[Bug]: aws_lightsail_instance incorrectly requires instances to start with an alphabetical character

[danielcotton]

Terraform Core Version

1.3.6

AWS Provider Version

4.57.1

Affected Resource(s)

• aws_lightsail_instance

Expected Behavior

Instance 123-test should be created

Actual Behavior

Instance is not created. Provider produces the output below.

Relevant Error/Panic Output Snippet

╷
│ Error: invalid value for name (must begin with an alphabetic character)
│ 
│   with aws_lightsail_instance.instance,
│   on main.tf line 15, in resource "aws_lightsail_instance" "instance":
│   15:   name              = "123-test"
│

Terraform Configuration Files

terraform {
  required_providers {
    aws = {
      source  = "hashicorp/aws"
      version = "~> 3.0"
    }
  }
}

provider "aws" {
  region = "ap-southeast-2"
}

resource "aws_lightsail_instance" "instance" {
  name              = "123-test"
  availability_zone = "ap-southeast-2a"
  blueprint_id      = "centos_7_2009_01"
  bundle_id         = "medium_2_2"
}

Steps to Reproduce

1. terraform validate

Debug Output

No response

Panic Output

n/a

Important Factoids

Creating an instance with the above name works in both the Lightsail web management interface and in aws-cli

References

• [https://docs.aws.amazon.com/lightsail/2016-11-28/api-reference/API_CreateInstances.html] - Note there is no requirement mentioned for instances to start with an alphabetic character

Would you like to implement a fix?

Yes

[github-actions]

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[github-actions]

This functionality has been released in v4.59.0 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]

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