PostgreSQL init & docker-compose 구현

.github/workflows/ci.yml

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+name: CI Pipeline for Jutalkpia
+
+on:
+  push:
+    branches:
+      - dev
+  pull_request:
+    branches:
+      - dev
+
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+
+    steps:
+      # 1. 코드 체크아웃
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      # 2. Java 17 환경 설정
+      - name: Set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: '17'
+
+      # 3. Gradle 빌드
+      # 3.1. chat-service 빌드
+      - name: Build chat-service
+        working-directory: src/backend/chat-service
+        run: ./gradlew clean build -x test
+
+      # 4. Docker 이미지 빌드 및 푸시
+      # 4.1. chat-service 이미지 빌드 및 푸시
+      - name: Build and push Docker image for chat-service
+        working-directory: src/backend/chat-service
+        run: |
+          docker build -t mirlee/chat-service:latest .
+          docker push mirlee/chat-service:latest

src/backend/chat-service/Dockerfile

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+# JDK 17 기반 이미지 사용
+FROM eclipse-temurin:17-jdk-jammy
+
+# 작업 디렉토리 설정
+WORKDIR /app
+
+# 빌드된 JAR 파일 복사
+ARG JAR_FILE=build/libs/chat-service-0.0.1-SNAPSHOT.jar
+COPY ${JAR_FILE} app.jar
+
+# 포트 노출
+EXPOSE 8080
+
+# 애플리케이션 실행
+ENTRYPOINT ["java", "-jar", "app.jar"]
+

src/backend/workspace_server/.gradle/buildOutputCleanup/cache.properties

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+#Tue Jan 21 14:25:20 KST 2025
+gradle.version=8.11.1

src/backend/workspace_server/HELP.md

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+# Getting Started
+
+### Reference Documentation
+
+For further reference, please consider the following sections:
+
+* [Official Gradle documentation](https://docs.gradle.org)
+* [Spring Boot Gradle Plugin Reference Guide](https://docs.spring.io/spring-boot/3.3.7/gradle-plugin)
+* [Create an OCI image](https://docs.spring.io/spring-boot/3.3.7/gradle-plugin/packaging-oci-image.html)
+* [Spring Data MongoDB](https://docs.spring.io/spring-boot/3.3.7/reference/data/nosql.html#data.nosql.mongodb)
+* [Spring for Apache Kafka](https://docs.spring.io/spring-boot/3.3.7/reference/messaging/kafka.html)
+
+### Guides
+
+The following guides illustrate how to use some features concretely:
+
+* [Accessing Data with MongoDB](https://spring.io/guides/gs/accessing-data-mongodb/)
+
+### Additional Links
+
+These additional references should also help you:
+
+* [Gradle Build Scans – insights for your project's build](https://scans.gradle.com#gradle)
+