AWS CodeDeploy now provides zonal deployment for Amazon EC2

AWS CodeDeploy now provides the ability to deploy your application one Availability Zone (AZ) at a time. Known as zonal deployment, it isolates the blast radius of any adverse in-place application deployments to a single AZ without impacting other AZs within an AWS Region. By using zonal deployments for EC2, your application updates will deploy to a single AZ at a time. If the deployment of an AZ is successful, CodeDeploy will monitor your application and revert any regressions with CodeDeploy's [rollback protection](https://docs.aws.amazon.com/codedeploy/latest/userguide/deployments-rollback-and-redeploy.html). To get started with zonal application deployments and receive additional protection for multi-AZ deployments, you only need to enable the configuration in your CodeDeploy [deployment configuration](https://docs.aws.amazon.com/codedeploy/latest/APIReference/API%5FZonalConfig.html). Support for EC2 in-place zonal deployment is available in all [AWS Regions](https://aws.amazon.com/about-aws/global-infrastructure/regional-product-services/) where AWS CodeDeploy is available. To learn more, see [Zonal Deployment](https://docs.aws.amazon.com/codedeploy/latest/APIReference/API%5FZonalConfig.html) in the AWS CodeDeploy Developer Guide.