name: Build Dockerfile with Remote BuildKit

on:
  push:
    branches:
      - main

jobs:
  build:
    runs-on: ["buildkit"]  # must match runner labels

    steps:

      - name: Install Node.js on Alpine
        run: |
          apk add --no-cache nodejs npm git bash curl


      # Checkout the repository
      - name: Checkout repository
        uses: actions/checkout@v4

      # Install buildctl if not already installed
      - name: Install buildctl
        run: |
          if ! command -v buildctl &> /dev/null; then
            echo "Installing buildctl..."
            wget -qO- https://github.com/moby/buildkit/releases/download/v0.12.5/buildkit-v0.12.5.linux-amd64.tar.gz \
              | tar -xz -C /usr/local/bin --strip-components=1 bin/buildctl
          fi

      # Build and push Dockerfile using remote BuildKit
      - name: Build and Push Dockerfile
        run: |
          buildctl \
            --addr tcp://buildkit.default.svc.cluster.local:1234 \
            build \
            --frontend dockerfile.v0 \
            --local context=. \
            --local dockerfile=. \
            --output type=image,name=registry/myapp:latest,push=true