action.yml

name: 'Build Container Image'
description: 'Create a docker container image'
inputs:
  tags:
    description: "List of image tags (newline separated) for the resulting container image"
    required: true
    type: string
  push:
    description: "If true, the image will be pushed to the registry"
    required: false
    default: false
    type: boolean
  platforms:
    description: "Comma separated list of platforms to build the image for, i.e. 'linux/amd64,linux/arm64'"
    required: false
    default: "linux/amd64"
    type: string
  context:
    description: "Context directory for the container image build"
    required: false
    default: "."
    type: string
  build-args:
    description: "List of build arguments (newline separated) to be inserted in the container image build"
    required: false
    default: ""
    type: string
  file:
    description: "Name of the dockerfile to build"
    required: false
    default: "Dockerfile"
    type: string
  no-cache:
    description: "Set to false to enable caching of docker layers"
    required: false
    default: true
    type: boolean
  pull:
    description: "Pull base images from the registry when not available locally"
    required: false
    default: true
    type: boolean
  token:
    description: "GitHub token for logging into the ghcr container registry"
    required: false
    type: string
    default: ${{ github.token }}
  load:
    description: "Make the built image available to the current job. Load is a shorthand for `--output=type=docker`"
    required: false
    type: boolean
    default: false

runs:
  using: composite
  steps:
    - name: Set up QEMU
      uses: docker/setup-qemu-action@06116385d9baf250c9f4dcb4858b16962ea869c3 # v4.1.0

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@d7f5e7f509e45cec5c76c4d5afdd7de93d0b3df5 # v4.1.0

    - name: Login to GitHub Container Registry
      uses: docker/login-action@650006c6eb7dba73a995cc03b0b2d7f5ca915bee # v4.2.0
      with:
        registry: ghcr.io
        username: ${{ github.actor }}
        password: ${{ inputs.token }}

    - name: Build${{ inputs.push && ' and push' || ''}}
      uses: docker/build-push-action@f9f3042f7e2789586610d6e8b85c8f03e5195baf # v7.2.0
      with:
        context: "${{ inputs.context }}"
        file: "${{ inputs.file }}"
        platforms: "${{ inputs.platforms }}"
        no-cache: ${{ inputs.no-cache }}
        pull: ${{ inputs.pull }}
        build-args: "${{ inputs.build-args }}"
        push: ${{ inputs.push }}
        tags: "${{ inputs.tags }}"
        load: "${{ inputs.load }}"