From 68dd7713962c42084380eff1971af55943792c39 Mon Sep 17 00:00:00 2001
From: Hexeong <123macanic@naver.com>
Date: Fri, 10 Jul 2026 13:26:06 +0900
Subject: [PATCH] =?UTF-8?q?hotfix:=20db=20ec2=EC=97=90=20OOM=20=EB=B0=A9?=
 =?UTF-8?q?=EC=A7=80=EB=A5=BC=20=EC=9C=84=ED=95=9C=20swap=20=EB=A9=94?=
 =?UTF-8?q?=EB=AA=A8=EB=A6=AC=20=EC=B6=94=EA=B0=80?=
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---
 .../app_stack/scripts/mysql_setup.sh.tftpl    | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/modules/app_stack/scripts/mysql_setup.sh.tftpl b/modules/app_stack/scripts/mysql_setup.sh.tftpl
index 1904877..75ae358 100644
--- a/modules/app_stack/scripts/mysql_setup.sh.tftpl
+++ b/modules/app_stack/scripts/mysql_setup.sh.tftpl
@@ -18,8 +18,32 @@ command -v docker >/dev/null
 command -v blkid >/dev/null
 command -v mkfs.ext4 >/dev/null
 command -v mountpoint >/dev/null
+command -v swapon >/dev/null
+command -v mkswap >/dev/null
+
+ensure_swap() {
+  local swap_file="/swapfile"
+
+  if ! swapon --show=NAME --noheadings | grep -Fxq "$swap_file"; then
+    if [ ! -f "$swap_file" ]; then
+      fallocate -l 2G "$swap_file" || dd if=/dev/zero of="$swap_file" bs=1M count=2048
+    fi
+
+    chmod 600 "$swap_file"
+    if [ "$(blkid -s TYPE -o value "$swap_file" 2>/dev/null || true)" != "swap" ]; then
+      mkswap "$swap_file"
+    fi
+
+    swapon "$swap_file"
+  fi
+
+  if ! grep -Eq "^[^#][[:space:]]*$swap_file[[:space:]]+none[[:space:]]+swap[[:space:]]" /etc/fstab; then
+    printf '%s none swap sw 0 0\n' "$swap_file" >> /etc/fstab
+  fi
+}
 
 systemctl enable docker
+ensure_swap
 
 DATA_VOLUME_ID="${db_data_volume_id}"
 DATA_VOLUME_SERIAL="$(printf '%s' "$DATA_VOLUME_ID" | tr -d '-')"