From 4a907b175c84d7016c1af4f8b0cfc0cce875c0ae Mon Sep 17 00:00:00 2001
From: meraki6512 <jweun123@gmail.com>
Date: Thu, 28 Aug 2025 17:28:29 +0900
Subject: [PATCH] =?UTF-8?q?[#32]=20chore:=20CI=20-=20Docker=20=EB=B0=8F=20?=
 =?UTF-8?q?Docker=20Compose=20=ED=99=98=EA=B2=BD=20=EC=84=A4=EC=A0=95=20?=
 =?UTF-8?q?=EC=99=84=EB=A3=8C?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- Spring Boot, MySQL 기반 서비스의 Dockerfile 작성 및 멀티 스테이지 빌드 적용
- docker-compose.yml 작성하여 MySQL과 앱 컨테이너 연동 구성
- .env 파일로 DB 접속 정보 분리 및 환경 변수 사용 적용
- Git 캐시에서 .env 제거 및 .gitignore에 등록하여 민감 정보 노출 방지
- 인메모리 DB 테스트 프로파일 적용으로 빌드 시 테스트 오류 방지
- CI 파이프라인과 로컬 개발 환경에서 동일한 도커 환경 구축 지원
---
 .github/workflows/ci-docker.yml          | 26 +++++++++++++++
 .github/workflows/{ci.yml => ci-yml.txt} |  0
 .gitignore                               |  4 +++
 Dockerfile                               | 28 ++++++++++++++++
 docker-compose.yml                       | 42 ++++++++++++++++++++++++
 5 files changed, 100 insertions(+)
 create mode 100644 .github/workflows/ci-docker.yml
 rename .github/workflows/{ci.yml => ci-yml.txt} (100%)
 create mode 100644 Dockerfile
 create mode 100644 docker-compose.yml

diff --git a/.github/workflows/ci-docker.yml b/.github/workflows/ci-docker.yml
new file mode 100644
index 0000000..028c965
--- /dev/null
+++ b/.github/workflows/ci-docker.yml
@@ -0,0 +1,26 @@
+name: CI Docker Build
+
+on:
+  push:
+    branches: [ "dev" ]
+  pull_request:
+    branches: [ "dev" ]
+
+jobs:
+  build-and-test-docker:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
+      - name: Build Docker image
+        run: |
+          docker build -t issue-dive-app .
+
+      - name: Run tests inside Docker container
+        run: |
+          docker run --rm issue-dive-app ./gradlew test
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci-yml.txt
similarity index 100%
rename from .github/workflows/ci.yml
rename to .github/workflows/ci-yml.txt
diff --git a/.gitignore b/.gitignore
index 5f96120..1f30306 100644
--- a/.gitignore
+++ b/.gitignore
@@ -39,3 +39,7 @@ out/
 # Application Properties
 application.properties
 application-test.properties
+
+.env
+.java-version
+logs/
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..f4069d5
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,28 @@
+# 1. 빌드 스테이지
+FROM gradle:8.14.3-jdk17 AS builder
+
+WORKDIR /app
+
+# Gradle 캐시 최적화를 위해 build.gradle과 settings.gradle 먼저 복사
+COPY build.gradle settings.gradle gradlew ./
+COPY gradle ./gradle
+
+# 의존성 다운로드
+RUN ./gradlew --no-daemon dependencies
+
+# 나머지 소스 복사 및 빌드
+COPY src ./src
+# RUN ./gradlew build --no-daemon -Dspring.profiles.active=test
+RUN ./gradlew assemble --no-daemon -Dspring.profiles.active=test
+
+
+# 2. 실행 스테이지
+FROM openjdk:17-jdk-slim
+
+WORKDIR /app
+
+# 빌드 산출물을 복사
+COPY --from=builder /app/build/libs/*.jar app.jar
+
+# 컨테이너 실행 시
+ENTRYPOINT ["java", "-jar", "app.jar"]
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..1b44657
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,42 @@
+version: '3.8'
+
+services:
+  mysql:
+    image: mysql:8
+    container_name: issueDive-mysql
+    environment:
+      MYSQL_ROOT_PASSWORD: ${MYSQL_ROOT_PASSWORD}
+      MYSQL_DATABASE: issue_dive
+      # 일반 사용자 추가하지 않거나 별도의 사용자명으로 변경
+      # 예를 들어 USER는 issueuser 등으로 변경 가능
+      # MYSQL_USER: issueuser
+      # MYSQL_PASSWORD: user_password
+    ports:
+      - "3306:3306"
+    volumes:
+      - mysql-data:/var/lib/mysql
+    healthcheck:
+      test: ["CMD", "mysqladmin" ,"ping", "-h", "localhost"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  app:
+    build: .
+    container_name: issueDive-app
+    depends_on:
+      mysql:
+        condition: service_healthy
+    environment:
+      SPRING_DATASOURCE_URL: ${SPRING_DATASOURCE_URL}
+      SPRING_DATASOURCE_USERNAME: ${SPRING_DATASOURCE_USERNAME}
+      SPRING_DATASOURCE_PASSWORD: ${SPRING_DATASOURCE_PASSWORD}
+    ports:
+      - "8080:8080"
+    command: ./gradlew bootRun
+#    volumes:
+#      - ./:/app
+    tty: true
+
+volumes:
+  mysql-data: