Amazon ECS - Persistent data between instances

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Sultanen picture Sultanen · Jan 27, 2016 · Viewed 7k times · Source

How would you best handle persistent data between instances with a load-balanced service in Amazon ECS? Data only containers will not work and neither will the volumes you can specify in the tasks, they will both only persist on the instance itself. I have been trying to read up on attaching a EBS upon instance creation with User Data in Launch Configuration but i had no luck there.

Answer

Wouter de Winter picture Wouter de Winter · Dec 6, 2016

You can use Amazon EFS to share a filesystem across ECS containers and instances. EFS is based on NFS so it can be mounted at multiple host instances at the same time. This allows cluster scheduling and scaling to work as intended. See a tutorial for persisting MySQL data this way here:

https://aws.amazon.com/blogs/compute/using-amazon-efs-to-persist-data-from-amazon-ecs-containers/

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