docker.yml

name: Docker CI
on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]
env:
  IMAGE_NAME: gateway
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      # JDK
      - name: Set up JDK
        uses: actions/setup-java@v1
        with:
          java-version: 16
      # Chmod
      - name: Grant execute permission for gradlew
        run: chmod +x gradlew
      # Build
      - name: Build with Gradle
        run: ./gradlew build
        env:
          USERNAME: ${{ github.actor }}
          TOKEN: ${{ secrets.GITHUB_TOKEN }}
      # Upload
      - name: Save Artifacts
        uses: actions/upload-artifact@v2
        if: github.event_name == 'push'
        with:
          name: bootjar
          path: build/libs/*.jar
  docker:
    runs-on: ubuntu-latest
    needs: build
    if: github.event_name == 'push'
    steps:
      - uses: actions/checkout@v2
      # Download
      - name: Download Artifacts
        uses: actions/download-artifact@v2
        with:
          name: bootjar
          path: build/libs/
      # Delete artifact
      - name: Delete artifacts
        uses: geekyeggo/delete-artifact@v1
        with:
          name: bootjar
      # Build
      - name: Docker Build
        run: docker build . --file Dockerfile --tag $IMAGE_NAME
      # Auth
      - name: Log into registry
        run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login docker.pkg.github.com -u ${{ github.actor }} --password-stdin
      # Push
      - name: Push image
        run: |
          IMAGE_ID=docker.pkg.github.com/${{ github.repository }}/$IMAGE_NAME

          # Change all uppercase to lowercase
          IMAGE_ID=$(echo $IMAGE_ID | tr '[A-Z]' '[a-z]')

          # Strip git ref prefix from version
          VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')

          # Strip "v" prefix from tag name
          [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//')

          # Use Docker `latest` tag convention
          [ "$VERSION" == "master" ] && VERSION=latest

          echo IMAGE_ID=$IMAGE_ID
          echo VERSION=$VERSION

          docker tag $IMAGE_NAME $IMAGE_ID:$VERSION
          docker push $IMAGE_ID:$VERSION
  deploy:
    name: deploy
    runs-on: ubuntu-latest
    needs: docker
    if: github.event_name == 'push'
    steps:
      - name: Restart Stack
        uses: appleboy/ssh-action@master
        with:
          host: ${{ secrets.CLUSTER_SSH_HOST }}
          username: ${{ secrets.CLUSTER_SSH_USER }}
          key: ${{ secrets.CLUSTER_SSH_KEY }}
          script: |
            cd /opt/lindsey
            docker-compose rm -sf gateway
            docker rmi docker.pkg.github.com/lindseybot/gateway/gateway:latest
            docker-compose up -d gateway