor the deployment. Customers using blue/green deployments for application updates will benefit by minimizing interruptions caused by the changes of a new application version. This is accomplished by provisioning and testing the new application version alongside the old version before slowly routing your production traffic. You can get started by referring to our [user guide](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/blue-green.html). To see availability in your regions, visit [AWS global region table](/about-aws/global-infrastructure/regional-product-services/).