name: build-container

on:
  push:
    branches: [main]
    tags: ['v*']
  workflow_dispatch:

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: docker/setup-qemu-action@v3
      - uses: docker/setup-buildx-action@v3

      # Repo secrets needed (Settings -> Actions -> Secrets):
      #   REGISTRY_TOKEN  a Gitea access token with write:package scope
      #   REGISTRY_USER   optional; defaults to the user who pushed
      - uses: docker/login-action@v3
        with:
          registry: git.necloud.us
          username: ${{ secrets.REGISTRY_USER || gitea.actor }}
          password: ${{ secrets.REGISTRY_TOKEN }}

      - id: meta
        uses: docker/metadata-action@v5
        with:
          images: git.necloud.us/nate/hub
          tags: |
            type=raw,value=latest,enable={{is_default_branch}}
            type=sha,format=short
            type=ref,event=tag

      - uses: docker/build-push-action@v6
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=registry,ref=git.necloud.us/nate/hub:buildcache
          cache-to: type=registry,ref=git.necloud.us/nate/hub:buildcache,mode=max