Create and publish a Docker image #100

	name: Create and publish a Docker image

	on:
	release:
	types: [published]
	branches: ['latest']

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

	jobs:
	push-image:
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write
	steps:
	- name: Checkout repository
	uses: actions/checkout@v4
	- name: Get Release Tag
	id: get_release_tag
	run: echo "version=$(echo $GITHUB_REF \| cut -d'/' -f3)" >> $GITHUB_OUTPUT
	- name: Set up QEMU
	uses: docker/setup-qemu-action@v3
	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3
	- name: Log in to the Container registry
	uses: docker/login-action@v3
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}
	- name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@v5
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
	- name: Build and push Docker image
	id: push
	uses: docker/build-push-action@v6
	with:
	context: .
	file: ./Dockerfile
	platforms: linux/arm64,linux/amd64
	push: true
	outputs: type=image,name=target,annotation-index.org.opencontainers.image.description=A relay between a Matrix.org room and a Meshtastic radio,org.opencontainers.image.title=MMRelay-Docker
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}

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