build snap for multi arch #44

	name: docker unstable

	on:
	workflow_dispatch:
	push:
	branches:
	- main

	jobs:
	build:
	runs-on: ubuntu-latest
	permissions:
	id-token: write
	attestations: write

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

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

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

	- name: Login to DockerHub
	uses: docker/login-action@v3
	with:
	username: ${{ secrets.DOCKER_USERNAME }}
	password: ${{ secrets.DOCKER_PASSWORD }}

	- name: Login to GitHub Container Registry
	uses: docker/login-action@v3
	with:
	registry: ghcr.io
	username: ${{ secrets.GH_USERNAME }}
	password: ${{ secrets.GH_TOKEN }}

	- name: Build and push
	id: build-push
	uses: docker/build-push-action@v6
	with:
	push: true
	tags: \|
	${{ secrets.DOCKER_USERNAME }}/certbot_dns_porkbun:unstable
	ghcr.io/${{ secrets.GH_USERNAME }}/certbot_dns_porkbun:unstable
	platforms: linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64/v8
	cache-from: type=gha
	cache-to: type=gha,mode=max

	- name: Attest
	uses: actions/attest-build-provenance@v1
	id: attest
	with:
	subject-name: ghcr.io/${{ secrets.GH_USERNAME }}/certbot_dns_porkbun
	subject-digest: ${{ steps.build-push.outputs.digest }}
	push-to-registry: true

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