github-actions.yml

# github repository actions 페이지에 나타날 이름
name: CI/CD using github actions & docker

# event trigger
# main이나 develop 브랜치에 push가 되었을 때 실행
on:
  push:
    branches: [ "main"]

permissions:
  contents: read

jobs:
  CI-CD:
    runs-on: ubuntu-latest
    steps:

      # JDK setting - github actions에서 사용할 JDK 설정 (프로젝트나 AWS의 java 버전과 달라도 무방)
      - uses: actions/checkout@v3
      - name: Set up JDK 11
        uses: actions/setup-java@v3
        with:
          java-version: '11'
          distribution: 'temurin'

      # gradle caching - 빌드 시간 향상
      - name: Gradle Caching
        uses: actions/cache@v3
        with:
          path: |
            ~/.gradle/caches
            ~/.gradle/wrapper
          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
          restore-keys: |
            ${{ runner.os }}-gradle-

      # 환경별 yml 파일 생성(1) - application.properties
      - name: make application.properties
        if: |
          contains(github.ref, 'main') ||
          contains(github.ref, 'develop')
        run: |
          mkdir ./src/main/resources
          cd ./src/main/resources # resources 폴더로 이동
          touch ./application.properties # application.properties 생성
          echo "${{ secrets.YML }}" > ./application.properties # github actions에서 설정한 값을 application.properties 파일에 쓰기
        shell: bash

      # gradle build
      - name: Build with Gradle
        run: ./gradlew build -x test

      # docker build & push to production
      - name: Docker build & push to prod
        if: contains(github.ref, 'main')
        run: |
          docker login -u ${{ secrets.DOCKER_USERNAME }} -p ${{ secrets.DOCKER_PASSWORD }}
          docker build -f Dockerfile -t ${{ secrets.DOCKER_USERNAME }}/conteswt .
          docker push ${{ secrets.DOCKER_USERNAME }}/conteswt

      ## deploy to production
      - name: Deploy to prod
        uses: appleboy/ssh-action@master
        id: deploy-prod
        if: contains(github.ref, 'main')
        with:
          host: ${{ secrets.HOST_PROD }} # EC2 퍼블릭 IPv4 DNS
          username: ubuntu
          key: ${{ secrets.PRIVATE_KEY }}
          envs: GITHUB_SHA
          script: |
            sudo docker ps
            sudo docker pull ${{ secrets.DOCKER_USERNAME }}/conteswt
            sudo docker stop conteswt
            sudo docker rm conteswt
            sudo docker run -it -d -p 8080:8080 --name conteswt ${{ secrets.DOCKER_USERNAME }}/conteswt
            sudo docker image prune -f