name: Build and Push

on: [push]



jobs:

  build:

    runs-on: buildkit  # Matches the label you just fixed!

    steps:

      - name: Checkout

        uses: actions/checkout@v4



      - name: Build via remote BuildKit

        run: |

          # 1. Provide Registry Credentials

          # BuildKit needs a ~/.docker/config.json to push to a private registry.

          # If your registry is public or uses Node-level auth, you can skip this.

          mkdir -p ~/.docker

          echo '{"auths":{"registry.yourdomain.com":{"auth":"$(echo -n "username:password" | base64)"}}}' > ~/.docker/config.json



          # 2. Execute Build

          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