Try env var #3

	name: Builder Image 🧰

	on:
	push:
	branches:
	- 'hello-world'

	permissions:
	packages: write

	env:
	docker_image: 'docker://${{ vars.GHCR_BUILDER_IMAGE }}'

	jobs:
	preview:
	name: Preview 👁️
	runs-on: ubuntu-latest
	steps:
	- name: Checkout repository
	uses: actions/checkout@v3

	- name: Unit Tests 🧪
	uses: $docker_image
	with:
	args: make test-dart-ci

	deploy:
	name: Push 📤
	runs-on: ubuntu-latest
	environment:
	name: build
	url: 'https://${{ vars.GHCR_BUILDER_IMAGE }}'
	steps:
	- name: Checkout repository
	uses: actions/checkout@v3

	- name: Set up Docker Buildx 🧰
	uses: docker/setup-buildx-action@v3

	- name: Login to GitHub Container Registry 🔒
	uses: docker/login-action@v3
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Image 🐳
	uses: docker/build-push-action@v5
	with:
	push: true
	tags: ${{ vars.GHCR_BUILDER_IMAGE }}
	file: Builder.Dockerfile

	stable:
	name: Stable 🏁
	runs-on: ubuntu-latest
	needs: deploy
	steps:
	- name: Checkout repository
	uses: actions/checkout@v3

	- name: Unit Tests 🧪
	uses: $docker_image
	with:
	args: make test-dart-ci

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