EFS volume in Batch job running on Fargate

Question

Hi,

I'm trying to use an EFS volume in a Batch job running on AWS Fargate. The support for EFS volumes was added in Fargate version 1.4.0 (see [here](https://docs.aws.amazon.com/AmazonECS/latest/developerguide/platform-linux-fargate.html)). In the linked article, it's also stated that using `LATEST` is equivalent to specifying version  number `1.4.0`. However, when I try to specify the `LATEST` as a Fargate platform version in the Batch job definition where I also specify EFS volumes, I get this error:

```
Failed to register job definition
Error: Error executing request, Exception : EFS is supported for Fargate platform version 1.4.0., RequestId: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
```

Specifying an explicit version number `1.4.0` works without problems. If this is a bug, how to report the issue?

Answer

Same for me. In my Fargate tasks, I have `Platform version` empty, so it can get the default value, or I set `1.4.0` because  I had issues with `LATEST` as well.

EFS volume in Batch job running on Fargate

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