docker.yml

on:
  workflow_dispatch:
  push:
    branches: ['main']
  pull_request:

jobs:
  build-and-push-image:
    runs-on: ubuntu-latest

    permissions:
      contents: read
      packages: write
      attestations: write
      id-token: write

    steps:
    - uses: docker/login-action@v3
      with:
        registry: ghcr.io
        username: ${{ github.actor }}
        password: ${{ secrets.GITHUB_TOKEN }}

    - id: meta
      uses: docker/metadata-action@v5
      with:
        images: ghcr.io/${{ github.repository }}

    - id: push
      uses: docker/build-push-action@v6
      with:
        push: true
        tags: ${{ steps.meta.outputs.tags }}
        labels: ${{ steps.meta.outputs.labels }}
        cache-from: type=gha
        cache-to: type=gha,mode=max

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