mirror of
https://github.com/docker/build-push-action.git
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122 lines
3.5 KiB
Markdown
122 lines
3.5 KiB
Markdown
## About
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GitHub Action to set up Docker [Buildx](https://github.com/docker/buildx).
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___
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* [Usage](#usage)
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* [Quick start](#quick-start)
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* [With QEMU](#with-qemu)
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* [Customizing](#customizing)
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* [inputs](#inputs)
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* [outputs](#outputs)
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* [environment variables](#environment-variables)
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* [Limitation](#limitation)
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## Usage
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### Quick start
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```yaml
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name: ci
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on:
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pull_request:
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branches: master
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push:
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branches: master
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tags:
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jobs:
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buildx:
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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@v2
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-
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name: Set up Docker Buildx
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id: buildx
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uses: docker/actions/setup-buildx@v1
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with:
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version: latest
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-
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name: Builder instance name
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run: echo ${{ steps.buildx.outputs.name }}
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-
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name: Available platforms
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run: echo ${{ steps.buildx.outputs.platforms }}
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```
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### With QEMU
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If you want support for more platforms you can use our [setup-qemu](../setup-qemu) action:
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```yaml
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name: ci
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on:
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pull_request:
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branches: master
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push:
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branches: master
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tags:
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jobs:
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buildx:
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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@v2
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-
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name: Set up QEMU
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uses: docker/actions/setup-qemu@v1
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with:
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platforms: all
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-
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name: Set up Docker Buildx
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id: buildx
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uses: docker/actions/setup-buildx@v1
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with:
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version: latest
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-
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name: Available platforms
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run: echo ${{ steps.buildx.outputs.platforms }}
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```
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## Customizing
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### inputs
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Following inputs can be used as `step.with` keys
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| Name | Type | Default | Description |
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|------------------|---------|-----------------------------------|------------------------------------|
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| `version` | String | _the one installed on the runner_ | [Buildx](https://github.com/docker/buildx) version. e.g. `v0.3.0`, `latest` |
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| `driver` | String | `docker-container` | Sets the [builder driver](https://github.com/docker/buildx#--driver-driver) to be used. |
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| `driver-opt` | String | | Passes additional [driver-specific options](https://github.com/docker/buildx#--driver-opt-options). e.g. `image=moby/buildkit:master` |
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| `install` | Bool | `false` | Sets up `docker build` command as an alias to `docker buildx` |
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| `use` | Bool | `true` | Switch to this builder instance |
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### outputs
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Following outputs are available
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| Name | Type | Description |
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|---------------|---------|---------------------------------------|
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| `name` | String | Builder instance name |
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| `platforms` | String | Available platforms (comma separated) |
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### environment variables
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The following [official docker environment variables](https://docs.docker.com/engine/reference/commandline/cli/#environment-variables) are supported:
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| Name | Type | Default | Description |
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|-----------------|---------|-------------|-------------------------------------------------|
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| `DOCKER_CONFIG` | String | `~/.docker` | The location of your client configuration files |
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## Limitation
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This action is only available for Linux [virtual environments](https://help.github.com/en/articles/virtual-environments-for-github-actions#supported-virtual-environments-and-hardware-resources).
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