name: Deploy Caddyfile to valhalla

on:
  push:
    branches: [main]
    paths:
      - Caddyfile
      - .gitea/workflows/deploy-caddy.yml
  workflow_dispatch:

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Push Caddyfile and reload Caddy
        run: |
          # Job containers do NOT inherit the runner's /config/caddy bind.
          # Docker-from-Docker with a host bind is the reliable path: the
          # volume source is resolved on valhalla, not inside the job container.
          # (Direct `cp /config/caddy/...` only works on the runner container
          # itself, which is not where this step runs.)
          apt-get update -qq && apt-get install -y -qq docker.io
          docker run --rm \
            -v /config/caddy:/dest \
            -v "$PWD/Caddyfile:/src/Caddyfile:ro" \
            alpine:3.20 \
            cp /src/Caddyfile /dest/Caddyfile
          docker exec caddy caddy reload --config /etc/caddy/Caddyfile