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docker-build-push/setup-qemu/README.md
CrazyMax e9cb922263
Fix and cleanup of v2 setup actions
Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
2020-08-16 04:14:43 +02:00

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## About
GitHub Action to install [QEMU static binaries](https://github.com/multiarch/qemu-user-static).
___
* [Usage](#usage)
* [Customizing](#customizing)
* [inputs](#inputs)
* [Limitation](#limitation)
## Usage
```yaml
name: ci
on:
pull_request:
branches: master
push:
branches: master
tags:
jobs:
qemu:
runs-on: ubuntu-latest
steps:
-
name: Checkout
uses: actions/checkout@v2
-
name: Set up QEMU
id: qemu
uses: docker/setup-qemu-action@v1
with:
image: tonistiigi/binfmt:latest
platforms: all
-
name: Available platforms
run: echo ${{ steps.qemu.outputs.platforms }}
```
## Customizing
### inputs
Following inputs can be used as `step.with` keys
| Name | Type | Default | Description |
|------------------|---------|-----------------------------|------------------------------------|
| `image` | String | `tonistiigi/binfmt:latest` | QEMU static binaries Docker image. e.g. [`tonistiigi/binfmt:latest`](https://hub.docker.com/r/tonistiigi/binfmt/tags) |
| `platforms` | String | `all` | Platforms to install. e.g. `arm64,riscv64,arm` |
### outputs
Following outputs are available
| Name | Type | Description |
|---------------|---------|---------------------------------------|
| `platforms` | String | Available platforms (comma separated) |
## Limitation
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).