Add AWS Lightsail Load Balancer Attachment Support

[akonrath]

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Description

As described here, Lightsail supports the use of a load balancer. I have already begun initial work to get this implemented as part of #11049 (load balancer creation, PR submitted) and this is intended to attach a load balancer to instances. This is being opened for visibility, updates, and tracking.

New or Affected Resource(s)

Proposed resource name is:

• aws_lightsail_load_balancer_attachment

Potential Terraform Configuration

resource "aws_lightsail_load_balancer_attachment" "example_load_balancer_attachment_name" {
  load_balancer_name = "test"
  instance_names      = ["instance-1", "instance-2"]
}

References

• AWS Lightsail Load Balancer Reference
• AWS Lightsail AttachInstancesToLoadBalancer API
• AWS Lightsail DetachInstancesFromLoadBalancer API

[brittandeyoung]

For Awareness I have begun work on creating a separate AWS lightsail provider in order to help with Speeding up contributions and to give it dedicated attention.

The Github repo is located here: https://github.com/DeYoungTech/terraform-provider-awslightsail

The provider and documentation is published here: https://registry.terraform.io/providers/DeYoungTech/awslightsail/latest

With the most recent version, the provider has moved past resource parity for lightsail services and It includes this resource.

If you want to start using this resource now, feel free to check it out and provide feedback.

[github-actions]

This functionality has been released in v4.36.0 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.
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