[Enhancement]: Add gp3 storage_type support to aws_db_instance

[katdev]

Description

As of November 4(ish), the gp3 storage type is now supported on RDS, but it's not yet supported by the latest version of the AWS provider. Attempting to specify gp3 results in:

│ Error: expected storage_type to be one of [standard gp2 io1], got gp3
│ 
│   with aws_db_instance.db_instance,
│   on .terraform/main.tf line 67, in resource "aws_db_instance" "db_instance":
│   67:   storage_type                        = "gp3"

Please add support to the AWS provider for this storage type, along with support for the advanced settings available with gp3, Provisioned IOPS and Storage throughput.

Affected Resource(s) and/or Data Source(s)

aws_db_instance

Potential Terraform Configuration

resource "aws_db_instance" "default" {
  ...
  allocated_storage    = 10
  storage_type         = "gp3"
  provisioned_iops     = 12000
  storage_throughput   = 500
}

References

Announcement.
User guide.

Would you like to implement a fix?

No, thank you

[github-actions]

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[bschaatsbergen]

Hi @katdev, thanks for raising this issue. I'll pick it up 👍

[bschaatsbergen]

Fixed by @erz4 in #27670 👏

[FouzanAshraf]

The same issue lies in Ansible rds_instance module too. It is not supporting creation of new RDS instance when passing storage type as gp3. Any fixes for that ?

[theintz]

The same issue lies in Ansible rds_instance module too. It is not supporting creation of new RDS instance when passing storage type as gp3. Any fixes for that ?

You should probably ask that question in the Ansible repo :)

[rodrigoechaide]

Hello! What about this issue? Is somebody working on it?

[etiennechabert]

See this PR and comment: #27670 (review)

My understanding is that @gdavison and his team might take over the PR that @erz4 started

[github-actions]

This functionality has been released in v4.45.0 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!

[DanielViglione]

talk about perfect timing! gp3 for rds is exactly what I wanted.

[etiennechabert]

Foremost, thanks a lot for bringing this change that quickly @ewbankkit, and @erz4 as well as everyone involved 👏

Sadly, it seems that there is a bug for existing RDS instances blocking the switch from gp2 to gp3, you will most likely be blocked by this error:

InvalidParameterCombination: You can't specify IOPS or storage throughput for engine postgres and a storage size less than 400

FYI, an issue already exists for this bug: #28160

Maybe you want to give your 👍 there, if this is also a blocker for 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.
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