From 7ba2a307b5ef26b8108e4f7741dbc6ce58c50114 Mon Sep 17 00:00:00 2001
From: Sangkwon Lee <sangkwon26@gmail.com>
Date: Thu, 24 Apr 2025 04:54:35 +0900
Subject: [PATCH] =?UTF-8?q?chore:=20=EB=8F=84=EC=BB=A4=20=EC=9D=B4?=
 =?UTF-8?q?=EB=AF=B8=EC=A7=80=20=EC=B5=9C=EC=A0=81=ED=99=94=EB=A1=9C=20?=
 =?UTF-8?q?=EB=B0=B0=ED=8F=AC=20=EC=8B=9C=EA=B0=84=20=EB=8B=A8=EC=B6=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .dockerignore |  5 +++++
 Dockerfile    | 24 ++++++++++++++++++++----
 2 files changed, 25 insertions(+), 4 deletions(-)
 create mode 100644 .dockerignore

diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 00000000..72f75212
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,5 @@
+.git
+.gradle
+build/
+**/*.log
+README.md
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
index 3be79420..863c3e15 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,22 @@
-FROM openjdk:21
+# ---------- [1단계: 빌드 전용 스테이지] ----------
+FROM gradle:8.5-jdk21 AS builder
+WORKDIR /app
+
+# 불필요한 파일은 제외하여 캐시 효율 증가
+COPY build.gradle settings.gradle ./
+COPY gradle ./gradle
+RUN gradle dependencies --no-daemon || return 0
+
+# 나머지 소스 복사
+COPY . .
+RUN gradle clean build -x test --no-daemon
 
-# /home/ubuntu/app
+# ---------- [2단계: 실행 전용 스테이지] ----------
+FROM openjdk:21-slim
 WORKDIR /app
-COPY *.jar app.jar
-ENTRYPOINT ["java","-Dspring.profiles.active=prod","-jar","app.jar"]
\ No newline at end of file
+
+# 빌드된 jar만 복사 → 이미지 최소화
+COPY --from=builder /app/build/libs/*.jar app.jar
+
+# 실행
+ENTRYPOINT ["java", "-Dspring.profiles.active=prod", "-jar", "app.jar"]