docker-build-push.yml

---
name: Docker Build and Push

on:
  push:
    branches:
      - main

jobs:
  build-and-push:
    runs-on: ubuntu-latest
    permissions:
        contents: read
        packages: write
        attestations: write
        id-token: write
    steps:
    - name: Checkout code
      uses: actions/checkout@v3

    - name: Set up Docker Buildx
      uses: docker/setup-buildx-action@v2

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

    - name: Generate timestamp
      id: timestamp
      run: echo "::set-output name=timestamp::$(date +'%Y%m%d%H%M%S')"

    - name: Build and push Docker image
      uses: docker/build-push-action@v4
      with:
        context: .
        push: true
        tags: |
          ghcr.io/${{ github.repository }}:latest
          ghcr.io/${{ github.repository }}:${{ steps.timestamp.outputs.timestamp }}