build(docker): add build for linux/arm64 #190

	name: Create and publish a Docker image

	on:
	push:
	branches: ["main"]

	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: ${{ github.repository }}

	jobs:
	build-and-push-image:
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write

	steps:
	- name: Checkout repository
	uses: actions/checkout@v3
	with:
	submodules: recursive

	# https://github.com/docker/setup-qemu-action
	- name: Set up QEMU
	uses: docker/setup-qemu-action@v1

	# https://github.com/docker/setup-buildx-action
	- name: Set up Docker Buildx
	id: buildx
	uses: docker/setup-buildx-action@v1

	- name: Log in to the Container registry
	uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

	- name: Build and push Docker image
	uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
	with:
	context: .
	platforms: linux/amd64,linux/arm64
	push: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}
	env:
	NEXT_PUBLIC_CONFIG_HOST: https://api.rezervo.no

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