mirror of
https://github.com/docker/setup-buildx-action.git
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This should provide an easy reference for users starting to use this action who want to pin versions, so that they can easily identify the different versioning pattern used by this action. Signed-off-by: Justin Chadwell <me@jedevc.com>
180 lines
8.7 KiB
Markdown
180 lines
8.7 KiB
Markdown
[](https://github.com/docker/setup-buildx-action/releases/latest)
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[](https://github.com/marketplace/actions/docker-setup-buildx)
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[](https://github.com/docker/setup-buildx-action/actions?workflow=ci)
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[](https://github.com/docker/setup-buildx-action/actions?workflow=test)
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[](https://codecov.io/gh/docker/setup-buildx-action)
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## About
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GitHub Action to set up Docker [Buildx](https://github.com/docker/buildx).
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This action will create and boot a builder that can be used in the following
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steps of your workflow if you're using Buildx or the [`build-push` action](https://github.com/docker/build-push-action/).
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By default, the [`docker-container` driver](https://docs.docker.com/build/building/drivers/docker-container/)
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will be used to be able to build multi-platform images and export cache using
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a [BuildKit](https://github.com/moby/buildkit) container.
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___
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* [Usage](#usage)
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* [Configuring your builder](#configuring-your-builder)
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* [Version pinning](#version-pinning)
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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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* [Notes](#notes)
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* [`nodes` output](#nodes-output)
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* [BuildKit container logs](#buildkit-container-logs)
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* [Contributing](#contributing)
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## Usage
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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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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@v3
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-
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# Add support for more platforms with QEMU (optional)
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# https://github.com/docker/setup-qemu-action
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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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## Configuring your builder
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See https://docs.docker.com/build/ci/github-actions/configure-builder/
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## Version pinning
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This action builds images using [Buildx](https://github.com/docker/buildx) and
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[BuildKit](https://github.com/moby/buildkit). By default, the action will
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attempt to use the latest version of Buildx available on the GitHub Runner
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(the build client) and the latest release of BuildKit (the build server).
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To pin to a specific version of Buildx, use the `version` input. For example,
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to pin to Buildx v0.10.0:
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```yaml
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- name: Set up Docker Buildx
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uses: docker/setup-buildx-action@v3
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with:
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version: v0.10.0
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```
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To pin to a specific version of BuildKit, use the `image` option in the
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`driver-opts` input. For example, to pin to BuildKit v0.11.0:
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```yaml
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- name: Set up Docker Buildx
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uses: docker/setup-buildx-action@v3
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with:
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driver-opts: image=moby/buildkit:v0.11.0
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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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> `List` type is a newline-delimited string
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> ```yaml
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> driver-opts: |
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> image=moby/buildkit:master
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> network=host
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> ```
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> `CSV` type must be a newline-delimited string
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> ```yaml
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> platforms: linux/amd64,linux/arm64
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> ```
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| Name | Type | Description |
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|-------------------|----------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| `version` | String | [Buildx](https://github.com/docker/buildx) version. (eg. `v0.3.0`, `latest`, `https://github.com/docker/buildx.git#master`) |
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| `driver` | String | Sets the [builder driver](https://docs.docker.com/engine/reference/commandline/buildx_create/#driver) to be used (default `docker-container`) |
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| `driver-opts` | List | List of additional [driver-specific options](https://docs.docker.com/engine/reference/commandline/buildx_create/#driver-opt) (eg. `image=moby/buildkit:master`) |
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| `buildkitd-flags` | String | [Flags for buildkitd](https://docs.docker.com/engine/reference/commandline/buildx_create/#buildkitd-flags) daemon (since [buildx v0.3.0](https://github.com/docker/buildx/releases/tag/v0.3.0)) |
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| `install` | Bool | Sets up `docker build` command as an alias to `docker buildx` (default `false`) |
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| `use` | Bool | Switch to this builder instance (default `true`) |
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| `endpoint` | String | [Optional address for docker socket](https://docs.docker.com/engine/reference/commandline/buildx_create/#description) or context from `docker context ls` |
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| `platforms` | List/CSV | Fixed [platforms](https://docs.docker.com/engine/reference/commandline/buildx_create/#platform) for current node. If not empty, values take priority over the detected ones. |
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| `config`¹ | String | [BuildKit config file](https://docs.docker.com/engine/reference/commandline/buildx_create/#config) |
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| `config-inline`¹ | String | Same as `config` but inline |
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| `append` | YAML | [Append additional nodes](docs/advanced/append-nodes.md) to the builder |
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> * ¹ `config` and `config-inline` are mutually exclusive
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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 name |
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| `driver` | String | Builder driver |
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| `platforms` | String | Builder node platforms (preferred or available) |
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| `nodes` | JSON | Builder [nodes metadata](#nodes-output) |
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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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## Notes
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### `nodes` output
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```json
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[
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{
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"name": "builder-3820d274-502c-4498-ae24-d4c32b3023d90",
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"endpoint": "unix:///var/run/docker.sock",
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"driver-opts": [
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"network=host",
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"image=moby/buildkit:master"
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],
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"status": "running",
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"buildkitd-flags": "--allow-insecure-entitlement security.insecure --allow-insecure-entitlement network.host",
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"buildkit": "3fab389",
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"platforms": "linux/amd64,linux/amd64/v2,linux/amd64/v3,linux/amd64/v4,linux/386"
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}
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]
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```
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| Name | Type | Description |
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|-------------------|--------|----------------------------|
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| `name` | String | Node name |
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| `endpoint` | String | Node endpoint |
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| `driver-opts` | List | Options for the driver |
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| `status` | String | Node status |
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| `buildkitd-flags` | String | Flags for buildkitd daemon |
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| `buildkit` | String | BuildKit version |
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| `platforms` | String | Platforms available |
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### BuildKit container logs
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See https://docs.docker.com/build/ci/github-actions/configure-builder/#buildkit-container-logs
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## Contributing
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Want to contribute? Awesome! You can find information about contributing to
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this project in the [CONTRIBUTING.md](/.github/CONTRIBUTING.md)
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