Support GP3 volume type

[sgran]

Support GP3 volume type

I'm submitting a...

• feature request

What is the current behavior?

root_volume_type and a few other configuration parameters affect the sort of EBS volume selected for the root volume for worker nodes. AWS introduced a new volume type, GP3. This new volume type needs a new parameter on the EBS section of the launch configuration, 'throughput'. This new parameter is only valid for GP3 configurations and has a default value of 125.

This will almost certainly have to block on the AWS provider getting support for the new volume type and changing the struct for the EBS volume.

[jayzalowitz]

Yep I tested a deploy and its blocked on validation to even change it to gp3: hashicorp/terraform-provider-aws#16514

[sidprak]

Now that provider support has landed in the launch template resource, I tested this out and gp3 volumes seem to work out of the box with this module. As mentioned above, the throughput setting needs to be added which I've done in #1146.

[sidprak]

Doing some googling, looks like gp3 is not supported in launch configuration yet (maybe not going to be supported at all?) so the support in #1146 is only in launch templates.

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