README + minor changes #13

	name: Build a Mopidy Docker image (arm64)

	on:
	push:
	branches: [master]
	paths:
	- 'Dockerfile'
	- 'docker/**'
	- '.github/workflows/**'
	workflow_dispatch:

	env:
	REGISTRY: ghcr.io

	jobs:
	docker-build:
	runs-on: ubuntu-24.04-arm

	permissions:
	contents: read
	packages: write
	attestations: write
	id-token: write

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

	- name: Setup Docker Buildx
	uses: docker/setup-buildx-action@v3
	with:
	driver: docker-container

	- name: Login to the Container registry
	uses: docker/login-action@v3
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Get Mopidy version
	id: version
	run: \|
	URL=https://apt.mopidy.com/dists/bookworm/main/binary-arm64/Packages
	VERSION=$(curl -s ${URL} \| grep -A1 '^Package: mopidy$' \| awk '/^Version:/ { sub(/-.*$/, ""); print $2 }' \| sort \| tail -n 1)
	echo "Found version: ${VERSION}"
	echo "mopidy_version=${VERSION}" >> $GITHUB_OUTPUT

	- name: Docker metadata
	id: meta
	uses: docker/metadata-action@v5
	with:
	images: ${{ env.REGISTRY }}/${{ github.repository }}
	tags: \|
	type=raw,value=latest
	type=sha,prefix=sha-
	type=sha
	type=raw,value=${{ steps.version.outputs.mopidy_version }}

	- name: Build and push Docker image
	uses: docker/build-push-action@v6
	with:
	context: .
	push: true
	provenance: false
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}
	cache-from: \|
	type=gha,scope=docker-${{ github.workflow }}
	cache-to: \|
	type=gha,mode=max,scope=docker-${{ github.workflow }}

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