Use ampersand 5 #183

	# This workflow builds and pushes Ampersand prototype framework images to Docker Hub
	# We want to have images for branches 'main' (latest) and for all tags (i.e. releases, like e.g. v4.0.2)
	# We use a Github Action from the market place. See: https://github.com/marketplace/actions/build-and-push-docker-images
	name: Build push to DockerHub
	on:
	push:
	branches: # empty list to trigger all branches
	- main
	tags:
	- 'v*'

	jobs:
	build-push:
	name: Build push
	runs-on: ubuntu-latest
	steps:
	- name: Docker meta
	id: meta
	uses: docker/metadata-action@v3
	with:
	# list of Docker images to use as base name for tags
	images: \|
	ampersandtarski/prototype-framework
	# generate Docker tags based on the following events/attributes
	tags: \|
	type=schedule
	type=ref,event=branch
	type=ref,event=pr
	type=semver,pattern=v{{version}}
	type=semver,pattern=v{{major}}.{{minor}}
	type=semver,pattern=v{{major}}

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

	- name: Login to DockerHub
	uses: docker/login-action@v1
	with:
	username: ${{ secrets.DOCKER_HUB_USERNAME }}
	password: ${{ secrets.DOCKER_HUB_PASSWORD }}

	- name: Build and push to Docker Hub
	uses: docker/build-push-action@v2
	with:
	push: true
	target: framework
	tags: ${{ steps.meta.outputs.tags }} # see meta step above
	labels: ${{ steps.meta.outputs.labels }}

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