Add publish of arm64 docker image (#169)

.github/workflows/publish.yml

@@ -27,18 +27,23 @@ jobs:
  uses: actions/setup-java@v1
  with:
  java-version: 11
- - name: build and test 
+ - name: build and test
  run: ./gradlew clean shadowJar test jacocoTestReport
  working-directory: ./kotlin/local-data-api/
  - name: Login to DockerHub
  if: github.event_name == 'release' && github.event.action == 'published'
- uses: docker/login-action@v1 
+ uses: docker/login-action@v1
  with:
  username: ${{ secrets.DOCKERHUB_USERNAME }}
  password: ${{ secrets.DOCKERHUB_TOKEN }}
+ - name: Set up QEMU
+ uses: docker/setup-qemu-action@v1
+ - name: Set up Docker Buildx
+ uses: docker/setup-buildx-action@v1
  - name: Build and push
  uses: docker/build-push-action@v2
  with:
  push: ${{ github.event_name == 'release' && github.event.action == 'published' }}
  tags: ${{ steps.docker_meta.outputs.tags }}
  context: ./kotlin/local-data-api
+ platforms: linux/amd64,linux/arm64