build-disk.yml

---
name: Build disk images

on:
  workflow_dispatch:
    inputs:
      upload-to-s3:
        description: "Upload to S3"
        required: false
        default: false
        type: boolean
      platform:
        required: true
        type: choice
        options:
          - amd64
          - arm64
      image_tag:
        description: "Image tag to install"
        required: true
        default: latest
        type: string
  pull_request:
    branches:
      - main
    paths:
      - './disk_config/disk.toml'
      - './disk_config/iso.toml'
      - './.github/workflows/build-disk.yml'

env:
  IMAGE_NAME: ${{ github.event.repository.name }} # output of build.yml, keep in sync
  IMAGE_REGISTRY: "ghcr.io/${{ github.repository_owner }}"  # do not edit
  BIB_IMAGE: "quay.io/centos-bootc/bootc-image-builder:latest"

concurrency:
  group: ${{ github.workflow }}-${{ github.ref || github.run_id }}
  cancel-in-progress: true

jobs:
  build:
    name: Build disk images
    runs-on: ${{ inputs.platform == 'amd64' && 'ubuntu-24.04' || 'ubuntu-24.04-arm' }}
    strategy:
      fail-fast: false
      matrix:
        disk-type: ["qcow2", "anaconda-iso"]
    permissions:
      contents: read
      packages: read
      id-token: write

    steps:
      - name: Prepare environment
        run: |
          USER_UID=$(id -u)
          USER_GID=$(id -g)
          # Concatenate the types with a hyphen
          DISK_TYPE=$(echo "${{ matrix.disk-type }}" | tr ' ' '-')
          # Lowercase the image uri
          echo "IMAGE_REGISTRY=${IMAGE_REGISTRY,,}" >> ${GITHUB_ENV}
          echo "IMAGE_NAME=${IMAGE_NAME,,}" >> ${GITHUB_ENV}
          echo "DISK_TYPE=${DISK_TYPE}" >> ${GITHUB_ENV}
          echo "USER_UID=${USER_UID}" >> ${GITHUB_ENV}
          echo "USER_GID=${USER_GID}" >> ${GITHUB_ENV}

      - name: Install dependencies
        if: inputs.platform == 'arm64'
        run: |
          set -x
          sudo apt update -y
          sudo apt install -y \
            podman

      - name: Maximize build space
        if: inputs.platform != 'arm64'
        uses: ublue-os/remove-unwanted-software@cc0becac701cf642c8f0a6613bbdaf5dc36b259e # v9
        with:
          remove-codeql: true

      - name: Checkout
        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7

      - name: Validate image tag
        id: select-image
        shell: bash
        env:
          INPUT_IMAGE_TAG: ${{ inputs.image_tag || 'latest' }}
        run: |
          set -euo pipefail
          image_tag="${INPUT_IMAGE_TAG,,}"
          if [[ "$image_tag" != "latest" && ! "$image_tag" =~ ^ics410_[a-z0-9]+$ ]]; then
            echo "Unsupported image tag: $INPUT_IMAGE_TAG"
            echo "Use 'latest' or an ics410_* tag, such as 'ics410_l01'."
            exit 1
          fi
          echo "image_tag=${image_tag}" >> "$GITHUB_OUTPUT"

      - name: Select image tag
        shell: bash
        if: matrix.disk-type == 'anaconda-iso'
        env:
          SELECTED_TAG: ${{ steps.select-image.outputs.image_tag }}
        run: |
          set -euo pipefail
          sed "s|__IMAGE_REF__|${IMAGE_REGISTRY}/${IMAGE_NAME}:${SELECTED_TAG}|g" \
            disk_config/iso.toml > disk_config/iso-selected.toml

      - name: Build disk images
        id: build
        uses: osbuild/bootc-image-builder-action@8661cd3832544ad68c12dcde8681b13ab0f56a8d # main
        with:
          builder-image: ${{ env.BIB_IMAGE }}
          config-file: ${{ matrix.disk-type == 'anaconda-iso' && './disk_config/iso-selected.toml' || './disk_config/disk.toml' }}
          image: ${{ env.IMAGE_REGISTRY }}/${{ env.IMAGE_NAME }}:${{ steps.select-image.outputs.image_tag }}
          chown: ${{ env.USER_UID }}:${{ env.USER_GID }}
          types: ${{ matrix.disk-type }}
          additional-args: --use-librepo=True

      - name: Upload disk images and Checksum to Job Artifacts
        if: inputs.upload-to-s3 != true && github.event_name != 'pull_request'
        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        with:
          path: ${{ steps.build.outputs.output-directory }}
          if-no-files-found: error
          retention-days: 0
          compression-level: 0
          overwrite: true
      
      - name: Upload to S3
        if: inputs.upload-to-s3 == true && github.event_name != 'pull_request'
        shell: bash
        env:
          RCLONE_CONFIG_S3_TYPE: s3
          RCLONE_CONFIG_S3_PROVIDER: ${{ secrets.S3_PROVIDER }}
          RCLONE_CONFIG_S3_ACCESS_KEY_ID: ${{ secrets.S3_ACCESS_KEY_ID }}
          RCLONE_CONFIG_S3_SECRET_ACCESS_KEY: ${{ secrets.S3_SECRET_ACCESS_KEY }}
          RCLONE_CONFIG_S3_REGION: ${{ secrets.S3_REGION }}
          RCLONE_CONFIG_S3_ENDPOINT: ${{ secrets.S3_ENDPOINT }}
          SOURCE_DIR: ${{ steps.build.outputs.output-directory }}
        run: |
          sudo apt-get update
          sudo apt-get install -y rclone
          rclone copy $SOURCE_DIR S3:${{ secrets.S3_BUCKET_NAME }}