[Enhancement]: Support Placement Group for AWS Batch Compute Environment Resource

[rileyhun]

Description

We would like to do multi-node parallel batch jobs using AWS Batch, and it would be nice to be able to use placement groups with the aws_batch_compute_environment. The advantage of a placement group in this context is that instances are placed in close proximity for improved network performance and reduced latency, and this is necessary for distributed and parallel computing workloads. This is supported when creating a compute environment from the AWS Console, but seems to be missing in the terraform aws provider.

Affected Resource(s) and/or Data Source(s)

• aws_batch_compute_environment

Potential Terraform Configuration

resource "aws_batch_compute_environment" "this" {
  placement_group = aws_placement_group.pg.id
}

References

No response

Would you like to implement a fix?

None

[github-actions]

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[bruceadowns]

I am putting together a PR today on this issue.

The solution will look like:

resource "aws_placement_group" "sample" {
  name     = "sample-placement-group"
  strategy = "cluster"
}

resource "aws_batch_compute_environment" "sample" {
  compute_environment_name = "sample"

  compute_resources {
    instance_role = aws_iam_instance_profile.ecs_instance_role.arn
    instance_type = ["optimal"]

    max_vcpus = 1
    placement_group = aws_placement_group.sample.name
...

[github-actions]

This functionality has been released in v5.6.0 of the Terraform AWS Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!

[github-actions]

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