AWS Batch support for EXTERNAL ECS container instances (ECS Anywhere)

Hey, I created an unmanaged AWS Batch compute environment and updated its underlying ECS cluster by registering a container instance with ECS Anywhere, but I just can't run any job on this external container instance. The job definition in AWS Batch supports only platform capabilities EC2 and FARGATE, but EXTERNAL is not available (docs). Therefore AWS Batch submits a RunTask request to ECS with launchType of EC2 or FARGATE only, and my EXTERNAL container instance is ignored (this is visible in CloudTrail). The job just hangs in RUNNABLE state.

Do you have any workarounds? Could you clarify if ECS Anywhere support is anywhere in AWS Batch team backlog?

References

• Related GitHub issue.