build-push.yml

name: Build and Push Docker image

on:
  push:
    branches:
      - main  # or any other branch you want to trigger on

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout code
      uses: actions/checkout@v4

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

    - name: Login to GitHub Container Registry
      uses: docker/login-action@v3
      with:
        registry: ghcr.io
        username: ${{ github.repository_owner }}
        password: ${{ secrets.GITHUB_TOKEN }}

    - name: Build and push
      uses: docker/build-push-action@v5
      with:
        context: .
        file: ./Dockerfile
        platforms: linux/arm64,linux/arm/v7
        push: true
        tags: ghcr.io/${{ github.repository_owner }}/mqtt-gpio-switch:latest