build.yml

name: Build

on:
  push:
    branches: [master]
  pull_request:
    branches: [master]

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
        with:
          fetch-depth: 0

      - name: Set up JDK 11
        uses: actions/setup-java@v2
        with:
          java-version: "11"
          distribution: "adopt"

      - name: Build for push
        run: mvn -B clean package -Dskip.docker.build=true

      - name: Login to Docker Hub
        run: echo "${{ secrets.DOCKER_PASSWORD }}" | docker login -u ${{ secrets.DOCKER_USERNAME }} --password-stdin

      - name: Inject slug/short variables
        uses: rlespinasse/github-slug-action@v3.x

      - name: Building and publich Docker Image
        run: |
          IMAGE_NAME=${{ secrets.DOCKER_USERNAME }}/${{ secrets.APP_NAME }}
          TAG=`if [ "${{ env.GITHUB_REF_SLUG }}" == "master" ]; then echo "latest"; else echo ${{ env.GITHUB_REF_SLUG }}; fi`

          docker build -t $IMAGE_NAME:${{ env.GITHUB_SHA_SHORT }} -t $IMAGE_NAME:$TAG --build-arg JAR_FILE=target/${{ secrets.APP_NAME }}.jar .
          docker push $IMAGE_NAME --all-tags