container-build-child-workflow.yml

name: Reusable container build workflow

env:
  # BUILDX_NO_DEFAULT_ATTESTATIONS must be set to build only arm64 and amd64 images.
  # The devcontainers/ci@v0.3 build will fail if this env variable is not set.
  BUILDX_NO_DEFAULT_ATTESTATIONS: 1

on:
  workflow_call:
    inputs:
      container_name:
        required: true
        type: string
      image_tags:
        required: false
        type: string
        default: latest
      platform:
        required: false
        type: string
        # there is no need to build ARM images for now
        # disabling to save time and resources
        default: linux/arm64/v8,linux/amd64
      from_image:
        required: true
        type: string
      from_variant:
        required: true
        type: string
      username:
        required: false
        type: string
        default: vscode
      user_id:
        required: false
        type: string
        default: 1000
      group_id:
        required: false
        type: string
        default: 1000
      clab_version:
        required: false
        type: string
      avd_github_repo:
        required: false
        type: string
      avd_branch_name:
        required: false
        type: string
      git_init:
        required: false
        type: boolean
        default: true
      ceos_lab_version:
        required: false
        type: string
        default: latest

jobs:
  build_image:
    runs-on: ubuntu-22.04
    steps:
      - name: Starting container build
        run: echo "Starting container build. Be patient. 🐢"
      - name: Checkout code ✅
        uses: actions/checkout@v4

      - name: Setup QEMU for multi-arch builds 🏗️
        uses: docker/setup-qemu-action@v3
        with:
          platforms: ${{ inputs.platform }}

      - name: Setup Docker buildX for multi-arch builds 🏗️
        uses: docker/setup-buildx-action@v3

      - name: Login to the container registry 🗝️
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Pre-build dev container image 🔨
        uses: devcontainers/ci@v0.3
        env:
          FROM_IMAGE: ${{ inputs.from_image }}
          FROM_VARIANT: ${{ inputs.from_variant }}
          USERNAME: ${{ inputs.username }}
          UID: ${{ inputs.user_id }}
          GID: ${{ inputs.group_id }}
          CLAB_VERSION: ${{ inputs.clab_version }}
          AVD_GITHUB_REPO: ${{ inputs.avd_github_repo }}
          AVD_BRANCH_NAME: ${{ inputs.avd_branch_name }}
          CEOS_LAB_VERSION_ARG: ${{ inputs.ceos_lab_version }}
          GIT_INIT_ARG: ${{ inputs.git_init }}
        with:
          subFolder: containers/${{ inputs.container_name }}-${{ inputs.image_tags }}
          imageName: ghcr.io/${{ github.repository }}/${{ inputs.container_name }}
          imageTag: ${{ inputs.image_tags }}
          platform: ${{ inputs.platform }}
          push: always