build-container-installer/.github/workflows/build-container.yml

---
name: Create Container
on:
  pull_request:
    branches:
      - main
    paths:
      - 'Dockerfile'
  push:
    branches:
      - main
    paths:
      - 'Dockerfile'
  workflow_dispatch:

env:
  IMAGE_NAME: isogenerator
  IMAGE_REGISTRY: "ghcr.io/${{ github.repository_owner }}"

jobs:
  push-image:
    name: Build and push image
    runs-on: ubuntu-22.04
    permissions:
      contents: read
      packages: write
    steps:
      # Checkout push-to-registry action GitHub repository
      - name: Checkout Push to Registry action
        uses: actions/checkout@v3

      # Build metadata
      - name: Image Metadata
        uses: docker/metadata-action@v4
        id: meta
        with:
          images: |
            ${{ env.IMAGE_REGISTRY }}/${{ env.IMAGE_NAME }}

          labels: |
            io.artifacthub.package.readme-url=https://raw.githubusercontent.com/${{ github.repository }}/main/README.md
            org.opencontainers.image.description=A container image for generating Universal Blue ISO files
            org.opencontainers.image.title=${{ env.IMAGE_NAME }}
          tags: |
            type=ref,event=branch
            type=ref,event=pr
            # set latest tag for default branch
            type=raw,value=latest,enable={{is_default_branch}}

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and Push Image
        uses: docker/build-push-action@v4
        with:
          context: ./
          file: ./Dockerfile
          push: ${{ github.event_name != 'pull_request' }}
          labels: ${{ steps.meta.outputs.labels }}
          tags: ${{ steps.meta.outputs.tags }}

  check:
    name: Check build successful
    if: ${{ !cancelled() }}
    runs-on: ubuntu-latest
    needs: [push-image]
    steps:
      - name: Exit on failure
        if: ${{ needs.push-image.result == 'failure' || needs.push-image.result == 'skipped' }}
        shell: bash
        run: exit 1
      - name: Exit
        shell: bash
        run: exit 0