main.yml

name: Deploy gradle in EC2

on:
  push:
    branches: [ "main" ]

permissions:
  contents: read

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3

      - name: Set up JDK 17
        uses: actions/setup-java@v3
        with:
          java-version: '17'
          distribution: 'temurin'

      ## Create secret yml files before build
      - name: create application-common, local, test.yml
        shell: bash
        run: |
          touch ./src/main/resources/application-common.yml 
          echo "${{secrets.APPLICATION_COMMON}}" > ./src/main/resources/application-common.yml
          touch ./src/main/resources/application-local.yml
          echo "${{secrets.APPLICATION_LOCAL}}" > ./src/main/resources/application-local.yml
          touch ./src/main/resources/application-test.yml
          echo "${{secrets.APPLICATION_TEST}}" > ./src/main/resources/application-test.yml

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

      - name: Grant execute permission for gradlew
        run: chmod +x gradlew

      ## Build without test
      - name: Build with Gradle
        run: ./gradlew clean build -x test

      ## Docker
      - name: Login to Docker Hub
        uses: docker/login-action@v2
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2

      - name: Build and push
        uses: docker/build-push-action@v4
        with:
          context: .
          file: ./Dockerfile
          platforms: linux/amd64
          push: true
          tags: ${{ secrets.DOCKERHUB_REPO }}:latest

  deploy:
    needs: build  # Run after build
    runs-on: ubuntu-latest
    steps:
      - name: connect EC2 instance and deploy docker images to main server
        uses: appleboy/ssh-action@v0.1.10
        with:
          host: ${{ secrets.AWS_EC2_HOST_IP }}
          username: ${{ secrets.AWS_EC2_USERNAME }}
          key: ${{ secrets.AWS_SSH_KEY }}

          ## kill container -> remove container -> remove image -> pull new image -> run
          script: |
            sudo docker kill ${{ secrets.PROJECT_NAME }}  
            sudo docker rm ${{ secrets.PROJECT_NAME }} 
            sudo docker rmi ${{ secrets.DOCKERHUB_REPO }}
            sudo docker pull ${{ secrets.DOCKERHUB_REPO }}:latest
            sudo docker run -d --name ${{ secrets.PROJECT_NAME }} -p 8080:8080 ${{ secrets.DOCKERHUB_REPO }}:latest