[#174] 무중단 배포 적용 (#175)

* refactor: springboot 컨테이너를 blue/green으로 이중화

* refactor: 무중단 배포 스크립트 작성 및 Github Action 명령어 변경

* refactor: 기존의 컨테이너를 삭제하는 명령어 제거
- 무중단 배포 중 db, redis가 재설치되어 SpringBoot도 일시적으로 중단되는 현상 발생

Author: rlarltj

.github/workflows/deploy-to-dev.yml

@@ -43,7 +43,7 @@ jobs:
           docker push ${{ secrets.DOCKER_USERNAME }}/${{ secrets.DOCKER_REPO }}
 
       # 환경 변수 파일 서버로 전달하기(복사 후 붙여넣기)
-      - name: Send to Environment
+      - name: Send env file
         uses: appleboy/scp-action@master
         with:
           username: ubuntu
@@ -53,7 +53,7 @@ jobs:
           target: "/home/ubuntu"
 
       # 도커 컴포즈 설정 파일 서버로 전달하기(복사 후 붙여넣기)
-      - name: Send to Docker-Compose
+      - name: Send docker-compose.yml
         uses: appleboy/scp-action@master
         with:
           username: ubuntu
@@ -63,6 +63,17 @@ jobs:
           source: "./docker-compose.yml"
           target: "/home/ubuntu/"
 
+      # deploy.sh 파일 서버로 전달하기(복사 후 붙여넣기)
+      - name: Send deploy.sh
+        uses: appleboy/scp-action@master
+        with:
+          username: ubuntu
+          host: ${{ secrets.EC2_HOST }}
+          key: ${{ secrets.EC2_PRIVATE_KEY }}
+          port: 22
+          source: "./deploy.sh"
+          target: "/home/ubuntu/"
+
       # 도커 컴포즈 실행하기
       # 도커 허브에서 jar파일 및 pull후에 컴포즈 up
       - name: Deploy to Dev
@@ -72,8 +83,7 @@ jobs:
           host: ${{ secrets.EC2_HOST }}
           key: ${{ secrets.EC2_PRIVATE_KEY }}
           script: |
-            sudo docker rm -f $(docker ps -qa)
             sudo docker pull ${{ secrets.DOCKER_USERNAME }}/${{ secrets.DOCKER_REPO }}
-            sudo docker pull ${{ secrets.DOCKER_USERNAME }}/${{ secrets.DOCKER_NGINX_REPO }}
-            docker-compose up -d
+            chmod 777 ./deploy.sh
+            ./deploy.sh
             docker image prune -f

deploy.sh

@@ -0,0 +1,78 @@
+#!/bin/bash
+
+if [ $(docker ps | grep -c "db") -eq 0 ]; then
+  echo "### Starting database ###"
+  docker-compose up -d db
+else
+  echo "db is already running"
+fi
+
+echo
+echo
+
+if [ $(docker ps | grep -c "redis") -eq 0 ]; then
+  echo "### Starting redis ###"
+  docker-compose up -d redis
+else
+  echo "redis is already running"
+fi
+
+APP_NAME=web
+
+IS_GREEN=$(docker ps | grep green) # 현재 실행중인 App이 blue인지 확인
+DEFAULT_CONF=" /etc/nginx/nginx.conf"
+
+if [ -z $IS_GREEN  ];then # blue라면
+
+  echo "### BLUE => GREEN ###"
+
+  echo "1. get green image"
+  docker-compose pull green # 이미지 받아서
+
+  echo "2. green container up"
+  docker-compose up -d green # 컨테이너 실행
+
+  while [ 1 = 1 ]; do
+  echo "3. green health check..."
+  sleep 3
+
+  REQUEST=$(curl http://127.0.0.1:8080) # green으로 request
+    if [ -n "$REQUEST" ]; then # 서비스 가능하면 health check 중지
+            echo "health check success"
+            break ;
+            fi
+  done;
+
+  echo "4. reload nginx"
+  sudo cp /etc/nginx/nginx.green.conf /etc/nginx/nginx.conf
+  sudo nginx -s rel
+
+  echo "5. blue container down"
+  docker-compose stop blue
+else
+  echo "### GREEN => BLUE ###"
+
+  echo "1. get blue image"
+  docker-compose pull blue
+
+  echo "2. blue container up"
+  docker-compose up -d blue
+
+  while [ 1 = 1 ]; do
+    echo "3. blue health check..."
+    sleep 3
+    REQUEST=$(curl http://127.0.0.1:8081) # blue로 request
+
+    if [ -n "$REQUEST" ]; then # 서비스 가능하면 health check 중지
+      echo "health check success"
+      break ;
+    fi
+  done;
+
+  echo "4. reload nginx"
+  sudo cp /etc/nginx/nginx.blue.conf /etc/nginx/nginx.conf
+  sudo nginx -s reload
+
+  echo "5. green container down"
+  docker-compose stop green
+fi

docker-compose.yml

@@ -22,13 +22,35 @@ services:
     volumes:
       - ./data/redis:/data
 
-  web:
-    container_name: web
+  green:
+    container_name: green
     image: kiseo/kkini
-    expose:
-      - 8080
     ports:
-      - 8080:8080
+      - "8080:8080"
+    environment:
+      MY_SERVER: ${MY_SERVER}
+      AWS_ACCESS_KEY: ${AWS_ACCESS_KEY}
+      AWS_SECRET_KEY: ${AWS_SECRET_KEY}
+      SPRING_DATASOURCE_URL: ${SPRING_DATASOURCE_URL}
+      SPRING_DATASOURCE_USERNAME: ${SPRING_DATASOURCE_USERNAME}
+      SPRING_DATASOURCE_PASSWORD: ${SPRING_DATASOURCE_PASSWORD}
+      JWT_SECRET_KEY: ${JWT_SECRET_KEY}
+      KAKAO_CLIENT_ID: ${KAKAO_CLIENT_ID}
+      KAKAO_CLIENT_SECRET: ${KAKAO_CLIENT_SECRET}
+      KAKAO_REDIRECT_URI: ${KAKAO_REDIRECT_URI}
+      GOOGLE_CLIENT_ID: ${GOOGLE_CLIENT_ID}
+      GOOGLE_CLIENT_SECRET: ${GOOGLE_CLIENT_SECRET}
+      GOOGLE_REDIRECT_URI: ${GOOGLE_REDIRECT_URI}
+      REDIS_HOST: ${REDIS_HOST}
+      REDIS_PORT: ${REDIS_PORT}
+      ACTIVE_PROFILE: ${ACTIVE_PROFILE}
+      SLACK_WEBHOOK: ${SLACK_WEBHOOK}
+
+  blue:
+    container_name: blue
+    image: kiseo/kkini
+    ports:
+      - "8081:8080"
     environment:
       MY_SERVER: ${MY_SERVER}
       AWS_ACCESS_KEY: ${AWS_ACCESS_KEY}