Provide an output for the eks-managed-node-group launch template name

[romogo17]

Background

Currently, within the eks-managed-node-group submodule, there are output variables for getting the launch template id, arn and latest_version — but not the launch template name

terraform-aws-eks/modules/eks-managed-node-group/outputs.tf

Lines 5 to 19 in c0f14fb

	output "launch_template_id" {
	description = "The ID of the launch template"
	value = try(aws_launch_template.this[0].id, "")
	}
	output "launch_template_arn" {
	description = "The ARN of the launch template"
	value = try(aws_launch_template.this[0].arn, "")
	}
	output "launch_template_latest_version" {
	description = "The latest version of the launch template"
	value = try(aws_launch_template.this[0].latest_version, "")
	}

When we use a prefix for the launch template name, a portion of the resulting name will not be known beforehand, which makes extracting the final name a bit difficult.

terraform-aws-eks/modules/eks-managed-node-group/main.tf

Lines 45 to 49 in c0f14fb

	resource "aws_launch_template" "this" {
	count = var.create && var.create_launch_template ? 1 : 0
	name = var.launch_template_use_name_prefix ? null : local.launch_template_name_int
	name_prefix = var.launch_template_use_name_prefix ? "${local.launch_template_name_int}-" : null

Describe the solution you'd like.

Adding another output for the launch template name

output "launch_template_name" {
  description = "The name of the launch template"
  value       = try(aws_launch_template.this[0].name, "")
}

[antonbabenko]

This issue has been resolved in version 18.28.0 🎉

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