Add LABEL to dockerfile(s) #2

	name: Kiwix-build container images

	on:
	push:
	paths:
	- 'kiwix-build_ci/**'

	env:
	IMAGE_PREFIX: ghcr.io/kiwix/kiwix-build_ci_

	jobs:
	Container:
	strategy:
	fail-fast: false
	matrix:
	variant: [f35, focal, bionic, alpine]
	runs-on: ubuntu-22.04

	steps:
	- name: Get current date
	run: echo "::set-output name=DATE::$(date +'%Y-%m-%d')"

	- name: Retrieve the code
	uses: actions/checkout@v3

	- name: Setup container image name
	id: env
	run: \|
	echo "IMAGE_NAME=${{ env.IMAGE_PREFIX }}${{ matrix.variant }}" >> $GITHUB_OUTPUT

	- name: Build container image
	run: \|
	docker build -t ${{ steps.env.outputs.IMAGE_NAME }}:dev - < kiwix-build_ci/${{ matrix.variant }}_builder.dockerfile

	- name: Tag release container image
	if: github.event.ref == 'refs/heads/main'
	run: \|
	docker tag ${{ steps.env.outputs.IMAGE_NAME }}:dev ${{ steps.env.outputs.IMAGE_NAME }}:${{ steps.date.outputs.DATE }}
	docker tag ${{ steps.env.outputs.IMAGE_NAME }}:dev ${{ steps.env.outputs.IMAGE_NAME }}:latest

	- name: Upload container image
	run: \|
	echo "${{ secrets.GHCR_TOKEN }}" \| docker login ghcr.io -u "${{ secrets.GHCR_USERNAME }}" --password-stdin
	docker push --all-tags ${{ steps.env.outputs.IMAGE_NAME }}

Provide feedback