support both arm64 and amd64 images #4

	name: Generate psibase-builder-ubuntu-2204 image

	on:
	workflow_dispatch:
	push:
	branches:
	- main
	- "release/*"
	paths:
	- "docker/ubuntu-2204-builder.Dockerfile"
	- ".github/workflows/ubuntu-2204.yml"
	pull_request:
	types: [assigned, opened, synchronize, reopened, labeled]
	paths:
	- "docker/ubuntu-2204-builder.Dockerfile"
	- ".github/workflows/ubuntu-2204.yml"

	jobs:
	ubuntu-2204-builder:
	name: psibase-builder-ubuntu-2204
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v3
	with:
	submodules: false
	fetch-depth: 0

	- name: Preparation
	id: prep
	run: \|
	REGISTRY="ghcr.io"
	IMAGE="${REGISTRY}/${{ github.repository_owner }}/psibase-builder-ubuntu-2204"
	TAGS="${IMAGE}:${{ github.sha }}"
	echo ::set-output name=tags::${TAGS,,}

	- name: Showtag
	id: showtag
	run: echo ${{ steps.prep.outputs.tags }}

	# - name: Set up QEMU
	# uses: docker/setup-qemu-action@v2
	# with:
	# platforms: 'arm64'

	- name: Docker Buildx setup
	uses: docker/setup-buildx-action@v2
	with:
	buildkitd-flags: --debug

	- name: Login in to registry
	uses: docker/login-action@v2
	with:
	registry: ghcr.io
	username: ${{ github.repository_owner }}
	password: ${{ secrets.GITHUB_TOKEN }}

	- name: Build & Publish Image
	uses: docker/build-push-action@v4
	with:
	context: .
	push: true
	file: docker/ubuntu-2204-builder.Dockerfile
	tags: ${{ steps.prep.outputs.tags }}
	# platforms: linux/amd64,linux/arm64
	platforms: linux/amd64
	outputs: type=image,annotation-index.org.opencontainers.image.description=Psibase build environment based on Ubuntu 22.04

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