build-docker.yml

name: Build and Push Docker

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

on:
  push:
    branches:
      - main
  schedule:
    - cron: 0 0 * * *

env:
  REGISTRY: ghcr.io
  IMAGE_NAME: ${{ github.repository }}
  BUILDX_NO_DEFAULT_ATTESTATIONS: 1

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

      - name: Set up QEMU
        uses: docker/setup-qemu-action@v3

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

      - name: Login to GitHub Container Registry
        uses: docker/login-action@v3
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}
          logout: false

      - name: Set date tag
        id: date_tag
        run: echo "DATE_TAG=$(date +'%Y%m%d')" >> $GITHUB_ENV

      - name: Build and push
        id: push
        uses: docker/build-push-action@v6
        with:
          context: .
          file: ./Dockerfile
          push: true
          tags: |
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
            ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.DATE_TAG }}
          platforms: linux/amd64,linux/arm64

      - name: Attest
        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