in4it/ecs-upgrade repository overview

⁠ECS Upgrade

• Create new Launch Configuration based on existing launch config with latest ECS optimized AMI
• Autoscale to double the instances
• Wait until new instances are healthy and active in ECS
• Drain old ECS instances
• Check target group health
• Autoscale back to instance count before scaling event
• Cleanup

⁠AWS Configuration

• Autoscaling group with termination policies: OldestLaunchConfiguration, OldestInstance

⁠Run

Manual docker command:

docker run -it -e AWS_ACCESS_KEY_ID=... -e AWS_SECRET_ACCESS_KEY=... -e AWS_REGION=... -e ECS_ASG=your-asg -e ECS_CLUSTER=yourcluster in4it/ecs-upgrade

⁠Not implemented

• Rollbacks if something goes wrong