docker ci via github actions

        file: ./Dockerfile

        tags: ${{ secrets.DOCKER_HUB_USERNAME }}/universc:latest

        push: true

    - name: Image digest

        run: echo ${{ steps.docker_build.outputs.digest }}

          key: ${{ runner.os }}-buildx-${{ github.sha }}

          restore-keys: |

          ${{ runner.os }}-buildx-

      - name: Login to Docker Hub

        uses: docker/login-action@v1 

      - uses: docker/login-action@v1

        with:

          username: ${{ secrets.DOCKER_HUB_USERNAME }}

          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}

          registry: ${{ env.REGISTRY }}

      - name: Build and push

        id: docker_build

        uses: docker/build-push-action@v2