feat(ci): add build docker images workflow #2

	name: Build docker images

	on:
	push:
	branches:
	- main
	paths:
	- .github/workflows/build-docker-images.yaml
	- apps/**/Dockerfile
	- apps/*/.Dockerfile

	permissions:
	contents: write

	jobs:
	docker:
	name: docker
	concurrency:
	group: docker
	cancel-in-progress: false
	permissions:
	contents: read
	packages: write
	id-token: write
	runs-on: ubuntu-latest
	strategy:
	matrix:
	include:
	- name: ha-linky
	path: apps/home-assistant
	dockerfile: ha-linky.Dockerfile
	steps:
	- name: Checkout
	uses: actions/checkout@v3

	- name: Set up QEMU
	uses: docker/setup-qemu-action@v2

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v2

	- name: Install cosign
	uses: sigstore/cosign-installer@v3.5.0
	with:
	cosign-release: "v2.2.4"

	- name: Set outputs
	id: vars
	run: echo "sha_short=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT

	- name: Login to Docker Hub
	uses: docker/login-action@v2
	with:
	registry: ghcr.io
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Build and push
	uses: docker/build-push-action@v4
	with:
	push: true
	tags: ghcr.io/${{ github.repository }}/${{ matrix.name }}:${{ steps.vars.outputs.sha_short }}
	context: ${{ matrix.path }}
	file: ${{ matrix.path }}/${{ matrix.dockerfile }}
	platforms: linux/amd64, linux/arm64
	provenance: true
	sbom: true

	- name: Sign the images with GitHub OIDC Token
	run: \|
	cosign sign --yes ghcr.io/${{ github.repository }}/${{ matrix.name }}:${{ steps.vars.outputs.sha_short }}

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