name: Build and Push Docker Image

on:
  workflow_dispatch:
  push:
    branches: [ main ]

env:
  DOCKERHUB_REPO: caddy-test

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      -
        name: Checkout code
        uses: actions/checkout@v4
      -
        name: Parse Caddy version
        id: version
        run: echo "VERSION=$(grep -Eo 'caddy:[0-9]+\.[0-9]+\.[0-9]+$' Dockerfile | cut -d ':' -f2)"  >> $GITHUB_ENV
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3
      -
        name: Login to Docker Hub
        uses: docker/login-action@v3
        with:
          username: ${{ vars.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      -
        name: Build and push
        uses: docker/build-push-action@v5
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: ${{ github.event_name != 'workflow_dispatch' }}
          tags: ${{ vars.DOCKERHUB_USERNAME }}/${{ env.DOCKERHUB_REPO }}:latest,${{ vars.DOCKERHUB_USERNAME }}/${{ env.DOCKERHUB_REPO }}:${{ env.VERSION }}