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Update index.md #102

	name: Create and publish a Docker image

	on:
	push:
	branches: ["**"] # run for any commit or tag push on any branch
	tags-ignore: ["v*"] # reserve v tags for releases

	jobs:
	build-and-push-image:
	name: Build and publish docker images
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	include:
	- dockerfile: Dockerfile
	image: ghcr.io/${{ github.repository }}-application
	context: .
	- dockerfile: tutorial/Dockerfile
	image: ghcr.io/${{ github.repository }}-tutorial
	context: tutorial
	permissions:
	contents: read
	packages: write

	steps:
	- name: Checkout repository
	uses: actions/checkout@v4

	- name: Set up QEMU
	uses: docker/setup-qemu-action@v3

	- name: Set up Docker Buildx
	id: 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: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@v5
	with:
	images: ${{ matrix.image }}
	tags: \|
	type=ref,event=branch
	type=ref,event=tag
	type=ref,event=pr
	type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', 'main') }}

	- name: Build and Push Digest
	id: build
	uses: docker/build-push-action@v5
	with:
	context: ${{ matrix.context }}
	file: ${{ matrix.dockerfile }}
	platforms: linux/amd64, linux/arm64
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}
	push: true

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