To change the load balancer name, the container name, or the container port associated with a service load balancer configuration, you must create a new service.
Amazon ECS does not automatically update the security groups associated with Elastic Load Balancing load balancers or Amazon ECS container instances.
If your service uses a load balancer, the load balancer configuration defined for your service when it was created cannot be changed.
If you update the task definition for the service, the container name and container port that were specified when the service was created must remain in the task definition.
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The new tasks launched by the deployment pull the current image/tag combination from your repository when they start.I checked all the normal things, like cell type, auto calculation, etc...What I found to be the problem was the formula and the fact that I surrounded numbers with quotes.The service scheduler uses the minimum healthy percent and maximum percent parameters (in the service's deployment configuration) to determine the deployment strategy.), you do not need to create a new revision of your task definition.