update #29

	name: Build and Push Docker image to GHCR

	on:
	push:
	branches: [main]
	paths:
	- 'Dockerfile'
	- 'docker/**'
	- '*/.rs'
	- '*/.toml'
	- '.github/workflows/**'

	permissions:
	contents: read
	packages: write # パッケージへの書き込み権限を指定:contentReference[oaicite:3]{index=3}

	env:
	REGISTRY: ghcr.io
	IMAGE_NAME: ${{ github.repository_owner }}/synpage

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

	steps:
	- name: Checkout repository
	uses: actions/checkout@v3

	- name: Log in to GitHub Container Registry
	uses: docker/login-action@v3
	with:
	registry: ${{ env.REGISTRY }}
	username: ${{ github.actor }}
	password: ${{ secrets.GITHUB_TOKEN }}

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

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

	- name: Build and push Docker image
	uses: docker/build-push-action@v5
	with:
	context: .
	push: true
	tags: \|
	${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
	${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ github.sha }}
	platforms: linux/amd64,linux/arm64
	cache-from: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:cache
	cache-to: type=registry,ref=${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:cache,mode=max

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