From 23df9d455bc2647bfb905f479f01d5e89507e8de Mon Sep 17 00:00:00 2001
From: Hexeong <123macanic@naver.com>
Date: Sun, 16 Aug 2026 16:37:11 +0900
Subject: [PATCH] =?UTF-8?q?refactor:=20DB=20EC2=20AMI=20=EA=B0=B1=EC=8B=A0?=
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- 운영 중인 DB EC2가 AMI 변경만으로 재생성되지 않도록 lifecycle ignore_changes에 ami 추가
- API EC2와 동일한 방식으로 통일

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
---
 modules/app_stack/db_ec2.tf | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/modules/app_stack/db_ec2.tf b/modules/app_stack/db_ec2.tf
index 00202e2..cac27bb 100644
--- a/modules/app_stack/db_ec2.tf
+++ b/modules/app_stack/db_ec2.tf
@@ -72,7 +72,9 @@ resource "aws_instance" "db_server" {
   user_data_replace_on_change = false
 
   lifecycle {
+    # AMI 갱신이 운영 중인 DB EC2를 교체하지 않도록 무시하고, 인스턴스가 재생성되는 시점에 새 AMI를 적용합니다.
     ignore_changes = [
+      ami,
       key_name,
       user_data,
       user_data_base64,