Amazon ECS now supports built-in Linear and Canary deployments

Amazon ECS Deployment Strategies

Amazon ECS now supports linear and canary deployment strategies, providing more flexibility and control for deploying containerized applications. These strategies complement ECS built-in blue/green deployments, allowing you to choose the traffic shifting approach that best matches your application's risk profile and validation requirements.

Linear Deployments

With linear deployments, you can gradually shift traffic from your current service revision to the new revision in equal percentage increments over a specified time period. Configure the step percentage and set a step bake time to wait between each traffic shift for monitoring and validation.

Canary Deployments

With canary deployments, route a small percentage of production traffic to your new service revision while the majority remains on the current stable version. Set a canary bake time to monitor the new revision's performance, after which ECS shifts the remaining traffic to the new revision.

What to do

• Use linear and canary deployment strategies for new and existing Amazon ECS services that use ALB or ECS Service Connect.
• Configure deployment lifecycle hooks for custom validation steps.
• Use Amazon CloudWatch alarms to automatically detect failures and trigger rollbacks.

Source: AWS release notes

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