[Docker] 5. 도커 컴포즈

1. 서버를 두고 서버에 메세지 던져서 주고 받고

2. OS로 주고 받고

도커 컴포즈 기본

• my_server : 이미지 이름 = 변수

• build : 이미지 이름 받아서 설정 여기서 쓰고 해서 띄우지 말고 도커 파일을 찾아서 띄우기! 도커 파일로 세팅하기!!!!!!
• ./server 내부의 Dockerfile로 빌드하겠다

docker-compose up -d

docker-compose down

버전(최신버전으로)

서비스들(= 컨테이너들)
	이미지 직접 굽지 말고 Dockerfile쓰기
	포트
	재시작

두 개의 서비스 연결하기

• version :

• services:

• build:
• context:

• ports:

• restart:

• networks:
• drivers:

• depends_on:

• environment:

docker inspect 컨테이너ID

전체 코드

docker-compose.yml

version: "3.8"

services:
  my_db:
    build:
      context: ./db
    ports:
      - "3306:3306"
    restart: always
    networks:
      - backend_network
    volumes:
      - my_db_data:/var/lib/mysql

  my_server:
    build:
      context: ./server
    ports:
      - "8080:8080"
    restart: always
    depends_on:
      - my_db
    environment:
      - RDS_HOSTNAME=my_db
      - RDS_PORT=3306
      - RDS_USERNAME=ssar
      - RDS_PASSWORD=ssar1234
      - RDS_DB_NAME=blogdb
    networks:
      - backend_network

networks:
  backend_network:
    driver: bridge
  frontend_network:
    driver: bridge

db/Dockerfile

FROM mysql

COPY init.sql /docker-entrypoint-initdb.d/init.sql

ENV MYSQL_USER=ssar
ENV MYSQL_PASSWORD=ssar1234
ENV MYSQL_ROOT_PASSWORD=root1234
ENV MYSQL_DATABASE=blogdb

CMD ["--character-set-server=utf8mb4", "--collation-server=utf8mb4_unicode_ci"]

EXPOSE 3306

db/init.sql

use blogdb;

CREATE TABLE IF NOT EXISTS user_tb (
    id integer auto_increment,
    created_at timestamp,
    email varchar(20) not null,
    password varchar(60) not null,
    username varchar(20) not null unique,
    profile varchar(100),
    primary key (id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;

CREATE TABLE IF NOT EXISTS board_tb (
    id integer auto_increment,
    content varchar(10000),
    created_at timestamp,
    title varchar(100) not null,
    user_id integer,
    primary key (id),
    constraint fk_board_user_id foreign key (user_id) references user_tb (id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;

CREATE TABLE IF NOT EXISTS reply_tb (
    id integer auto_increment,
    comment varchar(100) not null,
    created_at timestamp,
    board_id integer,
    user_id integer,
    primary key (id),
    constraint fk_reply_board_id foreign key (board_id) references board_tb (id),
    constraint fk_reply_user_id foreign key (user_id) references user_tb (id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;

FLUSH PRIVILEGES;

server/Dockerfile

FROM openjdk:11-jdk-slim

RUN apt-get update
RUN apt-get install -y git

WORKDIR /app

COPY ./entrypoint.sh ./entrypoint.sh

RUN ["chmod", "+x", "entrypoint.sh"]

EXPOSE 8080

ENTRYPOINT ["/bin/bash", "./entrypoint.sh"]

server/entrypoint.sh

git clone https://github.com/busanuv/blog-last.git
cd blog-last
chmod +x gradlew
./gradlew build
chmod +x build/libs/*.jar
java -jar -Dspring.profiles.active=docker build/libs/*.jar