🧪 Experimental

This repository is considered EXPERIMENTAL and under active development until further notice. It is subject to non-backward compatible changes or removal in any future version so you should pin to a specific tag/commit of this action in your workflow (i.e docker/bake-action@v1.1.3).

About

GitHub Action to use Docker Buildx Bake as a high-level build command.

---

• Usage
• Customizing
  • inputs
• Keep up-to-date with GitHub Dependabot
• Limitation

Usage

name: ci
on:
  pull_request:
    branches: master
  push:
    branches: master
    tags:

jobs:
  bake:
    runs-on: ubuntu-latest
    steps:
      -
        name: Checkout
        uses: actions/checkout@v2
      -
        name: Set up QEMU
        uses: docker/setup-qemu-action@v1
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
      -
        name: Login to DockerHub
        uses: docker/login-action@v1 
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      -
        name: Build and push
        uses: docker/bake-action@master
        with:
          files: |
            ./config.hcl
          targets: |
            release
          push: true

Customizing

inputs

Following inputs can be used as step.with keys

List type is a newline-delimited string

set: target.args.mybuildarg=value

set: |
  target.args.mybuildarg=value
  foo*.args.mybuildarg=value

CSV type is a comma-delimited string

targets: default,release

Name	Type	Description
builder	String	Builder instance (see setup-buildx action)
files	List/CSV	List of bake definition files
targets	List/CSV	List of bake targets
no-cache	Bool	Do not use cache when building the image (default false)
pull	Bool	Always attempt to pull a newer version of the image (default false)
load	Bool	Load is a shorthand for --set=*.output=type=docker (default false)
push	Bool	Push is a shorthand for --set=*.output=type=registry (default false)
set	List	List of targets values to override (eg: targetpattern.key=value)

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.