1. Creates a new revision from the current task definition of the service. If`--image-name` and`--image-tag` are provided, it replaces the image tag.

1. Runs the`update-service` command with the new task definition revision.

1. Waits for the deployment to complete.

* Deployment is successfully completed if`runningCount == desiredCount` for PRIMARY deployment - see`aws ecs describe-service`

* Deployment is successfully completed if`runningCount == desiredCount` for PRIMARY deployment - see`aws ecs describe-services`

* The`cfecs-update` command exits with a timeout error if after --timeout (default = 900s)`runningCount` does not equal`desiredCount`

* The`cfecs-update` exits with an error if --max-failed (default = 2) or more ECS tasks were stopped with error for the task definition that you are deploying. ECS continuously retries failed tasks.