fix(docker): move ARG and ENV COMMIT_SHA to runner stage #47

	name: Build Docker Images
	on:
	release:
	types: [published]
	workflow_dispatch:
	push:
	branches:
	- main

	env:
	REGISTRY: ghcr.io

	jobs:
	build-images:
	name: Build and push multi-arch images
	runs-on: ubuntu-24.04
	strategy:
	fail-fast: false
	matrix:
	image:
	- name: backend
	dockerfile: backend.Dockerfile
	image_name: em-geeklab/nexus-gate-server
	- name: frontend
	dockerfile: frontend.Dockerfile
	image_name: em-geeklab/nexus-gate-web
	permissions:
	contents: read
	packages: write
	attestations: write
	id-token: write
	steps:
	- name: Checkout repository
	uses: actions/checkout@v4
	- name: Log in to the Container registry
	uses: docker/login-action@v3
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}
	- name: Set up QEMU
	uses: docker/setup-qemu-action@v3
	- name: Set up Docker Buildx
	uses: docker/setup-buildx-action@v3
	- name: Extract metadata (tags, labels) for Docker
	id: meta
	uses: docker/metadata-action@v5
	with:
	images: ${{ env.REGISTRY }}/${{ matrix.image.image_name }}
	- name: Build and push Docker image
	id: push
	uses: docker/build-push-action@v6
	with:
	context: .
	push: true
	tags: ${{ steps.meta.outputs.tags }}
	labels: ${{ steps.meta.outputs.labels }}
	file: ${{ matrix.image.dockerfile }}
	platforms: linux/amd64,linux/arm64
	build-args: COMMIT_SHA=${{ github.sha }}
	- name: Generate artifact attestation
	uses: actions/attest-build-provenance@v2
	with:
	subject-name: ${{ env.REGISTRY }}/${{ matrix.image.image_name }}
	subject-digest: ${{ steps.push.outputs.digest }}

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