[Spring Boot] Docker에 Spring Boot, Mysql 띄워 연결하기(JPA)

docker-compose.yml

version: '3'

services:
  db:
    container_name: db
    image: mysql
    restart: on-failure
    environment:
      MYSQL_DATABASE: mysqldb
      MYSQL_ROOT_HOST: '%'
      MYSQL_ROOT_PASSWORD: 1234
      TZ: 'Asia/Seoul'
    ports:
      - "3306:3306"
    volumes:
      - data_mysqldb:/var/lib/mysqldb
    networks:
      - app-tier
    tty: true

  api-server:
    container_name: api-server
    build:
      context: ./
    command: gradle bootRun
    ports:
      - "8080:8080"
    networks:
      - app-tier
    depends_on:
      - db
    restart: on-failure
    tty: true

networks:
  app-tier:
    driver: bridge

volumes:
  data_mysqldb: null

 

Dockerfile

FROM gradle:7.5.1-jdk11
WORKDIR /app
COPY . /app

 

application.yml

spring:
  datasource:
    driver-class-name: com.mysql.cj.jdbc.Driver
    url: jdbc:mysql://db:3306/mysqldb?serverTimezone=Asia/Seoul
    username: root
    password: 1234

  jpa:
    hibernate:
      ddl-auto: create
    properties:
      hibernate:
        show_sql: true
        format_sql: true

 

간단하게 Docker 환경에서 Spring Boot와 MySQL을 연결하는 코드이다.

실제 사용할 때는 .env파일을 만들고 

    env_file:
      - .env

을 선언해주자!. 

application.yml 파일도 -dev, -local, -test 이렇게 구분해주는 것이 좋다.