name: Build Primary Docker Image

on:
  workflow_dispatch:
    inputs:
      version:
        description: 'Semantic version to label the Docker image under (no "v" prefix, e.g. "1.2.3")'
        required: true
        type: string
      tag_latest:
        description: 'Also tag this image as :latest? (Keep false for RC and beta releases)'
        required: false
        type: boolean
        default: false

env:
  IMAGE: ghcr.io/crosstalk-solutions/project-nomad

jobs:
  check_authorization:
    name: Check authorization to publish new Docker image
    runs-on: ubuntu-latest
    outputs:
      isAuthorized: ${{ steps.check-auth.outputs.is_authorized }}
    steps:
      - name: check-auth
        id: check-auth
        run: echo "is_authorized=${{ contains(secrets.DEPLOYMENT_AUTHORIZED_USERS, github.triggering_actor) }}" >> $GITHUB_OUTPUT      

  build:
    name: Build Docker image (${{ matrix.platform }})
    needs: check_authorization
    if: needs.check_authorization.outputs.isAuthorized == 'true'
    runs-on: ${{ matrix.runner }}
    permissions:
      contents: read
      packages: write
    strategy:
      matrix:
        include:
          - platform: linux/amd64
            runner: ubuntu-24.04
            suffix: amd64
          - platform: linux/arm64
            runner: ubuntu-24.04-arm
            suffix: arm64
    steps:
      - name: Checkout code
        uses: actions/checkout@v6

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3

        uses: actions/checkout@v6
      - name: Log in to GitHub Container Registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build and push
        uses: docker/build-push-action@v5
        with:
          push: true
          platforms: ${{ matrix.platform }}
          tags: ${{ env.IMAGE }}:${{ inputs.version }}-${{ matrix.suffix }}
          build-args: |
            VERSION=${{ inputs.version }}
            BUILD_DATE=${{ github.event.workflow_run.created_at }}
            VCS_REF=${{ github.sha }}

  manifest:
    name: Create multi-arch manifest
    needs: build
    runs-on: ubuntu-latest
    permissions:
      packages: write
    steps:
      - name: Log in to GitHub Container Registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Create and push manifest
        run: |
          TAGS="${{ env.IMAGE }}:${{ inputs.version }} ${{ env.IMAGE }}:v${{ inputs.version }}"
          if [ "${{ inputs.tag_latest }}" = "true" ]; then
            TAGS="$TAGS ${{ env.IMAGE }}:latest"
          fi
          for TAG in $TAGS; do
            docker manifest create "$TAG" \
              "${{ env.IMAGE }}:${{ inputs.version }}-amd64" \
              "${{ env.IMAGE }}:${{ inputs.version }}-arm64"
            docker manifest push "$TAG"
          done