Support for EBS Volume Clones

[mattmoyer]

Description

AWS has recently introduced the ability to copy an EBS volume using the CopyVolumes API. I would like to be able to use this API to create EBS volume clones using Terraform.

Affected Resource(s) or Data Source(s)

• aws_ebs_volume

Potential Terraform Configuration

One potential design would be to work this into a new field on the aws_ebs_volume resource:

# Look up the source volume
data "aws_ebs_volume" "source" {
  most_recent = true

  filter {
    name   = "tag:Name"
    values = ["Example"]
  }
}

# Create a clone
resource "aws_ebs_volume" "clone" {
  availability_zone = data.aws_ebs_volume.source.availability_zone // must match AZ of source
  source_volume_id   = data.aws_ebs_volume.source.id
  tags = {
    Name = "ExampleClone"
  }
}

In this example, source_volume_id is the new argument that triggers calling the CopyVolumes API instead of CreateVolume.

References

AWS announcement posts:

• Amazon EBS now supports Volume Clones for instant volume copies
• Introducing Amazon EBS Volume Clones: Create instant copies of your EBS volumes

SDK support:

• AWS Go SDK v2 added support in release-2025-10-14.
• SDK docs: Client.CopyVolumes in github.com/aws/aws-sdk-go-v2/service/ec2@v1.257.2

Would you like to implement the enhancement?

No

[github-actions]

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