Docker로 배포

# Dockerfile (multi-stage build)
FROM gradle:8-jdk17 AS builder
WORKDIR /app
COPY . .
RUN gradle build -x test

FROM eclipse-temurin:17-jre-alpine
WORKDIR /app
COPY --from=builder /app/build/libs/*.jar app.jar
EXPOSE 8080
ENTRYPOINT ["java", "-jar", "app.jar"]

---
# docker-compose.yml
version: '3.8'
services:
  app:
    build: .
    ports:
      - "8080:8080"
    environment:
      - SPRING_DATASOURCE_URL=jdbc:mysql://db:3306/mydb
      - SPRING_DATASOURCE_USERNAME=root
      - SPRING_DATASOURCE_PASSWORD=password
    depends_on:
      - db
  db:
    image: mysql:8
    environment:
      - MYSQL_ROOT_PASSWORD=password
      - MYSQL_DATABASE=mydb
    ports:
      - "3306:3306"

# 실행
# docker-compose up -d