name: Publish Docker image

on:
  push:
    tags:
      - "*"
  workflow_dispatch:
    inputs:
      name:
        description: "reason"
        required: false

jobs:
  push_to_registries:
    name: Push Docker image to github registries
    runs-on: ubuntu-latest
    permissions:
      packages: write
      contents: read
      attestations: write
      id-token: write
    env:
      REGISTRY: ghcr.io
      IMAGE_NAME: ${{ github.repository }}
    steps:
      - name: Check out the repo
        uses: actions/checkout@v3

      - name: Log in to the Container registry
        uses: docker/login-action@v2
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Extract metadata (tags, labels) for Docker
        id: meta
        uses: docker/metadata-action@v4
        with:
          images: |
            ghcr.io/${{ github.repository }}

      - name: Build and push Docker images
        uses: docker/build-push-action@v3
        id: push
        with:
          context: .
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}

      - name: Generate artifact attestation
        uses: actions/attest-build-provenance@v1
        id: attest
        with:
          subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
          subject-digest: ${{ steps.push.outputs.digest }}
          push-to-registry: true