github-action-update-docker-image

name: Update Docker Container (Manual Trigger)
on:
  workflow_dispatch

jobs:
  get_package_version:
    name: Get Package Version
    runs-on: ubuntu-latest

    outputs:
      current_version: ${{ steps.get_package_version.outputs.CURRENT_VERSION }}
      updated_version: ${{ steps.get_package_version.outputs.UPDATED_VERSION }}

    steps:
      - uses: actions/checkout@v2

      - name: Get Package Version
        id: get_package_version
        run: |
          package_name="github-docker"
          response=$(curl -s -H "Accept: application/vnd.github.v3+json" -H "Authorization: Bearer ${{ secrets.PatToken }}" "https://api.github.com/user/packages/container/$package_name/versions")
          tag_version=$(echo "$response" | jq -r '.[0].metadata.container.tags[0]')

          # Increment the version manually
          IFS='.' read -ra version_parts <<< "$tag_version"
          patch=$((version_parts[2] + 1))
          next_version="${version_parts[0]}.${version_parts[1]}.$patch"

          echo "::set-output name=CURRENT_VERSION::$tag_version"
          echo "::set-output name=UPDATED_VERSION::$next_version"

  build_docker_image:
    name: Build Docker Image
    needs: get_package_version
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3

      - name: Display Package Versions
        run: |
          echo "Current version: ${{ needs.get_package_version.outputs.current_version }}"
          echo "Next Release   : ${{ needs.get_package_version.outputs.updated_version }}"

      - name: Build and publish a Docker image for ${{ github.repository }}
        uses: macbre/push-to-ghcr@master
        with:
          image_name: ${{ github.repository }}  # it will be lowercased internally
          github_token: ${{ secrets.PatToken }}
          image_tag: ${{ needs.get_package_version.outputs.updated_version }}