build-and-push.yml

name: Build and push Docker image

on:
  push:
    branches: [ main ]

concurrency:
  group: build
  cancel-in-progress: true

permissions:
  contents: read
  packages: write

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

      - name: Docker login
        uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ github.token }}

      - name: Setup Docker buildx
        uses: docker/setup-buildx-action@v3

      - name: Build and push
        id: build
        uses: docker/build-push-action@v6
        with:
          push: true
          tags: |
            ghcr.io/${{ github.repository }}:${{ github.sha }}
            ghcr.io/${{ github.repository }}:latest
          file: web.Dockerfile

      - name: Generate artifact attestation
        uses: actions/attest-build-provenance@v1
        with:
          subject-name: ghcr.io/${{ github.repository }}-web
          subject-digest: ${{ steps.build.outputs.digest }}
          push-to-registry: true