Build images and push to registry #379

	name: Build images and push to registry

	on:
	schedule:
	- cron: '16 6 * * *'
	push:
	branches: [ main ]

	env:
	# Use docker.io for Docker Hub if empty
	REGISTRY: ghcr.io
	# github.repository as <account>/<repo>
	IMAGE_NAME: ${{ github.repository }}

	jobs:

	build:

	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write
	id-token: write

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

	- name: downcase REPO
	run: \|
	echo "REPO=${GITHUB_REPOSITORY,,}" >>${GITHUB_ENV}

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

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

	# Login against a Docker registry except on PR
	# https://github.com/docker/login-action
	- name: Log into registry ${{ env.REGISTRY }}
	if: github.event_name != 'pull_request'
	uses: docker/login-action@v2
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	# Extract metadata (tags, labels) for Docker
	# https://github.com/docker/metadata-action
	- name: Extract Docker metadata
	id: meta
	uses: docker/metadata-action@v4
	with:
	images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

	# Build and push Docker image with Buildx (don't push on PR)
	# https://github.com/docker/build-push-action
	- name: Build and push image
	uses: docker/build-push-action@v4
	id: build-and-push
	with:
	context: .
	platforms: linux/amd64,linux/arm64
	push: ${{ github.event_name != 'pull_request' }}
	cache-from: type=gha
	cache-to: type=gha,mode=max
	tags: \|
	${{ env.REGISTRY }}/${{ env.REPO }}:latest

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