feat(build-iso): Add ability to generate ISO (#79)

* initial commit of s3 upload for iso

* Updated Readme. Updated build-iso.yml from testing in test repo

* one more note to make it look more balanced

* add artifact upload ability and adjust README to detail how to use

* One more final note to help be explicit about artifact location.

---------

Co-authored-by: Sean Thrailkill <sean@thrailkill.cloud>

1 files changed, 103 insertions, 0 deletions

diff --git a/.github/workflows/build-iso.yml b/.github/workflows/build-iso.yml
new file mode 100644
index 0000000..1083249
--- /dev/null
+++ b/.github/workflows/build-iso.yml
@@ -0,0 +1,103 @@
+---
+name: Build ISOs
+
+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
+  pull_request:
+    branches:
+      - main
+    paths:
+      - './iso.toml'
+      - './.github/workflows/build-iso.yml'
+      - './Justfile'
+
+env:
+  IMAGE_REGISTRY: "ghcr.io/${{ github.repository }}"
+  DEFAULT_TAG: "latest"
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  build:
+    name: Build ISOs
+    runs-on: ${{ inputs.platform == 'amd64' && 'ubuntu-24.04' || 'ubuntu-24.04-arm' }}
+    strategy:
+      fail-fast: false
+    permissions:
+      contents: read
+      packages: read
+      id-token: write
+
+    steps:
+      - name: lower case the image registry in case of any capitalization
+        run: |
+          echo "IMAGE_REGISTRY=${IMAGE_REGISTRY,,}" >> ${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@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
+
+      - name: Setup Just
+        uses: extractions/setup-just@dd310ad5a97d8e7b41793f8ef055398d51ad4de6 # v2
+
+      - name: Build ISO
+        id: build
+        uses: ublue-os/bootc-image-builder-action@main
+        with:
+          bootc-image-builder-image: ghcr.io/centos-workstation/bootc-image-builder:latest
+          use-librepo: true
+          config-file: ./iso.toml
+          image: ${{ env.IMAGE_REGISTRY }}:${{ env.DEFAULT_TAG }}
+
+      - name: Upload ISOs and Checksum to Job Artifacts
+        if: inputs.upload-to-s3 != true && github.event_name != 'pull_request'
+        uses: actions/upload-artifact@4cec3d8aa04e39d1a68397de0c4cd6fb9dce8ec1 # v4
+        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 }}
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