Add ability to allocate dedicated hosts for VMs

[paultyng]

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Description

Add ability to allocate dedicated hosts for VMs.

API Methods: AllocateHosts, ReleaseHosts, ModifyHosts, DescribeHosts.

(Note that these methods seem to work in aggregate, not sure if they can easily be unwound to a singular resource).

New or Affected Resource(s)

• aws_ec2_dedicated_host

Potential Terraform Configuration

resource "aws_ec2_dedicated_host" "example" {
  auto_placement = ""
  availability_zone = ""
  host_recovery = ""
  instance_type = ""
  tags = {}
}

data "aws_ec2_dedicated_host" "example" {
  filters {}

  tags = {}
}

References

• Support for EC2 Dedicated Hosts terraform#4034

[hotdawg789]

Perfect timing @paultyng . I just got done writing some boto3 to support this in my build pipeline... having it in terraform would be ideal, i forgot life without TFSTATE

[rpomykala]

My PR #10817 is ready for review, let me know if there's any way I can help further with getting this functionality added!

[marcincuber]

Just want to add that this new resource would be mega useful to have as Mac instances are now available. Mac instances require dedicated host of type mac1.metal.

Otherwise we will have to stick to using CLI:

aws ec2 allocate-hosts --instance-type mac1.metal \
  --availability-zone eu-west-1a --auto-placement on \
  --quantity 1 --region eu-west-1

[jcollado]

@marcincuber As a workaround, note that you can call cloudformation from terraform:

resource "aws_cloudformation_stack" "dedicated_host" {
  name = "dedicated-host"
  template_body = jsonencode(
    {
      Description = "Dedicated host"
      Resources = {
        Host = {
          Type = "AWS::EC2::Host"
          Properties = {
            AvailabilityZone = <availability_zone>
            InstanceType     = <instance_type>
          }
        }
      }
      Outputs = {
        HostId = {
          Description = "Dedicated Host ID"
          Value = {
            Ref = "Host"
          }
        }
      }
    }
  )
  tags = <tags>
}

resource "aws_instance" "mac" {
  ...
  host_id                = aws_cloudformation_stack.dedicated_host.outputs.HostId
  ...
}

This is actually what this module from the registry does:
https://registry.terraform.io/modules/DanielRDias/dedicated-host/aws/latest

[scottmalkie]

Hello! Is there anything we can do to help accelerate this work? It looks like there is a PR waiting to be merged that adds this functionality.

[github-actions]

This functionality has been released in v3.61.0 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.