Ignore manually removed ec2 instances from alb

Terraform Providers AWS
1

Hi All,

How can we ignore the manually removed ec2 instances from load balancer attachment?. Is there any options that can be added to ignore changes life cycle?.

resource "aws_lb_target_group_attachment" "attachment" {
  count           = length(aws_instance.instancedos)
  target_group_arn = aws_alb_target_group.tg.arn
  target_id        = aws_instance.instancedos[count.index].id
  port             = 8080
}

  + resource "aws_lb_target_group_attachment" "attachment" {
      + id               = (known after apply)
      + port             = 8080
      + target_group_arn = "xxxx"
      + target_id        = "i-xxx"
    }