Implement support for time based retention policies in DLM

[civ0]

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Description

AWS DLM supports time based retention policies since end of November 2019: https://aws.amazon.com/about-aws/whats-new/2019/11/data-lifecycle-manager-supports-time-based-retention-policies/

This feature is currently not supported by the Terraform AWS Provider.

New or Affected Resource(s)

• aws/resource_aws_dlm_lifecycle_policy.go

Potential Terraform Configuration

retain_rule {
  type = "Age"
  interval = 7
  interval_unit = "Days"
}

[aviau]

This would be really nice!

The count-base retention is much more complicated to manage, for example when you delete disks and the snapshots remain forever because the count stops growing.

[NelsonJeppesen]

... for example when you delete disks and the snapshots remain forever because the count stops growing.

This is the exact issue I've run into

[breathingdust]

Hi all 👋 Just letting you know that this is issue is featured on this quarters roadmap. If a PR exists to close the issue a maintainer will review and either make changes directly, or work with the original author to get the contribution merged. If you have written a PR to resolve the issue please ensure the "Allow edits from maintainers" box is checked. Thanks for your patience and we are looking forward to getting this merged soon!

[github-actions]

This functionality has been released in v4.9.0 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]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.
If you have found a problem that seems similar to this, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.