Docker (builder) #280

	name: Docker (builder)

	# This workflow uses actions that are not certified by GitHub.
	# They are provided by a third-party and are governed by
	# separate terms of service, privacy policy, and support
	# documentation.

	on:
	workflow_dispatch:
	schedule:
	- cron: '27 0 * * 1'
	push:
	branches: [ "main", "devel" ]
	# Publish semver tags as releases.
	tags: [ 'v..*' ]

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


	jobs:
	build_builder:
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write
	steps:
	- uses: actions/checkout@v4
	name: Checkout
	with:
	submodules: true

	- name: Set up QEMU
	uses: docker/setup-qemu-action@v3

	- name: Setup buildx
	uses: docker/setup-buildx-action@v3

	- name: Log into registry ${{ env.REGISTRY }}
	if: github.event_name != 'pull_request'
	uses: docker/login-action@v3
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Docker metadata
	id: meta
	uses: docker/metadata-action@v5
	with:
	images:
	${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}

	- name: Docker Build
	uses: docker/build-push-action@v5
	with:
	platforms: linux/amd64,linux/arm64
	context: ./build-container
	file: ./build-container/Dockerfile
	push: ${{ github.event_name != 'pull_request' }}
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}
	cache-from: type=gha
	cache-to: type=gha,mode=max

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