Create and publish a Docker image #203

	name: Create and publish a Docker image

	concurrency:
	group: ${{ github.workflow }}-${{ github.head_ref \|\| github.ref }}
	cancel-in-progress: true

	on:
	push:
	branches: ["main"]
	schedule:
	- cron: "0 2 * * 1"
	workflow_dispatch:

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

	jobs:
	build-and-push-image:
	runs-on: ubuntu-latest
	permissions:
	contents: read
	packages: write
	strategy:
	matrix:
	python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]

	steps:
	- name: Checkout repository
	uses: actions/checkout@v5

	- 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: Prep Image Name
	id: image_tag_lower
	# Black magic fuckery to ensure lowercase string as docker tag
	run: \|
	IMAGE_TAG=$(echo "${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ matrix.python-version }}" \| awk '{print tolower($0)}')
	echo "IMAGE_TAG=${IMAGE_TAG}" >> $GITHUB_OUTPUT

	- name: Build and push Docker image
	uses: docker/build-push-action@v6
	with:
	context: .
	platforms: linux/amd64,linux/arm64
	push: ${{ github.event_name != 'pull_request' }}
	tags: ${{ steps.image_tag_lower.outputs.IMAGE_TAG }}
	cache-from: type=gha
	cache-to: type=gha,mode=max
	build-args: \|
	PYTHONVERSION=${{ matrix.python-version }}

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