Merge pull request #285 from jdriesch/main #27

	# CI step to build the unittest container to be used for the other CI steps
	# publish the container in the github container registry

	name: Checks

	# This workflow should only run when the Dockerfile changes
	on:
	push:
	paths:
	- docker/Dockerfile
	pull_request:
	paths:
	- docker/Dockerfile
	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: ${{ github.repository }}-crown-unittest

	jobs:
	build_unittest_container:
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write
	steps:
	- name: Checkout repository
	uses: actions/checkout@v4
	- name: Log in to the Container registry
	uses: docker/login-action@65b78e6e13532edd9afa3aa52ac7964289d1a9c1
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.TOKEN }}
	- name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@9ec57ed1fcdbf14dcef7dfbe97b2010124a938b7
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
	- name: Build and push Docker image
	uses: docker/build-push-action@f2a1d5e99d037542a71f64918e516c093c6f3fc4
	with:
	context: .
	file: docker/Dockerfile
	push: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}

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