# =============================================================================
# Gitea Actions workflow (active for THIS repository).
# Builds examples/Dockerfile and pushes it to Harbor as a smoke test of the
# k3s runner + DinD + Harbor pipeline.
#
# Required repo/org Actions secrets:
#     HARBOR_REGISTRY, HARBOR_USERNAME, HARBOR_PASSWORD
# Optional repo/org Actions variable:
#     HARBOR_PROJECT  (default: "library")
# =============================================================================
name: build-and-push

on:
  push:
    branches:
      - main
  workflow_dispatch:

jobs:
  build-and-push:
    runs-on: ubuntu-22.04
    env:
      HARBOR_PROJECT: ${{ vars.HARBOR_PROJECT || 'library' }}
      IMAGE_NAME: build-on-k3s-sample
    steps:
      - name: Checkout
        uses: actions/checkout@v4

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

      - name: Compute image tags
        id: meta
        run: |
          IMAGE="${{ secrets.HARBOR_REGISTRY }}/${HARBOR_PROJECT}/${IMAGE_NAME}"
          echo "image=${IMAGE}"            >> "$GITHUB_OUTPUT"
          echo "sha=${GITHUB_SHA::12}"     >> "$GITHUB_OUTPUT"

      - name: Log in to Harbor
        uses: docker/login-action@v3
        with:
          registry: ${{ secrets.HARBOR_REGISTRY }}
          username: ${{ secrets.HARBOR_USERNAME }}
          password: ${{ secrets.HARBOR_PASSWORD }}

      - name: Build and push
        uses: docker/build-push-action@v6
        with:
          context: ./examples
          file: ./examples/Dockerfile
          push: true
          tags: |
            ${{ steps.meta.outputs.image }}:latest
            ${{ steps.meta.outputs.image }}:${{ steps.meta.outputs.sha }}