maximumPercent

For a service that uses the rolling update (ECS) deployment type, the maximum number of tasks in a service that are allowed in the RUNNING or PENDING state during a deployment, and for tasks that use the EC2 launch type, when any container instances are in the DRAINING state. Provided as a percentage of the desired number of tasks. The default value is 200%.

For a service that uses the blue/green (CODE_DEPLOY) or EXTERNAL deployment types, and tasks that use the EC2 launch type, the maximum number of 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 maximum percent value is not used.