[Bug]: aws_autoscaling_group unable to handle change in launch template name

[dhrkumar]

Terraform Core Version

1.3.6

AWS Provider Version

5.8.0

Affected Resource(s)

• aws_autoscaling_group

Expected Behavior

Auto Scaling group should be update with new launch template name.

Actual Behavior

Update Auto Scaling group was tried with old launch template id.

Relevant Error/Panic Output Snippet

│ Error: updating Auto Scaling Group (terraform-20231012132653541600000001): ValidationError: The specified launch template, with template ID lt-08ef3d2659a169d64, does not exist.
│       status code: 400, request id: 5a5130ef-0776-4fa8-aecb-fc5d85c0b03f

Terraform Configuration Files

resource "aws_iam_role" "role" {
  assume_role_policy = jsonencode({
    Version   = "2012-10-17"
    Statement = [
      {
        Action    = "sts:AssumeRole"
        Effect    = "Allow"
        Principal = {
          Service = "ec2.amazonaws.com"
        }
      },
    ]
  })
  name = "launch-template-ec2-role"
  path = "/ec2/instance/"
}
resource "aws_iam_instance_profile" "instance_profile" {
  name = "ec2-instance-profile"
  path = "/ec2/instance/"
  role = aws_iam_role.role.name
}

resource "aws_launch_template" "lt" {
  description             = "Launch template for ec2"
  image_id                = "ami-06ca3ca175f37dd66"
  instance_type           = "t3.nano"
  name                    = "ec2-linux"
  iam_instance_profile {
    arn = aws_iam_instance_profile.instance_profile.arn
  }
}

resource "aws_autoscaling_group" "asg" {
  launch_template {
    name = aws_launch_template.lt.name
    version = "$Latest"
  }
  max_size = 1
  min_size = 1
  availability_zones = ["us-east-1a"]
}

Steps to Reproduce

1. Apply the configuration
2. Change launch template name and apply the update configuration

Debug Output

No response

Panic Output

No response

Important Factoids

No response

References

No response

Would you like to implement a fix?

Yes

[github-actions]

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[github-actions]

This functionality has been released in v5.23.0 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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