setup-buildx-action

name: ci

on:
  push:

jobs:
  buildx:
    runs-on: ubuntu-latest
    steps:
      -
        name: Checkout
        uses: actions/checkout@v2
      -
        name: Set up Docker Buildx
        id: buildx
        uses: docker/setup-buildx-action@v1
        with:
          version: latest
      -
        name: Builder instance name
        run: echo ${{ steps.buildx.outputs.name }}
      -
        name: Available platforms
        run: echo ${{ steps.buildx.outputs.platforms }}

With QEMU

If you want support for more platforms you can use our setup-qemu action:

name: ci

on:
  push:

jobs:
  buildx:
    runs-on: ubuntu-latest
    steps:
      -
        name: Checkout
        uses: actions/checkout@v2
      -
        name: Set up QEMU
        uses: docker/setup-qemu-action@v1
        with:
          platforms: all
      -
        name: Set up Docker Buildx
        id: buildx
        uses: docker/setup-buildx-action@v1
        with:
          version: latest
      -
        name: Available platforms
        run: echo ${{ steps.buildx.outputs.platforms }}

Customizing

inputs

Following inputs can be used as step.with keys

Name	Type	Description
`version`	String	Buildx version. (e.g. `v0.3.0`, `latest`)
`driver`	String	Sets the builder driver to be used (default `docker-container`)
`driver-opt`	String	Passes additional driver-specific options
`buildkitd-flags`	String	Flags for buildkitd daemon
`install`	Bool	Sets up `docker build` command as an alias to `docker buildx` (default `false`)
`use`	Bool	Switch to this builder instance (default `true`)

outputs

Following outputs are available

Name	Type	Description
`name`	String	Builder instance name
`platforms`	String	Available platforms (comma separated)

environment variables

The following official docker environment variables are supported:

Name	Type	Default	Description
`DOCKER_CONFIG`	String	`~/.docker`	The location of your client configuration files

Keep up-to-date with GitHub Dependabot

Since Dependabot has native GitHub Actions support, to enable it on your GitHub repo all you need to do is add the .github/dependabot.yml file:

version: 2
updates:
  # Maintain dependencies for GitHub Actions
  - package-ecosystem: "github-actions"
    directory: "/"
    schedule:
      interval: "daily"

Limitation

This action is only available for Linux virtual environments.