amazon web services - AWS ECS run latest task definition

Question

I am trying to have run the lastest task definition image built from GitHub deployment (CD). Seems like on AWS it creates a task definition for example "task-api:1", "task-api:2", on was my cluster is still running task-api: 1 even though there is the latest task as a new image has been built. So far I have to manually stop the old one and start a new one . How can I have it automated?

question from:https://stackoverflow.com/questions/65645567/aws-ecs-run-latest-task-definition

Answer 1

You must wrap your tasks in a service and use rolling updates for automated deployments.

When the rolling update (ECS) deployment type is used for your service, when a new service deployment is started the Amazon ECS service scheduler replaces the currently running tasks with new tasks.

Read: https://docs.aws.amazon.com/AmazonECS/latest/developerguide/deployment-type-ecs.html

This is DevOps, so you need a CI/CD pipeline that will do the rolling updates for you. Look at CodeBuild, CodeDeploy and CodePipeline (and CodeCommit if you integrate your code repository in AWS with your CI/CD)

Read: https://docs.aws.amazon.com/codepipeline/latest/userguide/tutorials-ecs-ecr-codedeploy.html

This is a complex topic, but it pays off in the end.