docker-image.yml

name: Build and Push Multi-Platform Docker Image

on:
  push:
    branches:
      - master  # Trigger on pushes to the master branch
    paths-ignore:
      - 'build.txt'  # Exclude build.txt from triggering the workflow

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout the repository
      uses: actions/checkout@v4.1.7
      
    - name: Docker Setup QEMU
      uses: docker/setup-qemu-action@v3.2.0
            
    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v3.6.1

    - name: Log in to Docker Hub
      run: echo "${{ secrets.DOCKERHUB_TOKEN }}" | docker login -u "${{ secrets.DOCKERHUB_USERNAME }}" --password-stdin

    - name: Build and push multi-platform Docker image
      run: |
        docker buildx build --platform linux/amd64,linux/arm64,linux/arm/v7 --push \
          -t ${{ secrets.DOCKERHUB_USERNAME }}/slackonos:latest .

    - name: Verify the platforms
      run: docker buildx inspect --bootstrap

    - name: Increment build number in build.txt
      run: |
        # Read the current build number
        BUILD_NUMBER=$(cat build.txt)
        # Increment the build number by 1
        BUILD_NUMBER=$((BUILD_NUMBER + 1))
        # Write the new build number back to build.txt
        echo $BUILD_NUMBER > build.txt

    - name: Commit and push updated build.txt
      run: |
        # Configure git
        git config --local user.name "github-actions[bot]"
        git config --local user.email "github-actions[bot]@users.noreply.github.com"

        # Add build.txt
        git add build.txt
        git commit -m "Increment build number to $BUILD_NUMBER"

        # Push changes
        git push