release.yml

name: Release
on:
  create:
    tags:
      - v*

jobs:
  docker:
    runs-on: ubuntu-latest
    steps:
      -
        name: Checkout
        uses: actions/checkout@v2
      -
        name: Set up QEMU
        uses: docker/setup-qemu-action@v1
      - 
        name: Get tag version
        id: get_version
        run: echo ::set-output name=VERSION::``${GITHUB_REF#refs/tags/}``
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
      -
        name: Login to DockerHub
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      -
        name: Build and push
        uses: docker/build-push-action@v2
        with:
          context: .
          push: true
          build-args: BUILD_VERSION=${{ steps.get_version.outputs.VERSION }}
          tags: |
            alcounit/seleniferous:latest
            alcounit/seleniferous:${{ steps.get_version.outputs.VERSION }}