From 0995f6153d692c43b1150b8089408c1473d310ef Mon Sep 17 00:00:00 2001
From: "Mark F. Garner" <52957846+MarkFGarner@users.noreply.github.com>
Date: Mon, 8 Mar 2021 15:59:47 +0000
Subject: [PATCH] add lifecycle rules to autoscaling group (#30)

resolves target_group issue when using aws_autoscaling_group with aws_autoscaling_attachment

recommend by Hashicorp:
https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/autoscaling_attachment

Co-authored-by: mark.garner1 <mark.garner1@engineering.digital.dwp.gov.uk>
---
 main.tf | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/main.tf b/main.tf
index 14cfe0e..511f2a5 100644
--- a/main.tf
+++ b/main.tf
@@ -144,6 +144,10 @@ resource "aws_autoscaling_group" "kong" {
   min_size                  = var.asg_min_size
   target_group_arns         = var.target_group_arns
 
+  lifecycle {
+    ignore_changes = [load_balancers, target_group_arns]
+  }
+
   dynamic "tag" {
     for_each = local.tags
     content {