minimumHealthyPercent

For a service that uses the rolling update (ECS) deployment type, the minimum number of tasks in a service that must remain in the RUNNING state during a deployment, and while any container instances are in the DRAINING state if the service contains tasks using the EC2 launch type. Expressed as a percentage of the desired number of tasks. The default value is 100%.

For a service that uses the blue/green (CODE_DEPLOY) or EXTERNAL deployment types and tasks that use the EC2 launch type, the minimum number of the tasks in the service that remain in the RUNNING state while the container instances are in the DRAINING state.

For the Fargate launch type, the minimum healthy percent value is not used.