Gradual deployments in Amazon ECS with linear and canary strategies

This article explains how to implement linear and canary deployment strategies in Amazon ECS for safer application updates with automatic rollback capabilities.

• Linear deployments shift traffic in equal increments with configurable bake time between steps
• Canary deployments route small traffic percentage to new version for extended monitoring before full rollout
• Both strategies use CloudWatch alarms for automated failure detection and rollback
• Lifecycle hooks enable custom validation logic at specific deployment points
• Bake time configuration allows instant rollback by shifting traffic without redeploying tasks
• Four deployment strategies available: rolling, blue/green, linear, and canary
• Detailed walkthroughs provided for configuring linear and canary strategies with AWS CLI
• Best practices include two-tier alarm configuration and bake time guidelines based on risk level

Amazon ECS now provides native gradual rollout support with linear and canary strategies, enabling safer deployments with automated safety mechanisms and fine-grained traffic control.