59 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			59 lines
		
	
	
		
			1.5 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
# Copy images between registries
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[Multi-platform images](https://docs.docker.com/build/building/multi-platform/)
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built using Buildx can be copied from one registry to another using the
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[`imagetools create` command](https://docs.docker.com/engine/reference/commandline/buildx_imagetools_create/):
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```yaml
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name: ci
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on:
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  push:
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    branches:
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      - 'main'
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jobs:
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  docker:
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    runs-on: ubuntu-latest
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    steps:
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      - 
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        name: Checkout
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        uses: actions/checkout@v3
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      -
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        name: Set up QEMU
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        uses: docker/setup-qemu-action@v2
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      -
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        name: Set up Docker Buildx
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        uses: docker/setup-buildx-action@v2
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      -
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        name: Login to Docker Hub
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        uses: docker/login-action@v2
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        with:
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          username: ${{ secrets.DOCKERHUB_USERNAME }}
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          password: ${{ secrets.DOCKERHUB_TOKEN }}
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      -
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        name: Login to GitHub Container Registry
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        uses: docker/login-action@v2
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        with:
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          registry: ghcr.io
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          username: ${{ github.repository_owner }}
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          password: ${{ secrets.GITHUB_TOKEN }}
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      -
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        name: Build and push
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        uses: docker/build-push-action@v3
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        with:
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          context: .
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          platforms: linux/amd64,linux/arm64
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          push: true
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          tags: |
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            user/app:latest
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            user/app:1.0.0
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      -
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        name: Push image to GHCR
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        run: |
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          docker buildx imagetools create \
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            --tag ghcr.io/user/app:latest \
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            --tag ghcr.io/user/app:1.0.0 \
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            user/app:latest
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```
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