Add upgrade notes
Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>pull/143/head
CrazyMax
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README.md
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README.md
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@ -4,6 +4,17 @@
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[](https://github.com/docker/build-push-action/actions?workflow=test)
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[](https://codecov.io/gh/docker/build-push-action)
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## Upgrade
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`v2` of this action changes drastically and now uses Docker [Buildx](https://github.com/docker/buildx). It works with
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3 new actions ([login](https://github.com/docker/login-action), [setup-buildx](https://github.com/docker/setup-buildx-action)
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and [setup-qemu](https://github.com/docker/setup-qemu-action)) that we have created. It's also rewritten as a
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[typescript-action](https://github.com/actions/typescript-action/) to be as closed as possible of the
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[GitHub Runner](https://github.com/actions/virtual-environments) during its execution (#71 #92).
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[Upgrade notes](UPGRADE.md) and many [usage examples](#usage) have been added to handle most use cases but `v1` is
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still available through [`releases/v1` branch](https://github.com/docker/build-push-action/tree/releases/v1).
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## About
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GitHub Action to build and push Docker images with [Buildx](https://github.com/docker/buildx).
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@ -0,0 +1,141 @@
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# Upgrade notes
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## v1 to v2
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* Rename `path` input to `context`
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* Rename `dockerfile` input to `file`
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* Rename `always_pull` input to `pull`
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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`](https://github.com/docker/buildx#---platformvaluevalue) input
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* Add [`allow`](https://github.com/docker/buildx#--allowentitlement) input
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* Add [`load`](https://github.com/docker/buildx#--load) input
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* Add [`outputs`](https://github.com/docker/buildx#-o---outputpath-typetypekeyvalue) input
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* Add [`cache-from`](https://github.com/docker/buildx#--cache-fromnametypetypekeyvalue) input (`cache_froms` removed)
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* Add [`cache-to`](https://github.com/docker/buildx#--cache-tonametypetypekeyvalue) input
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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 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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```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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file: ./Dockerfile
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pull: true
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push: true
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build-args: arg1=value1,arg2=value2
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cache-from: type=registry,ref=myorg/myrepository
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cache-to: type=registry,ref=myorg/myrepository
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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 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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```
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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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file: ./Dockerfile
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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.clone_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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