We have the Docker container running in the ECS cluster, so now, let's walk through a scenario where both the container and the service need to be updated. Usually, this happens in a continuous delivery model, where we have two production environments; the blue environment is the older version of the service and is currently live, to handle users' requests. The new release environment is termed the green environment, which is in the final stage and will be handling future incoming requests from users as we switch from the older version to the newer one.

The blue-green deployment helps to give a rapid rollback. We can switch the router to the blue environment if we face any issues in the latest green environment. Now, as the green environment is live and handling all the requests, the blue environment can be used as a staging environment for the final testing step of the next deployment. This scenario can easily be achieved with the help of Task...