Support for aws_volume_attachment

[tiagomlalves]

Is your request related to a new offering from AWS?

Is this functionality available in the AWS provider for Terraform? See CHANGELOG.md, too.

• Yes ✅: earliest reference was found in version 1.7.0

Is your request related to a problem? Please describe.

I'm creating an immutable server that stores large volume of data. For that, I create an EC2 instance with ephemeral storage 8Gb, and a permanent storage 100Gb. I would like to define the EC2 instance to use aws_volume_attachment

Describe the solution you'd like.

When using Terragrunt, I would like to specify the following:

terraform {
    source = "tfr:///terraform-aws-modules/ec2-instance/aws//?version=4.0.0"
}

...

dependency "storage" {
    config_path = "PATH_TO_EBS_STORAGE"
}

inputs = {
    ami           = ...
    instance_type = ...

    ebs_volume_attachment = [
        {
            device_name ="/dev/xvdb"
            volume_id = dependency.storage.outputs.id
        }
    ]

    ...
}

...

Describe alternatives you've considered.

Currently I've copied and paste this repo code that defines an aws_instance resource to main.tf and and variables.tf files, with some modifications.

Additional context

I would be happy to contribute with this change if you think this could help others

[schniber]

Hello,

Did you have a look at this ? => https://github.com/terraform-aws-modules/terraform-aws-ec2-instance/blob/master/examples/volume-attachment/main.tf

Hope this helps.

Bests.

[tiagomlalves]

@schniber Thanks for the reply. Yes, I had seen that. That example shows how to create an EC2 instance, volume, and volume_attachment. My proposal is that the definition of the volume_attachment resource could be done by the ec2 module directly. In Terraform, it's not a big deal to do as in the example. In Terragrunt, however, it would make the code simpler.

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