name: build-ublue
on:
  push:
    branches: 
      - main
  pull_request:
    branches:
      - main
  schedule:
    - cron: '0 0 * * *'  # every day at midnight
env:
    IMAGE_NAME: base
    IMAGE_TAGS: latest ${{ github.sha }}
    IMAGE_REGISTRY: ghcr.io/${{ github.repository_owner }}
    REGISTRY_USER: ${{ github.actor }}
    REGISTRY_PASSWORD: ${{ github.token }}

jobs:
  push-ghcr:
    name: Build and push image
    runs-on: ubuntu-22.04
    strategy:
      fail-fast: false
    steps: 
      # Checkout push-to-registry action github repository
      - name: Checkout Push to Registry action
        uses: actions/checkout@v2

      # Build image using Buildah action
      - name: Build Image
        id: build_image
        uses: redhat-actions/buildah-build@v2
        with:
          containerfiles: |
            ./Containerfile
          image: ${{ env.IMAGE_NAME }}
          tags: ${{ env.IMAGE_TAGS }}
          oci: true

      # Workaround bug where capital letters in your GitHub user name make it impossible to push to GHCR.
      # https://github.com/macbre/push-to-ghcr/issues/12
      - name: Lowercase Registry
        id: registry_case
        uses: ASzc/change-string-case-action@v5
        with:
          string: ${{ env.IMAGE_REGISTRY }}

      # Push the image to GHCR (Image Registry)
      - name: Push To GHCR
        uses: redhat-actions/push-to-registry@v2
        id: push
        with:
          image: ${{ steps.build_image.outputs.image }}
          tags: ${{ steps.build_image.outputs.tags }}
          registry: ${{ steps.registry_case.outputs.lowercase }}
          username: ${{ env.REGISTRY_USER }}
          password: ${{ env.REGISTRY_PASSWORD }}
          extra-args: |
            --disable-content-trust

      - name: Echo outputs
        run: |
          echo "${{ toJSON(steps.push.outputs) }}"