Docker Build and Push #33

	name: Docker Build and Push

	on:
	push:
	branches:
	- '*'
	pull_request:
	# Enabling this has some security implications. For now we'll leave it off.
	#pull_request_target:
	# types: [labeled]
	schedule:
	- cron: '42 06 * * sat' # Run every Saturday at 06:42 UTC


	env:
	REGISTRY: ghcr.io

	jobs:
	build-and-push:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3

	- name: Login to GitHub Container Registry (GHCR)
	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: \|
	${{ env.REGISTRY }}/${{ github.repository }}

	- name: Build and push Docker image
	id: build-and-push
	uses: docker/build-push-action@v5
	with:
	context: .
	push: ${{ github.event_name == 'push' \|\| ( github.event_name == 'pull_request_target' && contains(github.event.pull_request.labels.*.name, 'push to docker'))}}
	build-args: \|
	CFLAGS=
	NCPU=4
	provenance: false
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}
	# Don't use cache for weekly builds
	cache-from: ${{ (github.event_name != 'schedule') && 'type=gha' }}
	cache-to: type=gha,mode=max

	- name: Log Docker image digest
	if: steps.build-and-push.outputs.pushed
	run: echo "Docker image pushed ${{ steps.build-and-push.outputs.digest }}"

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