Merge pull request #52 from marcelthole/normalize-more-fields #14

	# From:
	# https://www.docker.com/blog/docker-github-actions/
	# https://github.com/metcalfc/docker-action-examples

	name: Docker-Build

	on:
	push:
	tags:
	- "."

	jobs:
	docker:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v2

	- name: Test Dockerfile
	uses: ./.github/actions/validate-dockerfile

	- name: Set up Docker Buildx
	id: buildx
	uses: docker/setup-buildx-action@v1

	- name: Cache Docker layers
	uses: actions/cache@v2
	with:
	path: /tmp/.buildx-cache
	key: ${{ runner.os }}-buildx-${{ github.sha }}
	restore-keys: \|
	${{ runner.os }}-buildx-

	- name: Login to ghcr
	uses: docker/login-action@v1
	with:
	registry: ghcr.io
	username: ${{ github.repository_owner }}
	password: ${{ secrets.GHCR_TOKEN }}

	- name: Get the version
	id: get_version
	run: echo ::set-output name=VERSION::${GITHUB_REF#refs/tags/}

	- name: Build and push
	uses: docker/build-push-action@v2
	with:
	builder: ${{ steps.buildx.outputs.name }}
	context: ./docker
	file: ./docker/Dockerfile
	build-args: \|
	COMPOSER_REQUIRE_VERSION=${{ steps.get_version.outputs.VERSION }}
	push: true
	tags: ghcr.io/${{ github.repository }}:latest,ghcr.io/${{ github.repository }}:${{ steps.get_version.outputs.VERSION }}

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