148 lines
		
	
	
		
			4.4 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			148 lines
		
	
	
		
			4.4 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| # Upgrade notes
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| 
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| ## v1 to v2
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| 
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| * Input `path` is now called `context` for consistency with other Docker build tools
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| * `path` defaults to current git repository so checkout action is not required in a workflow
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| * Rename `dockerfile` input to `file` for consistency with other Docker build tools
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| * Rename `always_pull` input to `pull` for consistency with other Docker build tools
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| * Add `builder` input to be able to choose a builder instance through our [setup-buildx action](https://github.com/docker/setup-buildx-action)
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| * Add `platforms` input to support multi-platform builds
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| * Add `allow` input
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| * Add `load` input
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| * Add `outputs` input
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| * Add `cache-from` input (`cache_froms` removed)
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| * Add `cache-to` input
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| * Rename `build_args` input to `build-args` for consistency with other Docker build tools
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| * Add `secrets` input
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| * Review `tags` input
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| * Remove `repository` input. See [Simple workflow](#simple-workflow) for migration
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| * Remove `username`, `password` and `registry` inputs. Login support moved to [docker/login-action](https://github.com/docker/login-action) repo
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| * Remove `tag_with_sha`, `tag_with_ref`, `add_git_labels` inputs. See [Tags with ref and Git labels](#tags-with-ref-and-git-labels) for migration
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| * Handle Git context
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| * Add `digest` output
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| 
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| ### Simple workflow
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| 
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| ```yaml
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| # v1
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| steps:
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|   -
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|     name: Checkout code
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|     uses: actions/checkout@v2
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|   -
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|     name: Build and push Docker images
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|     uses: docker/build-push-action@v1
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|     with:
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|       username: ${{ secrets.DOCKER_USERNAME }}
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|       password: ${{ secrets.DOCKER_PASSWORD }}
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|       repository: myorg/myrepository
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|       always_pull: true
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|       build_args: arg1=value1,arg2=value2
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|       cache_froms: myorg/myrepository:latest
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|       tags: latest
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| ```
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| 
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| ```yaml
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| # v2
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| steps:
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|   -
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|     name: Checkout code
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|     uses: actions/checkout@v2
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|   -
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|     name: Set up Docker Buildx
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|     uses: docker/setup-buildx-action@v1
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|   -
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|     name: Login to DockerHub
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|     uses: docker/login-action@v1
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|     with:
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|       username: ${{ secrets.DOCKER_USERNAME }}
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|       password: ${{ secrets.DOCKER_PASSWORD }}
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|   -
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|     name: Build and push
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|     uses: docker/build-push-action@v2
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|     with:
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|       context: .
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|       pull: true
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|       push: true
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|       build-args: |
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|         arg1=value1
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|         arg2=value2
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|       cache-from: type=registry,ref=myorg/myrepository:latest
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|       cache-to: type=inline
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|       tags: myorg/myrepository:latest
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| ```
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| 
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| ### Tags with ref and Git labels
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| 
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| ```yaml
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| # v1
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| steps:
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|   -
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|     name: Checkout code
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|     uses: actions/checkout@v2
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|   -
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|     name: Build and push Docker images
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|     uses: docker/build-push-action@v1
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|     with:
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|       username: ${{ secrets.DOCKER_USERNAME }}
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|       password: ${{ secrets.DOCKER_PASSWORD }}
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|       repository: myorg/myrepository
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|       push: ${{ github.event_name != 'pull_request' }}
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|       tag_with_ref: true
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|       tag_with_sha: true
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|       add_git_labels: true
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| ```
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| 
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| ```yaml
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| # v2
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| steps:
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|   -
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|     name: Checkout
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|     uses: actions/checkout@v2
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|   -
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|     name: Prepare
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|     id: prep
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|     run: |
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|       DOCKER_IMAGE=myorg/myrepository
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|       VERSION=edge
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|       if [[ $GITHUB_REF == refs/tags/* ]]; then
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|         VERSION=${GITHUB_REF#refs/tags/}
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|       elif [[ $GITHUB_REF == refs/heads/* ]]; then
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|         VERSION=$(echo ${GITHUB_REF#refs/heads/} | sed -r 's#/+#-#g')
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|       elif [[ $GITHUB_REF == refs/pull/* ]]; then
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|         VERSION=pr-${{ github.event.number }}
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|       fi
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|       TAGS="${DOCKER_IMAGE}:${VERSION}"
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|       if [ "${{ github.event_name }}" = "push" ]; then
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|         TAGS="$TAGS,${DOCKER_IMAGE}:sha-${GITHUB_SHA::8}"
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|       fi
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|       echo ::set-output name=version::${VERSION}
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|       echo ::set-output name=tags::${TAGS}
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|       echo ::set-output name=created::$(date -u +'%Y-%m-%dT%H:%M:%SZ')
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|   -
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|     name: Set up Docker Buildx
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|     uses: docker/setup-buildx-action@v1
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|   -
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|     name: Login to DockerHub
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|     if: github.event_name != 'pull_request'
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|     uses: docker/login-action@v1 
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|     with:
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|       username: ${{ secrets.DOCKER_USERNAME }}
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|       password: ${{ secrets.DOCKER_PASSWORD }}
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|   -
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|     name: Build and push
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|     uses: docker/build-push-action@v2
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|     with:
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|       context: .
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|       push: ${{ github.event_name != 'pull_request' }}
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|       tags: ${{ steps.prep.outputs.tags }}
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|       labels: |
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|         org.opencontainers.image.source=${{ github.event.repository.html_url }}
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|         org.opencontainers.image.created=${{ steps.prep.outputs.created }}
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|         org.opencontainers.image.revision=${{ github.sha }}
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| ```
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| 
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| > You can also use the [Docker meta action to handle tags and labels](docs/advanced/tags-labels.md) based on GitHub
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| > actions events and Git metadata.
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