[#13] feat: docker compose 활용한 애플리케이션 실행

- nginx, app, db 컨테이너 구성
- dockerize 활용한 컨테이너 실제 실행 순서 보장

Dockerfile

@@ -20,13 +20,23 @@ RUN ./gradlew bootjar
 
 FROM openjdk:17-alpine
 
+ENV DOCKERIZE_VERSION v0.6.1
 ENV WORK_DIR=/usr/app/
 
 WORKDIR $WORK_DIR
 
 COPY --from=BUILD_IMAGE $WORK_DIR/build/libs/*.jar dongne-api.jar
 
-ENTRYPOINT ["java", \
-"-jar", \
-"-Dspring.profiles.active=${PROFILE_OPTION}", \
-"dongne-api.jar"]
+# run in order through dockerize utility (alpine version)
+# link - https://github.com/jwilder/dockerize
+RUN apk add --no-cache openssl bash
+
+RUN wget https://github.com/jwilder/dockerize/releases/download/$DOCKERIZE_VERSION/dockerize-alpine-linux-amd64-$DOCKERIZE_VERSION.tar.gz \
+    && tar -C /usr/local/bin -xzvf dockerize-alpine-linux-amd64-$DOCKERIZE_VERSION.tar.gz \
+    && rm dockerize-alpine-linux-amd64-$DOCKERIZE_VERSION.tar.gz
+
+COPY ./script/docker-entrypoint.sh docker-entrypoint.sh
+
+RUN chmod +x docker-entrypoint.sh
+
+ENTRYPOINT ["./docker-entrypoint.sh"]

README.md

@@ -7,3 +7,18 @@
 - kotlin 1.6.21
 - Spring Boot 2.7.0
 - MySQL
+
+## local 환경
+
+### 로컬 환경 내 로컬 DB 따로 구성
+- local에 DB(MySQL)용 docker container run
+- application은 IDE에서 실행 (default profile: `local`)
+```bash
+$ docker run --name beanie-test-db -e MYSQL_ROOT_PASSWORD=beaniejoy -d -p 3306:3306 mysql:5.7.34
+```
+
+### docker compose 실행
+- docker compose를 이용한 nginx, DB(MySQL), application 한꺼번에 실행하는 경우
+```bash
+$ docker-compose up --build
+```

docker-compose.yaml

@@ -17,9 +17,11 @@ services:
       - "8080:8080"
     env_file:
       - env/app.env
-
-# docker 환경에서 local db 활용하기 위한 설정
-networks:
-  default:
-    external:
-      name: api-net
+    depends_on:
+      - db
+  db:
+    image: mysql:5.7.34
+    ports:
+      - "3306:3306"
+    env_file:
+      - env/db.env

env/app.env

@@ -1 +1,4 @@
-PROFILE_OPTION=docker
+PROFILE_OPTION=docker
+SPRING_DATASOURCE_URL=jdbc:mysql://db:3306/dongne?autoreconnect=true&characterEncoding=utf8&serverTimezone=Asia/Seoul
+SPRING_DATASOURCE_USERNAME=root
+SPRING_DATASOURCE_PASSWORD=beaniejoy

env/db.env

@@ -0,0 +1,2 @@
+MYSQL_DATABASE=dongne
+MYSQL_ROOT_PASSWORD=beaniejoy

script/docker-entrypoint.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+echo "wait DB container up"
+dockerize -wait tcp://db:3306 -timeout 20s
+
+echo "run dongne-api application"
+java -jar -Dspring.profiles.active=${PROFILE_OPTION} dongne-api.jar

src/main/resources/application-docker.yml

@@ -1,6 +0,0 @@
-# local docker 환경 내 local db 활용
-spring:
-  datasource:
-    url: jdbc:mysql://beanie-test-db:3306/dongne?autoreconnect=true&characterEncoding=utf8&serverTimezone=Asia/Seoul
-    username: root
-    password: beaniejoy # TODO 추후 보안에 대해 생각해보기