build.yml

---

name: Create and publish a Docker image for w3

on: [push, pull_request]

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}

jobs:
  build-and-push-image:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      packages: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

      - name: Log in to the Container registry
        uses: docker/login-action@v3
        with:
          registry: "${{ env.REGISTRY }}"
          username: "${{ github.actor }}"
          password: "${{ secrets.GITHUB_TOKEN }}"

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v3
        with:
          images: "${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}"
          tags: |
            type=sha
            type=ref,event=branch
      - name: Build and push Docker image
        uses: docker/build-push-action@v5
        with:
          context: .
          push: ${{ github.ref == 'refs/heads/master' }}
          tags: "${{ steps.meta.outputs.tags }}"
          labels: "${{ steps.meta.outputs.labels }}"

  deploy:
    runs-on: ubuntu-latest
    needs: build-and-push-image
    if: github.ref == 'refs/heads/master'

    steps:
      - name: Trigger deployment webhook
        run: curl -sX POST --fail-with-body https://webhook.stacken.kth.se/hooks/${{ secrets.DEPLOY_WEBHOOK_SECRET }}