name: Push to GHCR (Manual)

on:
  workflow_dispatch:
    inputs:
      tag:
        required: true
        description: "Build specific tag"

jobs:
  docker:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2
        with:
          ref: ${{ github.event.inputs.tag }}
      - name: Set up Buildx
        uses: docker/setup-buildx-action@v1
      - name: Login to registry
        uses: docker/login-action@v1
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Build & push
        uses: docker/build-push-action@v2
        with:
          context: .
          platforms: linux/amd64,linux/arm64
          push: true
          tags: |
            ghcr.io/${{ github.repository }}:latest
            ghcr.io/${{ github.repository }}:${{ github.event.inputs.tag }}