134 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			134 lines
		
	
	
		
			3.6 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
# Upgrade notes
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## v1 to v2
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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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### Simple workflow
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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
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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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```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: 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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### Tags with ref and Git labels
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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
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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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```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: Docker meta
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    id: meta
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    uses: docker/metadata-action@v3
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    with:
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      images: |
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        myorg/myrepository
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      tags: |
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        type=ref,event=branch
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        type=ref,event=pr
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        type=semver,pattern={{version}}
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        type=sha
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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.meta.outputs.tags }}
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      labels: ${{ steps.meta.outputs.labels }}
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```
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